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

What conditional statement is represented by the Venn diagram below

If an Inca man did not marry by age twenty,___.

How is the cross-section of a sphere different than the cross-section of a cone?

What effect did Napoleon's invasion of Spain have on Latin America? A. Latin American leaders became weaker B. Latin American leaders demanded independence C. S

HURRY ANSWER THIS AND I WIL GIVE YOU BRAINLEST!!!! Malia solved an equation, as shown below: Step 1: 6x = 48 Step 2: x = 48 – 6 Step 3: x = 42 Part A: Is Malia'

General formula for double replacement reaction

the price p of a new house minus 20% down payment

What medium do seismic waves travel through?

A club rent a bus for a trip the cost c in dollars that each person pays to cover the cost of the bus varies inversely with the number of people p who go on the

What name was given to the side of World War I that the United States eventually joined? A. The Allies B. The Central Powers C. The Patriots D. T