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anastassius [24]
2 years ago
11

CaCO2=CaO + CO₂ How do I balance this equation?

Chemistry
2 answers:
otez555 [7]2 years ago
5 0
2CaCO2–>2CaO+CO2
2 Calciums on both sides, 2 Carbons on both sides, and 4 Oxygens on both sides.
7nadin3 [17]2 years ago
4 0

Answer:

2CaO + 2CO2 → 2CaCO2 + O2 is right

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PLEASE HELP! (IM GIVING BRAINLIEST) Iron is a transition metal and, as such, can form two types of "oxide" salt compounds, FeO a
belka [17]

Answer:

See explanation

Explanation:

Iron exhibits two stable oxidation states, +2 and +3 states. The difference between FeO and Fe2O3 is that, in FeO, Fe is in the +2 oxidation state while in Fe2O3, Fe is in the +3 oxidation state

In FeO, iron looses two electrons which are gained by oxygen as follows;

Fe^2+ + O^2- -----> FeO

In Fe2O3, Fe looses six electrons while oxygen has gained six electrons as shown;

2Fe^3+ + 3O^2- ------>Fe2O3

7 0
2 years ago
If the smallest markings on a ruler are one tenth (1/10) of a centimeter, which of the following measurements could be recorded
makkiz [27]
I think it should be A 
4 0
3 years ago
Read 2 more answers
2CO(g)+O2 (g) =2CO2(g)
Ronch [10]

Answer:

6.76 moles.

Explanation:

2CO(g)+O2 (g) =2CO2(g)

When 2 CO mols were reacted with excess O2 then 2 mols of CO2 is created.

Therefore if 6.76 moles reacted, same number of CO2 will be created.

4 0
3 years ago
There are 1.204 x 10^24 atoms of oxygen. How many moles is this?
Nastasia [14]

Answer:

7.25 x 10^47

Explanation:

1.204 x 10^24 moles*6.022 x 10^23 avogadro's number= 7.25 x 10^

7 0
3 years ago
What is evaporation? Describe what happens at the molecular level during evaporation.
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6 0
3 years ago
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