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svp [43]
2 years ago
5

How many grams are in 4.00 moles of Cr2O3?

Chemistry
1 answer:
lisabon 2012 [21]2 years ago
8 0

Answer:

607.9616 grams

Explanation:

Hope this helped!!

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Describe some acidic oxides that can be prepared by thermal decomposition of nitrates and carbonates
azamat

When calcium carbonate is heated, it breaks down to form calcium oxide and carbon dioxide.

Thermal decomposition is the process in which heat is required.

It is also known as thermolysis.

It is processed in which a compound breaks into two or more products when the heat is supplied.

This reaction is used for the production of oxygen.

This reaction is also used for production of acidic as well as basic oxides.

CaCO3 on thermal decomposition gives:

CaCO3→CaO+CO2

CaO→ Basic oxide.

CO2→ Acidic oxide.

6 0
3 years ago
NaBr + CaF2 → NaF + CaBr2 What coefficients are needed to balance the chemical equation? A) 1,1,1,1 B) 1,2,1,2 C) 1,2,2,1 D) 2,1
elena-s [515]
D.
2NaBr + CaF2 --> 2NaF + CaBr2 gives you:

2Na                        2Na
2Br                         2F
1Ca                         1Ca
2F                           2Br

This is balanced.
7 0
3 years ago
Read 2 more answers
Mercury can be obtained by reacting mercury(I) sulfide with calcium oxide. How many grams of calcium oxide are needed to produce
OLga [1]
First, 55 g of Hg is 3.65 moles because one mole of Hg has a molar mass of 200.59

Then, the mole ratio of Hg to CaO is 8:4 or 2:1. SO we divide 3.65 by 2 to get 1.82 moles of CaO

This is the same as 102.06 grams because one mole of CaO has a molar mass of 56.0774

Hope this helps!
4 0
3 years ago
Self registering thermometers:
son4ous [18]

Answer:

record only the maximum and minimum temperatures they are exposed to

4 0
2 years ago
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When the equation below is balanced, what is the coefficient for oxygen?<br> C3H8+O2=CO2+H2O
Nataly [62]
Se for no balanceamento e 5. 
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3 years ago
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