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docker41 [41]
3 years ago
11

16. The poisonous gases were not __ in the air

Chemistry
2 answers:
deff fn [24]3 years ago
5 0
  • The poisonous gases were not <u>visible</u><u> </u>in the air.

Svet_ta [14]3 years ago
5 0

Answer:

able to evaporate

Explanation:

gas is evaporated liquid...... the process cannot take place again

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238/93Np → 0/-1e + ?
diamong [38]

Answer:

looking for some pts

Explanation:

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3 0
3 years ago
8 Fe + Sg → 8 Fes<br><br> How many grams of FeS is produced from 0.3 mol Sg?
frozen [14]

Answer:

Explanation:

Molar ratio for Sg : FeS = 1:8

If there are 0.3 moles for Sg

Therefore, 0.3 × 8 =2.4 moles of FeS

Mass = Moles/ Mr

Mr of FeS = 56+32=88

So mass = 2.4/88

Mass= 0.027g

6 0
3 years ago
How do you define medium and high level profession?according to class 8?
abruzzese [7]

Answer:

Answer: medium level profession can be defined as some one who has moved past entry level but isn't nearing the end . whereas high level profession means a person has moved past entry level and also has reached the end.

3 0
3 years ago
Why there are only seven crystal systems??? why not other number
Anastasy [175]
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6 0
3 years ago
2C2H2 + 5O2 → 4CO2 + 2 H2O How many grams of CO2 are required to react with exactly 3.00 mol of O2? 106 g 132 g 165 g 76.8 g
cricket20 [7]

Hey there!:

Given the reaction:

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O

5 moles O2 ------------- 4 moles CO2

3.00 moles O2 ----------  ( moles of CO2 ?? )

moles of CO2 = 3.00 * 4 / 5

moles of CO2 =  12 / 5

moles of CO2 = 2.4 moles

So, molar  mass CO2 = 44.01 g/mol

Therefore:

1 mole CO2 -------------- 44.01 g

2.4 moles CO2 ---------- ( mass of CO2 )

mass of CO2 = 2.4 * 44.01 / 1

mass of CO2 = 106 g

Answer A


Hope that helps!

8 0
4 years ago
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