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Deffense [45]
2 years ago
9

QUESTION 20

Chemistry
1 answer:
Assoli18 [71]2 years ago
5 0

Answer:

49.56

Explanation:

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2CO (g) + O2 (g) → CO2 (g)<br><br> How many grams of O2 are needed to react with 6.64 L of CO2?
allsm [11]

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3 years ago
How many grams of hcl can be produced from the reaction of 23 moles of h2 and 875g of cl2?
max2010maxim [7]

Answer: 899 g

Explanation:

Since the mass of a mole of diatomic chlorine is about 70.9 g/mol, this means that 875 grams is about 875/70.9 = 12.3 mol.

Hence, we know that chlorine is the limiting reactant, and that about 12.3 moles of chlorine will be consumed.

This means that 12.3(2)=24.6 grams of HCl will be produced, which will have a mass of about (24.6)(36.46)=899 g

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2 years ago
A double replacement reaction can be best described as a reaction in which
ExtremeBDS [4]
<h3>Answer </h3>

Option C= ions are exchanged between two compounds.

<h3>Explanation </h3>

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. For example,

                                    Na2S + 2HCl → H2S + 2NaCl

Option D is incorrect because electrons are exchanged between the atoms in oxidation –reduction reactions.


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What is the importance of standardization in chemistry​
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