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Arisa [49]
2 years ago
15

When hydrochloric acid is poured on limestone, the mixture fizzes, releasing a colorless, odorless gas. The equation for this ch

emical reaction is located below. What is the identity of the gas?
CaCO3(s) + 2 HCl(aq) ---> CaCl2(aq) + CO2(g) + H2O(l)

Select one:
a. CaCl2
b. CaCO3
c. CO2
d. H2O​
Chemistry
1 answer:
ruslelena [56]2 years ago
7 0

Answer:

pretty sure its B

Explanation:

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Answer A

x-ray optical telescope.

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3 0
3 years ago
Why couple should use a method of birth control
Tresset [83]

Answer:

because it will control the birth of a child which can happen alot being overpopulated in the country or world. It also can mange their life and create a small and happy and healthy family.Also the child can get more love and support from their parents if they have less children and it wont be a taruma for the couple as well.  because growing a child can be expensive time costly and really hard.

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3 0
3 years ago
if 11.74 liters of gas at STP are pumped into a basketball, how many moles of gas are in the basketball? assume the basketball w
ser-zykov [4K]

Answer:

0.52 mol

Explanation:

Using the general gas equation formula:

PV = nRT

Where;

P = pressure (atm)

V = volume (Liters)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

At STP (standard temperature and pressure), temperature of a gas is 273K, while its pressure is 1 atm

Using PV = nRT

n = PV/RT

n = (1 × 11.74) ÷ (0.0821 × 273)

n = 11.74 ÷ 22.41

n = 0.52 mol

There are 0.52 moles in the basketball

6 0
3 years ago
Complete the sentences to explain your reasoning.
tangare [24]

Answer:

I need the columns to do the question

Explanation:

3 0
3 years ago
This chemical equation is not balanced. Which element is not conserved?
ch4aika [34]

Answer: CI

Explanation:

4 0
3 years ago
Read 2 more answers
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