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Artyom0805 [142]
3 years ago
13

The thermochemical equation for the reaction in which calcium carbonate breaks down is shown below. how can the reaction be desc

ribed?
Chemistry
1 answer:
mariarad [96]3 years ago
4 0
Answer is: chemical decomposition or <span>analysis.

Balanced chemical reactio: CaCO</span>₃(s) → CaO(s) + CO₂(g).
CaCO₃ is calcium carbonate.
<span>CaO is calcium oxide.
CO</span>₂ is carbon (IV) oxide or carbon dioxide.
Chemical decomposition is the separation of a single chemical compound (in this example calcium carbonate)<span> into its two or more simpler compounds (in this example calcium oxide and carbon dioxide).</span>
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When I googled how to balance this chemical equation K2CrO4+NaHSO3+H2O=NaHSO4+KOH+Cr(OH)3 they gave me the balanced form of 2K2C
galina1969 [7]
Whatever is on one side of the equation needs to be the same as the other. So K2CrO4+NaHSO3+H2O=NaHSO4+KOH+Cr(OH)3 you need to balance the equation between the = to make a balanced equation.
3 0
3 years ago
What is the mass of H2O produced when 14.0 grams of H2 reacts completely with 2.0 grams of O2?
Vladimir79 [104]
Balanced chemical equation:

2 H2 + 1 O2 = 2 H2O

4 g H2  -------> 32 g O2 -----------> 36 g H2O
   ↓                       ↓                             ↓
14.0 g ---------> 2.0 g O2 ----------> mass H2O ?

32 * mass H2O = 2.0 * 36

32 * mass H2O = 72

mass of H2O = 72 / 32

mass of H2O = 2.25 g

hope this helps!.


4 0
3 years ago
Chlorine (Cl) is 76% chlorine-35 and 24% chlorine-37. Determine the average atomic mass of chlorine. Show/Explain work.
Flura [38]

Answer:

Average atomic mass of chlorine is 35.48 amu.

Explanation:

Given data:

Percent abundance of Cl-35 = 76%

Percent abundance of Cl-37 = 24%

Average atomic mass = ?

Solution:

Average atomic mass  = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (76×35)+(24×37) /100

Average atomic mass =  2660 + 888 / 100

Average atomic mass  = 3548/ 100

Average atomic mass = 35.48 amu

Average atomic mass of chlorine is 35.48 amu.

4 0
3 years ago
The picture below shows Enchanted Rock, a pink granite rock formation located in the Llano Uplift ecoregion. This land is most l
Katyanochek1 [597]

Answer:

what are the answers?

Explanation:

Probably going to be c for this, until the answers you choose are shown. very very sorry :c

5 0
3 years ago
In the diagram below, west is to the left, east is to the right, and the observer is looking toward the north. What is the direc
Damm [24]
I think the answer is c since the it’s looking at NW, the wind is coming from SE
7 0
2 years ago
Read 2 more answers
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