3 years ago

What is the pressure of nitrogen in atmospheres of a sample that is at 745 mmHg?

1 answer:

6 0

<span>The pressure of nitrogen in atmospheres of a sample that is at 745 mmHg- n2= .780 atm because 78 (from the 78%) 78/100=0.78.</span>

You might be interested in

Why is melting an ice cube a reversible physical change?

Dmitriy789 [7]

Answer:

Because you can freeze the water you melted back into a ice cube.

Explanation:

7 0

3 years ago

Jordan needs to repeat the experiment but his teacher says that he needs to improve his design in his second experiment what sho

Margarita [4]

Just add more detail in the second experiment explain every little thing.

8 0

3 years ago

Read 2 more answers

How does thermal energy flow?

mart [117]

My answer is....A

sorry if im wrong

6 0

3 years ago

Atoms of the same element can have different forms; for example, carbon-12 and carbon-14.

cricket20 [7]

A carbon-12 atom has 6 protons (6P) and 6 neutrons (6N). But some types of carbon have more than six neutrons. We call forms of elements that have a different number of neutrons, isotopes. For example, carbon-14 is a radioactive isotope of carbon that has six protons and eight neutrons in its nucleus.
Hope that helps

5 0

3 years ago

compound 1 contains 15.0g of hydrogen and 120.0g oxygen. What is the percent compound of each element?

allsm [11]

Note down the formula below

$\boxed{\sf Mass\%\;of\; element=\dfrac{Mass\:of\:the\: element}{Mass\;of\:the\: compound}\times 100}$