galvansereena galvansereena

04-06-2021
Chemistry

contestada

If 81g of water is measured out, how many moles are in the sample? *
A. 4
B. 5
C. 2.5
D. 4.5

Respuesta :

unknown767 unknown767

05-06-2021

Answer:

D

Explanation:

because moles = mass /mr

so 81/18(mr of H2O=2+16)

moles =4.5

hope this helps:)

Answer Link

Otras preguntas

The government of Country C has passed a law protecting the physical safety of factory workers. This is an example of

area of low pressure where air masses meet and rise

What does it mean to say that mutation is the ultimate source of genetic variation?

Why did the U.S. join the fighting in World War 1 ?

Which property of water molecules explains the other properties

Harvey collects marbles. He has 112 marbles. Each tray holds an equal number of marbles. If he uses 7 trays to hold all of the marbles, how many marbles will he

hurry math 20 points help

After grabbing electrons, oxygen combines with protons (also known as hydrogen ions) to form ___________. question 11 options: carbon dioxide glucose water sucr

Convert 4 7 8 to a decimal using long division.

Could you please Factor 12 + 16