☰ 🔍
🖊️Ask a Question
Electrical Engineering

Mass percentage of carbon in CO2 is approximately: w) 37.5% x) 27.3% y) 75% z) 45%

by 0 views
Mass percentage of carbon in CO2 is approximately: w) 37.5% x) 27.3% y) 75% z) 45%
0 like 0 dislike

1 Answer

by
ANSWER: X -- 27.3%
0 like 0 dislike

Related questions

by anonymous asked Mar 10, 2021 0 views
The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%

The percent composition by mass of copper in anhydrous cupric sulfate is about: w) 10% x) 25% y) 40% z) 75%
Answer : ANSWER: C -- 40% ...

View solution
0 like 0 dislike
1 answer
by anonymous asked Mar 12, 2021 0 views
What percentage of the earth's water is fresh water? w) 50% x) 22% y) 7% z) 3%

What percentage of the earth's water is fresh water? w) 50% x) 22% y) 7% z) 3%
Answer : ANSWER: Z -- 3%...

View solution
0 like 0 dislike
1 answer
by anonymous asked Mar 11, 2021 0 views
What percentage of the earth's atmosphere does O2 comprise? w) 75% x) 50% y) 21% z) 32%

What percentage of the earth's atmosphere does O2 comprise? w) 75% x) 50% y) 21% z) 32%
Answer : ANSWER: Y -- 21%...

View solution
0 like 0 dislike
1 answer
by anonymous asked Mar 12, 2021 0 views
The density of lead is 12 grams per cm3. A lead brick has a mass of 1.5 kilograms. Its dimensions are 10 cm by 5 cm by 4 cm. Is it: w) More than 75% hollow x) Between 50 and 75% hollow y) Between 25 and 50% hollow z) Between 0 and 25% hollow

The density of lead is 12 grams per cm3. A lead brick has a mass of 1.5 kilograms. Its dimensions are 10 cm by 5 cm by 4 cm. Is it: w) More than 75% hollow x) Between 50 and 75% hollow y) Between 25 and 50% hollow z) Between 0 and 25% hollow
Answer : ANSWER: Y -- BETWEEN 25 AND 50% HOLLOW...

View solution
0 like 0 dislike
1 answer
by anonymous asked Mar 7, 2021 5 views
What percentage of the atmosphere consists of carbon dioxide? Is it approximately: a) .03% (read: three-hundredths of a percent) b) 1% c) 5% d) 7%

What percentage of the atmosphere consists of carbon dioxide? Is it approximately: a) .03% (read: three-hundredths of a percent) b) 1% c) 5% d) 7%
Answer : ANSWER: A -- .03%...

View solution
0 like 0 dislike
1 answer

50.5k questions

47.1k answers

240 comments

7.0k users

© 2025 Question Answer