# 10th grade Chemistry

5,172 results-
## Chemistry

How is Surface catalyst(heterogeneous) and homogeneous catalyst different? I'm in 10th grade chemistry and I don't understand it.

*asked by Kat on May 24, 2011* -
## Choosing High School Courses

I want to major in something English or History related, probably Secondary Education, International Studies, or Journalism. I am currently enrolled in chemistry and I am doing horribly. Would colleges rather see me take chemistry and get a bad grade, or

*asked by Corinne on February 23, 2009* -
## english

- Computers - English - Foreign Languages - Health - Home Economics - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten - Elementary School - 1st Grade - 2nd Grade - 3rd Grade - 4th Grade - 5th Grade - 6th

*asked by peter on January 8, 2010* -
## 11th grade

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?

*asked by stefanie coplin on November 6, 2009* -
## chemistry

Dr Bob, Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question again, 10th grade chemistry, I found a video on You Tube that makes it easy to understand. It is, The Sci Guys, Ph indicator,

*asked by lulu on March 6, 2016* -
## DrBob222

Im in the 10th grade in Chemistry 1 Honors. Im learning to write a chemical equation. Im confuse on that statement i was given for my homework. The products and reactants are just magnesium Sulfide and magnesium and sulfur? Then why are they talking about

*asked by Christy on April 30, 2008* -
## math

Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade?

*asked by jenna on October 6, 2014* -
## statistics

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B”

*asked by Sarah on March 24, 2013* -
## chemistry

I have a chemistry project where I need to make an object move using my knowledge of chemistry. The object os a small ball the size of a large marble. It must be moved using chemistry and NOT physics (ie slope wind etc). I am 15 and in grade 11.

*asked by Didier on April 8, 2010* -
## chemistry

How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles

*asked by jake on August 27, 2012* -
## math

a student is selected at is the probability the the randomly selected stundent is neither a 10th grade nor an 11th grade express your answer in fraction in simplest form

*asked by a student is selected at is the probability the th on August 25, 2011* -
## ALL subjects..

Hi!! Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct? Please!! Help..

*asked by Unknown on March 8, 2013* -
## Biochem

Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School

*asked by Pop on November 13, 2014* -
## Math (trigonometry)

MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th

*asked by Sammy on December 4, 2012* -
## chemistry

I am a freshman in college, and am taking a placement test soon, but haven't seen chemistry since 10th grade. I'd appreciate any help I can get from anyone here to help me solve this problem: Hydrogen and sulfur chemically combine to form the gas hydrogen

*asked by John on January 5, 2012* -
## 10th grade

what classes should i take in 10th grade?

*asked by katlyn on May 28, 2009* -
## Question

I'M CURIOS SO DON'T JUST JUDGE ME AND BE RUDE i'M REALLY CURIOUS AND i FORGOT TO ASKED THIS QUESTION. DO NOT JUDGE ME!!!! Do I start taking SAT's and ACT's in grade 10th or 11th/12th grade???? I'm really curious.

*asked by Lauren on December 30, 2011* -
## science-biology

I am in 10th grade and can you please help me by defining what is bio-catalysts?

*asked by sandra on April 17, 2012* -
## Algebra

Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade

*asked by Anonymous on October 10, 2014* -
## Physics

Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade 10th Grade 11th Grade 12th Grade

*asked by Rameel on April 17, 2016* -
## English

1. What day is your birthday? - It is June 14th. - It is the second Monday. 2. When is your birthday? - It's this Friday. - It is on January 10th. - It is January 10th. 3. What date is your birthday? - It is January 10th. - It is on January 10th.

*asked by rfvv on March 16, 2017* -
## biology

can someone from connexus in the 10th grade help me with the biology final exam? I just want to make sure my answers are right.

*asked by Salem on January 22, 2018* -
## 10th Grade Chemistry

I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?

*asked by Wuhta on July 7, 2011* -
## Math

In a class 85% of the student received the highest grade in English Literature, 80% in Math, 75% in History, and 30% in Chemistry. About what percentage of the students could you say for sure that they received the highest grade in all 4 subjects?

*asked by Kim on October 15, 2009* -
## history

What are three good points to talk about in a research paper about child labor in the 1800s? 10th grade level please.

*asked by bob on October 1, 2012* -
## Math

I am tring to finish my 10th grade. I got hurt last Jan. 2007. And was force to quit public school. In short of every. I started online schooling and I have to write an essay for a final grade in Math compare three college to each other and make a graph

*asked by Cody on September 13, 2007* -
## Geometry

I have a project due this week and I have to make a board game, so I need 15 questions about right triangles. I already have about 7, so is there a website with some examples? This is 10th grade geometry.

*asked by Jenny on April 5, 2010* -
## World History

What was the only thing that united East & West Pakistan? Time period: - Decolonization in India and Africa, 10th grade history

*asked by Jasmine on April 9, 2012* -
## c++

Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function

*asked by jermaine on May 18, 2012* -
## Math

Determine the coordinates of the endpoint of a segment CE with one endpoint at C(3,10) and a midpoint at (-1,-6). Disclaimer: This is 10th grade geometry.

*asked by Sahana E. on September 29, 2011* -
## Chemistry

I'm not doing so well in ap chemistry. i think i'm not studying the right way. can anyone suggest how i can raise my grade? i do my homework but it doesn't seem to help.

*asked by Grant on October 14, 2007* -
## general

Some states have high school starting at 9th grade while some start only in 10th. so when are the kids ready for AP classes? is this school dependent?

*asked by andy on November 6, 2008* -
## alg

The 10th grade raffle sold 127 tickets. If they award 1st and 2nd prize, how many different pairs of winners are possible? a) 16,129 b) 254 c) 16,002 d) 8,001 the answer i picked was c

*asked by sean on July 2, 2010* -
## 10th

i am just abt to finish my 10th grade,i am very weak at maths and science,hence i have opted to take economics. 1.is this the right choice? 2.is there goin to be maths in it? 3.what are the core subjects involved?

*asked by sam on February 23, 2011* -
## math

The students at Millerville High School were surveyed about their favorites type of music. The results are in the table. to the nearest whole percent, what percent of the students who chose country as their favorite are in 9th grade?

*asked by marilyn on May 20, 2016* -
## math

At the end of the 8th grade,Lin was 3.6 feet tall.Over the next two years he grew 1.2 feet tall. How tall was Lin at the end of the 10th grade

*asked by Nausicaa on September 7, 2016* -
## Chemistry

Does anyone know the answers to the Chemistry unit 4 lesson 11 ( Chemical Bonding ) test ?? In 11th grade

*asked by Tacohut227 on November 15, 2016* -
## 7th grade

i need help on Chemistry and i am in 7th grade i don't know how to do some problems and i would like to know how to translate statements into equation form?

*asked by Hope on January 23, 2010* -
## Instrumental

Can I get some advice on guitars? I'm a 10th grade student looking to purchase a guitar and self-teach. Would you suggest starting off with acoustic rather than electric? Is there a particular guitar you would recommend to a beginner? What about costs?

*asked by Anonymous on October 14, 2008* -
## algebra

how many tiles 10cm by 25cm on each side is needed for a bathroom 8m by 10m? I need help on how to solve it... I learned how to do this in 8th grade but I'm now in 10th and I forgot how to do it. I'm preparing for the highschool exit exam and I need to do

*asked by kimberly on February 17, 2015* -
## Math Lit

In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.

*asked by Thabo on February 5, 2012* -
## statistics

At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random. a.) What is the probability that he received an A

*asked by Sharon on October 4, 2009* -
## math

ok i have 10th grade math next year and i don't even know half the stuff for this year and its summer brake and im worrying about math..what do i do

*asked by caroline on June 14, 2012* -
## English

How many sentences should a short essay have? I need to write a short essay for my world history class...I'm in 10th grade btw

*asked by WillWork4Help on January 25, 2016* -
## statistics

Leslie took two midterm exams and earned the following scores: 82 on the chemistry exam (class distribution: μ = 75, σ = 6.25) and 63 on the physics exam (class distribution: μ = 59, σ = 3.57). Rounding to two decimal points, on which exam should

*asked by Sally on April 15, 2014* -
## Algebra II

If one leg of a right triangle is 5 times the square root of 3 centimeters, and the hypotenuse is 2 more than the other leg, what is the length of the other leg? While it does say please show my work, I literally have NO idea how to solve this, and this is

*asked by Trip on May 25, 2016* -
## MATH

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal

*asked by MANISH on March 24, 2014* -
## 5th math

what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be

*asked by pat on February 1, 2011* -
## algebra

An “A” is considered 4.0, a “B” is 3.0, a “C” is 2.0, a “D” is 1.0, and an “F” is 0. In your first semester you received the following grades. Calculate your grade point average English = credits 3.0 Grade = C Biology = credits 4.0

*asked by Kristen on September 22, 2015* -
## Chemistry

can anyone help me on my chemistry problem. i need a merck index to solve this. i have a PH of 10.7 and the nearest solution that is near to it is 10.32. The solution that is 10.32 is NaHCO3. i subtract both of them to get the ratio of log (HA)/(A-). i

*asked by Chris on October 19, 2007* -
## Chemsitry

I just took my Chemistry midterm, and would like to know how to calculate my grade on the midterm with the curve. MEAN = 8.9 STANDARD DEVIATION = 2.9 MY SCORE = 7 Thank You!

*asked by Anonymous on October 12, 2010* -
## Chemistry

I just took my Chemistry midterm, and would like to know how to calculate my grade on the midterm with the curve. MEAN = 8.9 STANDARD DEVIATION = 2.9 MY SCORE = 7 Thank You!

*asked by Anonymous on October 12, 2010* -
## English

Posted by rfvv on Monday, July 13, 2015 at 9:33am. Lesson Plan .... Standards Addressed: General Goal9s): Specific Objectives: ...... ===================== In a leson plan, what is 'Standards Addressed'?•English - Writeacher, Monday, July 13, 2015 at

*asked by rfvv on July 14, 2015* -
## medical Terminology

The most easily treated tumor is A. Grade I. B. Grade V. C. Grade III. D. Grade X. A is my answer

*asked by debbie on February 28, 2016* -
## chemistry

where can i find printable worksheets from prentice hall for chemistry? I looked, but could not find any from PH online for any grade level. nor did I.

*asked by lily on May 8, 2007* -
## Math 7th gr

it is about bowling, your final score is 14 less than your friends, did you have a spare in the 10th round? 9th round 10th final friend 8 - 7 / 6 105 89 105 you 6 3 9 82 I don't know bowling, so it is a bit unfair.. the final should be 105-14=91 and since

*asked by ed on August 29, 2018* -
## Science

Which branches of science do pharmacists need knowledge of to do their job properly? A.physics and chemistry B.biology and chemistry C.chemistry and geology D.physics and computer science Is the answer B?

*asked by Gwen on August 19, 2014* -
## Chemistry

I know that this is an off topic question, but I need you to respond to this.... I received barely an A in my chemistry class, and my teacher gave me a 2/25 on an assignment... Although I got that grade, I still have an A.. I asked my teacher why and she

*asked by Anonymous on November 8, 2013* -
## Chemistry

I know that this is an off topic question, but I need you to respond to this.... I received barely an A in my chemistry class, and my teacher gave me a 2/25 on an assignment... Although I got that grade, I still have an A.. I asked my teacher why and she

*asked by Anonymous on November 8, 2013* -
## Chemistry

This is for grade 11 chemistry, balancing equations. Help asap? I'd like to get it done by tonight, if possible. Type of reaction: Predict product in words: Write Balance equation: Heres the question. Aluminum+ Zinc Sulfide =

*asked by Colton on March 13, 2016* -
## classroom instruction

Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i need help finding information on the state of wisconsin and 1st

*asked by scooby on February 19, 2010* -
## math

In new Your a taxi costs 72 cents for the first 1/10th of a mile and 15 cents for every additional 1/10th mile. How much does it cost to drive 6 miles? Set up and solve? I do not understand how you got this answer...can you explain? .72+ .15(6-.1).1 =

*asked by ava on February 27, 2014* -
## math

I have a question I would really appreciate the answer. If 15% of my grade is 74% and 96 is 15% of my grade and 40% of my grade is a 60.5% without the final counting for 30% what is my grade? Please help thank you.

*asked by kim on June 26, 2015* -
## statistics

At a certain college, 15% of the students received an A in their required math course, 10% received an A in their required Chemistry course, 5% received an A in both. A student is selected at random. a.) What is the probability tha he receieved an A in

*asked by Sharon on October 2, 2009* -
## Survey Math

A survey of 240 10th grade students in a local High School found that there were 140 girls and 100 boys in the grade. Of the 140 girls, 100 preferred gym class while 40 preferred art class. Of the 100 boys, 40 preferred gym class while 60 preferred art

*asked by Alex on October 12, 2013* -
## statistics

At a certain college, 15% of the students received an A in their required math course, 10% receieved an A in their required chemistry course, and 5% received an A in both. A student is selected at random. a.) What is the probability that he received an A

*asked by Sharon on October 3, 2009* -
## Chem

why is an understanding of chemistry important in biology? All digestion, nutrition, muscle usage/reactions, cell division/reproduction, and all of the enzymatic processes at work in the body are chemisty. Even eyesight is a chemical reaction. So you need

*asked by Samantha on June 18, 2006* -
## Math 157-1

Use the data in the grade-distribution Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade Frequency A 2 B 8 C 11 D 2 F 1 How would the graph change if there were

*asked by Tyga on March 19, 2010* -
## Math

If you pass general chemistry, then you can take organic chemistry. You pass general chemistry. ˆ You can take organic chemistry. Let P = you pass general chemistry Let Q = you can take organic chemistry I came up with P - >Q P therefore Q But my set up

*asked by Madison on January 21, 2011* -
## Math

At Jefferson School, both 6th grade & 7th grade classes take a math test. The average score for the 6th grade is 80 and for the 7th grade is 90. If there are twice as many students, in the 7th grade as there is in the 6th grade, what is the average test

*asked by Sidney on January 15, 2016* -
## Math

Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade..Frequency A......2 B......8 C......11 D......2 F......1 How would the graph in Exercise 7 change if there were

*asked by Anonymous on November 1, 2009* -
## Math

Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade..Frequency A......2 B......8 C......11 D......2 F......1 How would the graph in Exercise 7 change if there were

*asked by Anonymous on October 27, 2009* -
## algebra

In 1992, the life expectancy of males in a certain country was 61.6 years. In 1995, it was 65.2 years. Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is...

*asked by Jenniah on September 12, 2010* -
## French

Directions: I wrote a paragraph saying my name, how old I am, my nationality, my hair color, eye color, what I like/not like to do, and 2 things about me. Could you please check my spelling, punctuation, ect.. and could you please give me a letter grade

*asked by Rachel on August 23, 2009* -
## Math - average grade

Does anyone know how to calculate average point grade? I have the following data: grade D - 2 students - 4,9 percent grade C - 6 students - 14,7 percent grade B - 12 students - 29,2 percent grade A - 21 students - 51,2 percent What is the average grade?

*asked by refy on February 17, 2010* -
## math

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an

*asked by nicole on September 22, 2008* -
## math

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an

*asked by nicole on September 22, 2008* -
## Samples and Predictions Math

Help please I really don't understand this! 1)Janine wishes to conduct a poll to predict how many students will vote for her for class president. Which polling methods are likely to be biased? Choose all answers that are correct. A. Five people in each of

*asked by Rochelle on June 1, 2016* -
## appling middle

If the data were displayed in a circle graph, what percent of the graph would represent the seventh grade? Enrollment is Sixth grade 64, Seventh grade 64, and Eighth grade is 70

*asked by ry on March 11, 2011* -
## literature for kids

Picture books are usually written on a __________ reading level. A. kindergarten B. first-grade C. third-grade D. fifth-grade A?

*asked by bev on November 27, 2015* -
## math

Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an idiot... Thank You So Much -The mystery # is a decimal.. -The digit in the 1's place

*asked by nikol on September 22, 2008* -
## Math

If a grade was drawn at random from the data shown below, what is the probability that the grade is not a B? Grade Frequency A 2 B 8 C 11 D 2 F 1 I think it is 1 out of 5 or 4 but I am not sure? Please help :) Thank you much!

*asked by Shannon on December 5, 2010* -
## Math

Kayla has a 41% grade average. Then sha takes an exam that is for 20% of her grade and gets an 100%. What is her grade now?

*asked by Ashley on May 25, 2011* -
## Algebra

In 1992, the life expectancy of males in a certain country was 68.3 years. In 1998, it was 71.1 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992. The linear function E(t) that fits the data is...

*asked by Barb on September 3, 2010* -
## Math

A student needed to get a final grade of 90 to get a grade of A for the semester. He scored 83, 85, 92, 86, and 87. If the last two scores would be counted as one score. What is the least grade the student would need to get to get a final grade of A? Is

*asked by Kareen on August 14, 2015* -
## Business English

Exercise Guideline:Assume that your readers are at about the 10th grade level in education. Revise these sentences for easy communication to this audience. 1. we must terminate all deficit financing. 2.we must endeavor to correct this problem by expediting

*asked by efi on October 18, 2011* -
## Pre algebra

Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?

*asked by Ashley on May 25, 2011* -
## Math

In a class of 100 students, 40 offer Biology and 10 offer Chemistry and Biology .10 offer Physics and Chemistry , and 30 offer Physic and Biology . Each student offer at least one of the three subjects. The number of students who offer Biology is equal to

*asked by Delson on June 9, 2016* -
## what can i compare middle school to?

what can i compare middle school to? (use in metaphor), based on 6th, 7th, and 8th grade. for example playing monopoly 6th grade - buying properties, 7th grade- adjusting to the game, 8th grade - stress over money

*asked by NEEDSHELP(: on May 16, 2010* -
## Math Word Problem

Riding on a school bus are 20 students in ninth grade, 10 students in tenth grade, 9 students in eleventh grade, and 7 students in twelfth grade. Approximately what percent of students on the bus are in ninth grade? How do I go about solving this?

*asked by Sheila on December 9, 2016* -
## CHEMISTRY!!!!! HELP!!

I'm looking for a chemistry and applied chemistry textbook that had been published between 2011-2014. Please help because I couldn't find one on google.

*asked by Jane on October 18, 2014* -
## Chemistry

Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to

*asked by Mima on April 20, 2012* -
## Chemistry

Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to

*asked by Mima on April 20, 2012* -
## Euclidean Geometry

I am in the 10th Grade and my question is: The base of an isosceles triangle is 21cm. long. The altitude to the base is 9cm. long. What is the approx. measure of a base angle of the triangle? The tangent of that angle is 9/10.5 = 0.8571 Trigonometric

*asked by Blake on April 28, 2007* -
## Math

A student needed to get a final grade of 90 to get a grade of A for the semester. If the last two scores would be counted as one score. What is the least grade the student would need to get to get a final grade of A? Is the answer 45? /

*asked by Kareen on August 13, 2015* -
## math

The 5th and 10th terms of A. P are - 12 and 27 respectively. Find the A. P and its 15th term. (B) The first three terms of an A. P are x and the 10th term.

*asked by oshinowo ayodeji Samuel on February 10, 2016* -
## working with data

josephs final averages in science class are shown in the table below. homework % toward final grade-20% average-93 quizzes % toward final grade-20% average-92 tests % toward final grade-40% average-85 final exam % toward final grade-20% average-? what is

*asked by mike on February 24, 2008* -
## math(QUESTION)

Suzan has a 69 as her grade in a class. If she does a quiz worth 9% of her grade what will her grade be?

*asked by dalia on March 7, 2014* -
## Chemistry (kind of)

Okay so this is actually for an english assignment where we have to report on a problem in our field....mine happens to be Chemistry so I was wondering what kind of problems or disputes can be caused in a chemistry lab...

*asked by Stefanie on February 6, 2009* -
## mathematics concepts

Fraction symbols can usually be safely introduced A. at the beginning of third grade. B. near the end of first grade. C. near the end of third grade. D. at the beginning of second grade. my answer is c.

*asked by Brittney on February 21, 2015*