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Setler [38]
3 years ago
14

Which of the following is the correct expression for the rate of the following reaction

Chemistry
1 answer:
iris [78.8K]3 years ago
7 0
B. 
<span>[H2O] / [H2S]  is the correct answer</span>
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How many molecules are there in 79g of Fe2O3? how many atoms is this?
Leya [2.2K]
There are approximately 160 grams in 1 mol of Fe2O3 molecules. Therefore, there would be 79/160= 0.49375 mols of Fe2O3 molecules in 79 grams. There are 5 atoms in total for each molecule of Fe2O3, therefore 79/160 * 5 = 79/32 = 2.46875 mols of atoms.
4 0
3 years ago
Which of the following is a mixture steel water oxygen or gold
MAXImum [283]
Steel is an alloy and consists of more than one element (mainly iron and carbon), therefore steel is a mixture.
7 0
3 years ago
C. 49.8 grams of ki is dissolved in enough water to make 1.00 l of solution. what is the molarity?
taurus [48]

Hey There!:


Molar Mass KI => 166.003 g/mol


* number of moles:


n = mass of solute / molar mass


n = 49.8 / 166.003


n = 0.3 moles KI


Therefore:


M = n / V


M = 0.3 / 1.00


M = 0.3 mol/L


hope this helps!

7 0
3 years ago
Read 2 more answers
Can anyone please help me!! What is d. Beat the eggs?? A physical or a chemical change?
Stells [14]

Answer:

physical change

Explanation:

im not 100% but thats what i would pick because all you are doing is changing the state they are in. the eggs arnt chemically changing at all. i think ur overthinking it

6 0
3 years ago
Find the number of moles of water that can be formed if you have 230 mol of hydrogen gas and 110 mol of oxygen gas
Verdich [7]

Answer:

220mol.

Explanation:

Water is H2O. Hydrogen gas is H2. Oxygen gas is O2. You have 220mol of O and 460mol of H. O is the limiting reactant. The ratio O:H2O is 1:1. 220*1=220

3 0
3 years ago
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