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makvit [3.9K]
3 years ago
8

37)

Chemistry
1 answer:
Natali [406]3 years ago
7 0

Answer:

dont know

Explanation:

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Need help please?!!!!!​
puteri [66]

(a) 33.6 L of oxygen would be produced.

(b) 106 grams of  Na_2CO_3 would be needed

<h3>Stoichiometric calculations</h3>

1 mole of gas = 22.4 L

(a) From the equation, 2 moles of KClO_3 produce 3 moles of O_2. 1 mole of  KClO_3 will, therefore, produce 1.5 moles of  O_2.

1.5 moles of oxygen = 22.4 x 1.5 = 33.6 L

(b) 22.4 L of CO_2 is produced at STP. This means that 1 mole of the gas is produced.

From the equation, 1 mole of  CO_2 requires 1 mole of Na_2CO_3.

Molar mass of  Na_2CO_3 = (23x2)+ (12)+(16x3) = 106 g/mol

Mass of 1 mole  Na_2CO_3 = 1 x 106 = 106 grams

More on stoichiometric calculations can be found here: brainly.com/question/27287858

#SPJ1

6 0
2 years ago
Describe reflection, refraction, and absorption.
Sergeeva-Olga [200]

Answer:

Refraction is the bending of a wave when it enters a medium where its speed is different, like going from the air (gas) to a glass of water (liquid). Absorption is when light energy penetrates an object. Typically this energy is then converted to heat.

7 0
3 years ago
What would you observe when zinc is added to solutions of iron II sulphate? write the chemical reaction that takes place.​
kompoz [17]

Answer:

When zinc is added to the solution of iron sulphate, the colour of iron sulphate solution changes. It is because zinc is more reactive than iron, it displaces iron from its solution of iron sulphate and a grey precipitate of iron and a colourless solution of zinc sulphate is formed.

Explanation:

Zn(s) + FeSO4(aq) -----> ZnSO4(aq) + Fe(ppt.)

8 0
3 years ago
List the three principal states of matter, give two examples of each
icang [17]

matter can take be one of the three states which are; (Solid, Liquid, Gas)

Think about water, it can be a Solid (Ice) a Liquid (not frozen obviously) and a Gas (when it evaporates)

7 0
3 years ago
What do particles in solids, liquids, and gases have in common? How are they different?
Leona [35]
They all are made up with something to get their form is how they are all alike. how they are different is on is a solid where is is still an the next is liquid an it is like solid but moves and gas is nothing but like air we breath. hope this helps...
4 0
3 years ago
Read 2 more answers
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