2 years ago

Question 13 of 25

Chemistry

1 answer:

DIA [1.3K]2 years ago

5 0

A) wafting the vapors toward your nose

You might be interested in

What new information can you add to your definition of chemical change?

ivolga24 [154]

Something that can not be undone. Like baking bread..cant be undone.

5 0

3 years ago

HELP MULTIPLE CHOICE QUESTION!!!! I HAVE A QUIZ!!!!

koban [17]

Answer:

A) not for 100%

Explanation:

sorry if it's wrong

7 0

3 years ago

8. Well-aerated soils have the _______________ smell of good soil.

Alborosie

Answer:

9 is clay, silt, sand in that order

Explanation:

4 0

3 years ago

Helium gas diffuses 4 times as fast as an unknown gas. What is relative molecular mass of the gas

Inessa05 [86]

The relative molecular mass of the gas : 64 g/mol

<h3>Further explanation</h3>

Given

Helium rate = 4x an unknown gas

Required

The relative molecular mass of the gas

Solution

Graham's Law

$\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }$

r₁=4 x r₂

r₁ = Helium rate

r₂ = unknown gas rate

M₁= relative molecular mass of Helium = 4 g/mol

M₂ = relative molecular mass of the gas

Input the value :

$\tt \dfrac{4r_2}{r_2}=\sqrt{\dfrac{M_2}{4} }\\\\16=\dfrac{M_2}{4}\\\\M_2=64~g/mol$

7 0

2 years ago

Which term is the symbol for pressure? A. [A] B. k C. R D. x + y E. None of the Above

Elanso [62]

I believe the answer to your question is none of the above

5 0

2 years ago