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dangina [55]
3 years ago
10

Question number 2.........

Chemistry
1 answer:
Rina8888 [55]3 years ago
8 0
Question number 3..........
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C8H10N4O2 is the chemical formula for caffeine. List the 3 remaining elements in caffeine and how many atoms of that element are
velikii [3]
No idea , sorry. maybe it is.....actually i dont know, sooo sorry
7 0
3 years ago
Problem 3.100 a chemical plant uses electrical energy to decompose aqueous solutions of nacl to give cl2,h2, and naoh: 2nacl(aq)
chubhunter [2.5K]

First we calculate the number of moles of Cl2, that is:

moles Cl2 = 1.5*10^10 grams/71 grams/mol = 211267605.633802817 mol = 2.1 * 10 ^ 8 mole = x <span>

So that based on stoichiometry, the number of moles of NaOH = 2x and that of H2 = x mol 

mass of NaOH = 4.2*10^8 * 40 =168*10^8 grams = 1.68 * 10^6 kg = 1.68 metric tons 

<span>mass of H2 = 2.1*10^8 * 2 = 4.2*10^8 grams = 0.042 * 10^6 kg = 0.042 metric tons.</span></span>

4 0
3 years ago
Could gold form a diatomic molecule?
olasank [31]
I think so. You should check the Periodic Table. ;-)
3 0
3 years ago
Classify the following reaction according to the five basic reaction types:
joja [24]

Answer:

a. single replacement

Explanation:

Chemical equation:

Cd + H₂SO₄    →    CdSO₄ + H₂

In given reaction Cd replace the hydrogen and form cadmium sulfate and hydrogen gas.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Other options are incorrect because,

Combustion:

In combustion reaction substances are burn in the presence of oxygen and form carbon dioxide and water.

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B  →  AB

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AC +BD

8 0
3 years ago
What is the electron configuration of chlorine (cl)?
bezimeni [28]
Chlorine is element number 17, so the electron configuration must be:

2,8,7
4 0
4 years ago
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