CHEMISTRY (WEBWORK)

58,560 results, page 12

Chemistry

1kpa to mmhg

chemistry

1/10^-8 in scientific notation

chemistry

What is the eq.wt of C7H6O3 and why ??😊

chemistry

What is the eq.wt of C7H6O3 and why ??😊

chemistry

K(s)+NH3(g)→ ?

chemistry

what is a sigma bond

chemistry

what is the structure of OF anion?

chemistry

What is avogadro's law

chemistry

A solution with a pH of 7 has a [OH1-] of

CHEMISTRY

A solution with a pH of 7 has a [OH1-] of? 0M or 7M???????????????????

chemistry

what is formula of pepsi?

Chemistry

How do you change 15% to moles

chemistry

what is shorthanded configuration of Mg and Cl

chemistry

What is the ph of 0.25 M tartaric acid? Ka=2.5*10^-5M

Chemistry

what is the VSEPR of NF4+

Chemistry

What is the cause of hexagonal structure ?

chemistry

how many electrons can n=4 l=1 have?

chemistry

How many moles are their in 10.6 L os SO2 ?

Chemistry

Calculate OH and H pH= 12 How to set this up

Chemistry

How many moles are in 1.59 kg of sodium?

Chemistry

How many moles are there in 0.7g of CFC's

chemistry

What are the uses of azomethine?

chemistry

What are diatomic elements?

chemistry

How are ions formed?

Chemistry

Pb + S yield FeS

Chemistry- Dr. Bob

Why doesn't Rb react with N2?

Chemistry

Did u think about it?

Chemistry

Is optimum ph for enzyme 7-14?

Chemistry

2F2(g)+2H2O(l)=?

Chemistry

What is the mass of 5mole of li(li=7)

Chemistry

C+H2O ARROW CO+H2

Chemistry

What is the [H3O+] of a solution if its pH = 8.26?

Chemistry

What is and isotope pair?

Chemistry

H2S+Is >2HI+S

Chemistry

Caso4+naoh

CHEMISTRY

WHEN THE PH IS 4.0 WHAT IS THE COLOUR OF THE INDICATOR

CHEMISTRY

WHEN THE PH IS 0.4 WHAT IS THE COLOUR OF THE INDICATOR

chemistry

What is pOH of 0.1M H2SO4?

chemistry

what is activation energy?

Chemistry

Downlad Project

Chemistry

Define normality

chemistry

When is there a need to determine G? A. When H > 0 and S < 0 B. When H > 0 and S = 0 C. When H > 0 and S > 0 D. When H = 0 and S < 0

Chemistry

How many electrons in CH3NH3+ ?

Chemistry

Convert a density of 13.6g/ml to lb/ft^3

Chemistry

Al3+ and HPO42

chemistry

empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%

Chemistry

Are the units for frequency Nu or Hz????????!

Chemistry

What are the isomers of chlorobromobenzene

chemistry

what are the isomers of chlorodibromobenzene

chemistry

Pl help...what are the isomers of chlorodibromobenzene

chemistry

Suppose f′′(x)=−36sin(6x) and f′(0)=−5, and f(0)=−3 f(π/3)=?

chemistry

Suppose f′′(x)=−36sin(6x) and f′(0)=−5, and f(0)=−3 f(π/3)=?

Chemistry

What is the oxidation state of Fe in Fe(CO)5

chemistry

how do you convert 7.5% w/v NaCI to mM

Chemistry

What's the pH of 0.15M C3H6O3?

chemistry

calculate the pH of 0.1M NH4NO3

SCIENCE

WHAT IS MEAN OF CHEMISTRY?

Chemistry

How many different f orbitals are there?

Chemistry

How to identify anions

chemistry

what is electromagnetic radiation

chemistry

what are the electrolytes in ORS?

Chemistry

100.0cm3 of

chemistry

What is a saturated solution?

chemistry

Why is CO2 not ionic?

Chemistry

Convert 9.45 μm to inches.

Chemistry

How many orbitals are in the l = 4 subshell?

Chemistry - Hybridization

Can anyone help me with this questioin pleasee? Describe the orientation and relative energy levels of sp2 and sp3 orbitals with respect to unhyberdized orbitals (1s, 2s, 2px, 2py, 2pz orbitals) 1s and 2s are spherical. 2px, 2py, and 2pz are at 90o to each other (mutually ...

chemistry (drbob222)

I posted yesterday. Re: Chemistry (Sunday, October 4, 2009 at 12:49pm). Here's the information I left out. Number 3 simply states: nickel forms a large number of ammonia salts Ni^2+(NH3)m(Br)n . p(H2O) where m, n, and p represent the coefficients in the formula How do you know...

chemistry

Hey guys please help me answer these chemistry questions.? 1. can a strong acid be diluted. explain in detail 2. can a weak acid be diluted. explain in detail 3. how does your observation of sunlight change when you place two different concentrations of food colored solution ...

Chemistry

Atom-Particle that cannont be divided in half becasue it is in its smallest form. Reactants-Substances that exist before the reaction begins. Endothermic Reaction-take in, or absorb heat energy. Exothermic Reaction- Release Heat energy Inhibitor-makes a reaction slower. Rate ...

chemistry

Does anybody know any websites that there are chemistry labs that could possibly be used in a CSI investigation? I can’t find anything. http://antoine.frostburg.edu/chem/senese/101/organic/faq/amino-acid-test.shtml

Need help on my report on a famous Chemist

http://www.liv.ac.uk/Chemistry/Links/refbiog.html Would you please help me with my report on a famous chemist, i need ideas on who i should do it on, and i need to identify his/her contributions to my life, and the report has to be one and a half to two pages long. go lik a ...

Chemistry

I am completely lost in chemistry. Everything the teacher says sounds like a different language to me and I am usually really good in the class. Can someone help me do this problem please? An element "E" is present as 10E (The 10 is like an exponent to the left of the E) with ...

Chemistry Equation(again!)

Posted by chrissy on Saturday, January 6, 2007 at 1:23pm. In a lab expirement you add copper(II)nitrate to pure zinc. Write a balanced equation for this expirement and predict if a reaction will occur. For Further Reading Chemistry Equation - DrBob222, Saturday, January 6, ...

chemistry

To what volume should you dilute 131 mL of an 8.20 M CuCl2 solution so that 49.0 mL of the diluted solution contains 4.53g CuCl2 ? Chemistry...Help!! - Dr Russ, Wednesday, December 8, 2010 at 4:43am Molar mass of CuCl2 is 134.5 g mol^-1 so solution needs to contain 4.53 g / ...

Chemistry (chromatography)

I had a chromatography experiment for chemistry and here is one of the questions: Did the compounds travel farther in the water or the isopropyl alcohol (rubbing alcohol)? Explain why you think that this is the case. Now, the compounds traveled the farthest in the water but I ...

chemistry

1. A website promoting the use of alternative energy vehicles and hybrid technologies claims that, \"A typical automobile in the USA uses about 40 gallons of gasoline every month, producing about 750 lbs of carbon dioxide.\" To determine the truth of this statement, calculate ...

English

Hello! I will type 2 exercises from the lesson I am teaching on Wednesday-english as a foreign language - 8th graders ( it will be graded) I need you to help me with some ideas. It says: LEAD- IN: A Here is a list of some natural sciences: BIOLOGY CHEMISTRY PHYSICS BOTANY ...

Statistics- Math

One student scored 54 on a math test for which the mean score was 50.5 and the standard deviation was 3.2. Another student scored 80 on a chemistry test for which the mean score was 75.2 and the standard deviation was 5.2. Which student (math or chemistry) had a "better" score...

chemistry

Please help!!! Desperate for answer!!!? Did the equation do not know the 2nd questions"s answers for the problems a) 2O3(g) = 3 O2(g) + heat (O3 IS UNDERLINED) [6.0x10-1] [0.21] b) 2 CO2 (g) + heat = 2 CO(g) +O2(g) (CO IS UNDERLINED) [0.103] [0.024] [1.18 x10-2] c) NO2(g) + O2...

chemistry

Table of enthalpy of solution for selected cesium salts Compound and ΔsolH kJ mol-1: - Cesium bromide: 25.98 - Cesium iodide: 33.35 - Cesium chloride: 17.78 - Cesium fluoride monohydrate: -10.46 - Cesium fluoride sesquihydrate (·1.5H2O): -5.44 Data taken from CRC ...

Chemistry Help! Thank you :)

Assuming the final solution will be diluted to 1.00 , how much more should you add to achieve the desired pH? Information: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.80. You have in front of you: 100 ml of 7.00×10−2 M HCl...

Chemistry

Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.70. You have in front of you * 100 mL of 6.00×10−2 M HCl, * 100 mL of 5.00×10−2 M NaOH, and plenty of distilled water. You start to add HCl to a beaker of water when ...

Chemistry

Chapter 3 41. How many significant figures are in each?

chemistry

What are the units for E minimum? with reference to what?

chemistry

why is CCl4 classified as a compound?

Chemistry

Is air a mixture or a coumpound?

Chemistry

Why air is classified as matter?

chemistry

What are some examples of a suspension?

chemistry

how can you find temperature of sodium?

chemistry

what is the exponent power of a liter??

Chemistry

Is there an equation for acid rain? What is it?

chemistry

the value of this quantity for water is ?

chemistry

what is produced when methane is burned ?

chemistry

convert 0.75 kilograms to milligrams

Chemistry

How many atoms of C are contained in 45.6g of C6H6?

chemistry

What is the hydroxide concentration if the hydronium is .03 M?

chemistry

how do you read this formula: 2Au2O3

chemistry

How do I figure out the mass of 1 M&M?

Chemistry

How many moles of CaCO3 are present in 30.6g of it ?

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