The answers to your questions:
1: B.
2: True
The Balanced Chemical Equation is as follow;
4 KO₂ + 2 CO₂ → 2 K₂CO₃ + 3 O₂
First find out the Limiting Reagent,
According to equation,
284 g (4 moles) KO₂ reacted with = 44.8 L (2 moles) of CO₂
So,
27.9 g of KO₂ will react with = X L of CO₂
Solving for X,
X = (44.8 L × 27.9 g) ÷ 284 g
X = 4.40 L of CO₂
Hence, to consume 27.9 g of KO₂ only 4.40 L CO₂ is required, while, we are provided with 29 L of CO₂, it means CO₂ is in excess and KO₂ is is limited amount, Therefore, KO₂ will control the yield of K₂CO₃. So,
According to eq.
284 g (4 moles) KO₂ formed = 138.2 g of K₂CO₃
So,
27.9 g of KO₂ will form = X g of K₂CO₃
Solving for X,
X = (138.2 g × 27.9 g) ÷ 284 g
X = 13.57 g of K₂CO₃
So, 13.57 g of K₂CO₃ formed is the theoretical yield.
%age Yield = 13.57 / 21.8 × 100
%age Yield = 62.24 %
Answer: The Taiga Forest
Explanation: I just took the test on e2020
Answer:
I'm sorry i do not speak spanish , so i dont understand.
Explanation:
do you know english
The three
states of matter are solid, liquid and gas phase. The solid has a more definite
shape and volume. The particles are locked into place. It cannot be further
compressed due to the bond that exists between the molecules. The kinetic
energy of the molecules is close to none because the molecules are so close and
so compact with each other. For liquids, it has a medium shape and volume. The
particles can move or slide past each other due to the small space available
for movement. It cannot be compressed further due to the repulsive forces that
acts between them. The kinetic energy is medium. For gases, it has no shape and
volume because the particles can move freely from one other. Their collisions
are rare due to the distance between them. The kinetic energy of the molecules
is high because there is room for movement. It can be compressed easily.