Chemistry, 01.03.2021 02:20 glitterpanda2468

***Plz help me I’m really struggling with them. I will give brainlists for the right answers •2KCIO3 → 2KCI+ 302
What volume of oxygen gas (O2) does 30.0 grams of potassium chlorate (KCIO3) produce at STP based on the equation shown?

A)8.23 L
B)4.63 L
C)9.98 L
D)1.16 L

•What is the mass of 14.6 L of CO 2 (g) at STP?
A)31.1 g
B)49.0 g
C)13.4 g
D) 28.7 g

•Zn+2HCl H 2 +ZnCl 2

how many of hydrogen gas (H2 ) will be produced if 31.2 g of zinc allowed to react with excess hydrochloric acid?
A)10.7L
B)2.82 L
C)9.66 L
D)4.30 L

Answers: 3

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