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Maksim231197 [3]
3 years ago
11

Which is a strategy for preventing household fires?

Chemistry
1 answer:
Pani-rosa [81]3 years ago
6 0

Answer:

b

Explanation:

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If 13.7 grams of manganese oxide reacts with excess hydrogen chloride gas, how many grams of water are formed?
Lerok [7]

Answer:

5.67 g OF WATER WILL BE FORMED WHEN 13.7 g OF MnO2 REACTS WITH HCl GAS.

Explanation:

EQUATION FOR THE REACTION

Mn02 + 4HCl --------> MnCl2 + Cl2 + 2H2O

From the balanced reaction between manganese oxide and hydrogen chloride gas;

1 mole of MnO2 reacts to form 2 mole of water

At STP, the molecular mass of the sample is equal to the mole of the substance. So therefore:

(55 + 16 * 2) g of MnO2 reacts to form 2 * ( 1 *2 + 16) g of water

(55 + 32) g of MnO2 reacts to form 2 * 18 g of water

87 g of MnO2 reacts to form 36 g of water

If 13.7 g of MnO2 were to be used?

87 g of MnO2 = 36 g of H2O

13.7 g of MnO2 = ( 13.7 * 36 / 87) g of water

= 493.2 / 87 g of water

Mass of water = 5.669 g of water

Approximately 5.67 g of water will be formed when 13.7 g of manganese oxide reacts with excess hydrogen chloride gas.

3 0
3 years ago
Hell me with this ASAP please
Hatshy [7]

Answer:

Losing 2 valence electrons

Gaining 2 electrons

3 0
3 years ago
What is the charge of the nucleus in an Adam of oxygen -17
Ivenika [448]
Charge of nucleus is always positive whether it is element or isotope.
5 0
3 years ago
which of the following describes a similarity between a liquid and gas A. both are forms of heat are used to warm objects. C. bo
Leona [35]

Answer:

It's A

Explanation:

Liquid can heat things and so can steam.

8 0
3 years ago
Is this correct?<br> Plz answer ASAP!
Angelina_Jolie [31]

YES IT'S @LL CORRECT

3 0
3 years ago
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