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dolphi86 [110]
3 years ago
8

Identify the correct statements

Chemistry
1 answer:
Illusion [34]3 years ago
4 0

Answer:

D. The mass ratio of oxygen to carbon in CO is twice the mass ratio of oxygen to carbon in CO2

Explanation:

Mass of Oxygen in 1 mole of substance = 16g

Mass of carbon in 1 mole of the same substance = 12g

Ratio of O : C = 12/16

= 1 : 0.75

Mass of oxygen in O2 = (16*2) = 32 g

Mass of carbon = 12 g

Mass ratio of O2 : C

= 32 : 12

= 12/32

= 1 : 0.375

From the calculations above, The mass ratio of oxygen to carbon in CO is twice the mass ratio of oxygen to carbon in CO2.

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Ad libitum [116K]

Answer:

A.

Explanation:

zinc and hydrochloric acid reacts to form zinc chloride and hydrogen.

hope it helps. :)

7 0
3 years ago
In the following reaction, how many grams of silver can be produced from 49.1 g copper?
notsponge [240]

166.4 g Ag grams of silver can be produced from 49.1 g of copper.

<h3>What is a mole?</h3>

A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.

1 mol Cu + 2 mol AgNO_3 → 2 mol Ag + 1 mol Cu(NO3)2

63.55 g Cu —> 2 x 107.688 g Ag

63.55 g Cu gives 215.376 g of Ag

So, 49.1 g Cu —> \frac{215.376 g X 49.1 g}{63.55 g}

= 166.4 g Ag

Hence, 166.4 g Ag grams of silver can be produced from 49.1 g of copper.

Learn more about moles here:

brainly.com/question/26416088

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5 0
2 years ago
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viktelen [127]

Answer:

8. c

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Explanation:

8 0
3 years ago
When a compound donates (loses) electrons, that compound becomes oxidized. Such a compound is often referred to as an electron d
rjkz [21]

Assuming this is a true or false question, the answer would be True

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Nataly [62]

Answer:

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