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Levart [38]
3 years ago
10

Pls help me First person to Ans correctly will get branliest

Chemistry
2 answers:
Virty [35]3 years ago
6 0

Answer:

I think we should heat for it to decompose

Explanation:

when decomposed KCO3 becomes potassium carbonate water and co2

nignag [31]3 years ago
5 0

Answer:

do it by yourself 6637373

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A cylinder of compressed gas has a volume of 350 ml and a pressure of 931 torr. What volume in Liters would the gas occupy if al
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Answer:

0.384\ \text{L}

Explanation:

P_1 = Initial pressure = 931 torr = 931\times \dfrac{101.325}{760}=124.12\ \text{kPa}

P_2 = Final pressure = 113 kPa

V_1 = Initial volume = 350 mL

V_2 = Final volume

From the Boyle's law we have

P_1V_1=P_2V_2\\\Rightarrow V_2=\dfrac{P_1V_1}{P_2}\\\Rightarrow V_2=\dfrac{124.12\times 350}{113}\\\Rightarrow V_2=384.44\ \text{mL}=0.384\ \text{L}

The volume the gas would occupy is 0.384\ \text{L}.

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8 0
3 years ago
If excess ammonium sulfate reacts with 20.0g of calcium hydroxide how many grams of ammonia are produced
bagirrra123 [75]
The reaction between ammonium sulfate and calcium hydroxide is given below. 
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In stars helium atoms are used with hydrogen atoms in order to produce energy.
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What is altered by a catalyst?
JulsSmile [24]

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Explanation:

Your answer is in this

7 0
3 years ago
Read 2 more answers
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