# Posts by cherry

Total # Posts: 76

**Thermodynamics**

What temperature change in Celsius degrees is produced when 800.00 calories are absorbed by 120.0 grams of water?

**Thermodynamics**

how many calories are absorbed when 250.0 grams of warm water from 20.0c to 60.0c?

**social studies**

which pull factor would most likely encourage an immigrant who wanted to reason sell cattle in the United States? A. industrial jobs** B. inexpensive land C. The promise of freedom D. expensive Landon home country am i correct?

**Chemistry(please check my answer)**

The transuranium elements A. are the elements with atomic numbers above 92. *** B. occur in nature. C. are sometimes radioactive. D. all of the above

**Chemistry(please check my answer)**

When a radioactive isotope undergoes Beta Decay, which of the following will NOT occur? A. The mass number of the original nucleus changes. B. The atomic number of the original nucleus changes. C. The original nucleus approaches greater stability. D. Energy is released.***

**Chemistry(please check my answer)**

Thanks :)

**Chemistry(please check my answer)**

A radioactive isotope of radium (Ra-226) has a half-live of 1620 years. How much of this isotope remains after three (3) half-lives? A. 1/2 B. 1/4 C. 1/8*** D. None

**Chemistry(please check my answer)**

Which of the following is true concerning gamma radiation? A. The mass number of the radioisotope decreases by four. B. The atomic number of the radioisotope decreases by two. C. The atomic number of the radioisotope increases by one. D. Neither the mass number nor the atomic ...

**Chemistry(please check my answer)**

Darn that was my first answer, I just second guessed myself...thank you!

**Chemistry(please check my answer)**

Which of the following is an oxidation reaction? A. AuCl4- → AuCl 2- **** B. Mn7+ → Mn2+ C. Cl2 → ClO3- D. Co3+ → Co2+

**Chemistry(please check my answer)**

DrBob222 I did see it, I answered to your comment, please see what I wrote :) and thank you for your help :)

**Chemistry(please check my answer)**

Among the following, which is an oxidation-reduction reaction? A. Na2S + CaCO3 → CaS + Na2CO3 B. 2HNO3 + Mg(OH)2 → Mg(NO3)2 + 2H2O C. H2 + F2 → 2HF**** D. 3Ba(OH)2 + 2H3PO4 → Ba3(PO4)2 + 6H2O

**Chemistry(please check my answer)**

Thank you bobpursley :)

**Chemistry(please check my answer)**

When the equation HCl + MnO2 → MnCl2 + H2O + Cl2 is balanced, what is the coefficient for HCl? A. 1 B. 2 C. 3 D. 4***

**Chemistry (please check my answer)**

You have to read the question. It asks which is FALSE.

**Chemistry (please check my answer)**

Actually no, DrBob222, you would be wrong. That was my original answer, but I got it wrong. Letter B is the correct answer for this particular question. Thank you anyway! :)

**Chemistry (please check my answer)**

Thank you very much :)

**Chemistry (please check my answer)**

Identify a false statement about how to protect iron from corrosion. A. Coat the surface with oil, paint, or plastic. B. Attach a metal that is more easily reduced. ******* C. Exclude air and water. D. Attach a metal that is a better reducing agent.

**Chemistry**

Which of the following is true concerning the reaction below? H2S + HNO3 → S + NO + H2O A. S is reduced. B. H is oxidized. C. N is reduced. D. O is oxidized. ***

**Chemistry**

Oh, of course, sorry. I am thinking it is C?

**Chemistry**

Which of the following is NOT a characteristic of a strong acid and a strong base? A. Has a [H+] higher than water B. Is corrosive to most metals C. Has a pH at the extreme end of the scale D. Completely dissociates in water

**Chem**

Doing which of the following generally increases the entropy of a substance? A. freezing it B. dissolving it in water C. condensing it D. all of the above My answer: D, all of the above.

**Chem**

Actually, I figured it out...it is B!

**Chem**

Which of the following is the correct expression for the rate of the following reaction? Note: not all species are gaseous. CuO(s) + H2S (g) <--> Cu(s) + H2O (g) A. [Cu] x [H2O] / ([CuO] x [H2S]) B. [H2O] / [H2S] C. [CuO] x [H2S] / ([Cu] x [H2O]) D. None of these are ...

**Chem**

Thanks :)

**Chem**

An antifreeze solution is prepared containing 40.0 g of ethylene glycol (molar mass = 62.0 g/mol) in 60.0 g of water. Calculate the freezing point of this solution. Which calculation is it? A. 120.1⁰C B. -20.1⁰C C. 0.518 ⁰C D. 20.1⁰C

**Chem**

Which of the following results from the presence of a solute in a given solvent? A. The vapor pressure of the solution is lower than that of the pure solvent. B. The boiling point of the solution is lower than that of the pure solvent. C. The freezing point of the solution is ...

**Math/Precal**

How do i find the exact value for (Cos 5pi/16)(Cos pi/16) + (sin 5pi/16)(sin pi/16)

**Fine Art**

How are the elements of art depicted in the artwork named "Winged genie fertilizing a date tree?" I know that shape, line and space is used but I do not know how they are used in this artwork. I even looked at all the other similar questions but none of them had ...

**Math**

Please help! Im in a rush!

**Math**

All picture frames in a store are on sale at the same percent off the regular price. This sign is near the picture frames to help shoppers calculate the sale price. regular price sale price ------------- ---------- 4.00 3.00 6.00 4.50 8.00 6.00 10.00 7.50 a. What is the ...

**ics**

which type of thinking is encouraged by the discovery model of teaching??

**english 9!! (hunger games)**

what jobs did the people in the capitol have or what work did they do?

**english 9!! (hunger games)**

what are the differences between the capitol and other districts looking upon: a.Food b. Shelter c. Work d. Recreation e. Safety i have to make a graphic orgnaizer please help!!

**health and career 8!!**

what is a falco ardosiacus? complete sentences please!

**Geometry**

Find the area of a square whose sides are all tangent to the circle.

**algebra 2**

During last night’s basketball game, Lisa Schmidt made 30 points in field goals. A field goal is worth 2 or 3 points. If Lisa made 9 field goals worth 2 points each, how many did she make worth 3 points each? Let x represent the number of 2-point field goals Lisa made and...

**Math**

This isn't very urgent but can you please break this down to me step by step? I really don't understand. I get that I'm supposed to use the order of operations but I still get lost. 2[4(9-7)+1]/3

**math**

if you know that 7* 8=56 , how can you use the commutative (Order) Property of Multiplication to find the product of 8*7 ?

**algebra**

are the lines through each points parallel or perpendicular. (2,4) (-1,-1) (8,0) (11,5) solve

**How many terms are in the following polynomial?**

it is sorry

**How many terms are in the following polynomial?**

YES! #1Student

**How many terms are in the following polynomial?**

oops I chose c. Is this correct??

**How many terms are in the following polynomial?**

6x^4+3x3-2x^2+15x-14 a. 5 b. 4 c. 3 d. 2

**Math**

Name the coefficients in the polynomial 4x^2+3x-3 a. 4, -3, -3 b. 4, 3 c. 4, 3, 3 d. -4, -3 I choose d Check it pleaase!

**BIOLOGY**

In angiosperms, pollen grains are A. diploid and are made when haploid gametes join in fertilization B. diploid and are made when haploid gametophytes join in pollination C. Haploid and are made when haploid spores undergo mitosis D. haploid and are made when haploid ovules ...

**accounting**

The trial balance of Bair Company includes the following balance sheet accounts. Identify the accounts that require adjustment. For each account that requires adjustment, indicate (a) the type of adjusting entry (prepaid expenses, unearned revenues, accrued revenues, and ...

**cja/334**

need help with reseach process and terminology paper

**math**

what is the area of the region enclosed by the graphs of y=2- lx-3l and y= x^2-2x?

**mathematics**

expand and simplify (x-4)^3

**maths**

simplify:4(2x-4)-(3x-1)

**maths**

the statement "ten more than seven times a number x"

**maths**

if x =3 then 5 - 2x = 20 - 7x is this true or false

**communication arts**

can you please help me make my thesis statement? My topic is domestic violence on children. I can't think of a good thesis statement

**Algebra 1a**

translate 25% of 118,250 into an expression.

**college**

First write the value that makes the denominator zero then solve the equation x-8/2x+5=x+6/x

**Organic Chem**

hello I was wondering how can I Convert the following Fischer projection to perspective formula Fischer Projection img371.imageshack .us/i/fischer.jpg/

**ss world history**

What kinds of government system was established in Ethiopia after Italian imperialism

**9th grade**

What led to Germany's decision to sign the armistice

**language**

could you edit my speech and check it over please? Have you ever read the book “The little engine that could”? It kept saying I-think-I-can I-think-I-can. And guess what? He ended up doing it. Just believe in yourself, and anything can happen. Good morning teachers ...

**language**

actually, my speech is almost complete, i just needed a few more ideas for the ending.

**language**

thank you SraJMcGin your answer really helped me.

**geo**

sorry can u just help me with my question??

**geo**

ummmmmmm that's a bit creepy cuz were not

**geo**

thank you. im just having a rough time with geography, im only in gr 6. I just get stressed.

**geo**

i think land use changes because they need land for different reasons. plz help me, im not sure!

**geo**

why does land use change?

**Math: Direct Variation**

what are the formulas that illustrates direct blinear variation ?? please help me !! i can't find any formula !! .. humpf .. :(

**geography**

Which city has the highest population in the northeast region?

**physics**

Oh motorcycle has a mass of 300 kg what force is needed to give and exenteration of 8 m/s squared

**Critical Thinking**

Posting assignments from University of Phoenix or Axia College on a public web site without permission from copyright owner is a violation of copyright laws. Also, cheating is totally unacceptable.

**Religious Education**

Is God real? Which is the true religion? For many people around the world, God is very real. The true religion is the one that a person whole-heartedly believes and faithfully follows. Hi Cherry. Considering this is a homework question, most Religious Education classes center ...

**Math**

can anyone help me at all. I have several of these for homework for tomorrow. Solve for n 2n =4xp - 6 WHOA! Where did "p" come from? That is a part of the problem? Divide each term by 2 to get n = 2xp -3

**Essay Revisions**

i love u

**Math: Direct Variation**

k=5/4x is already an answer !! :)

**Math: Direct Variation**

correct !! nice explanation !! :)

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