youngredhead youngredhead

12-06-2017
Chemistry

contestada

The percent by mass of copper in CuBr2 is Use mc004-1.jpg. 28.45%. 44.30%. 63.55%. 71.55%.

Respuesta :

scme1702 scme1702

19-06-2017

First, we must find the total mass of CuBr₂:
Mass = 64 + 2 x 80
Mass = 224

Percentage mass of copper = mass of copper x 100 / total mass
Percentage mass of copper = (64 / 224) x 100
Percentage mass of copper = 28.45%

Answer Link

mnicolehernand mnicolehernand

15-09-2018

i believe it is A on e2020

Answer Link

Otras preguntas

Describe the relationship between temps tyre and kinetic energy

If you are saying one for a girl is it una? If a dog is a girl is is perra? Or do they stay masculine?

Which group supported declaring war against England in 1812?

What's one similarity between the Mayans and ancient Egyptians was?

What is the least amount of time you should stay in your target heart rate?

which form of government would have the least amount of citizen participation? out of a)democracy b)oligargy c)autocracy d)confederation

There are 5280 feet in a mile. How many inches are in 2 miles

Which side did Native American groups choose during the Revolutionary War?

Supporters of using the atomic bomb against Japan believed it would

What is the length of stack J M with bar on top space in the rectangular prism? Round your answer to the nearest tenth. A. 20.0 cm B. 21.5 cm C. 23.3 cm D.