tthall7188 tthall7188

04-04-2018
Chemistry

contestada

What is the oxidation number of chromium in k2cr2o7?

1.

ï¿¼

+12

2.

ï¿¼

+2

3.

ï¿¼

+3

4.

ï¿¼

+6?

Respuesta :

WaleMaths WaleMaths

05-04-2018

K₂Cr₂O₇

(+1*2) + (x*2) + (-2*7)

2 + 2x - 14 = 0
2x - 12 = 0

2x = 12

x = 12/2

x = +6...

Answer Link

Otras preguntas

Which statement best describes Mughal emperor Babur? O A. Babur eliminated taxes on Hindus living within the Mughal Empire and promoted religious freedom. O B.

Modifications to increase the surface area of the small intestine include all of the following except a. villi b. circular fluids c. duodenal glands d. microvil

What act was the US upholding when they joined South Korea in fighting the war against North Korea?

Solve y = x + 6 for x.

Dr. Roberts with the Mayo Clinic conducted a study on individuals between the ages of 70–89 and found differences in men and women. In this example, gender of p

can someone help me asap?????

Find the product of (x + 5)(x − 5). x2 − 10x + 25 x2 + 10x + 25 x2 − 25 x2 + 25

If angle B measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units

How is cancer related to cell division? A. Cancer cells are not related to cell division. B. Cancer cells continue to divide forever, with no limit. C. Cancer c

Use a property of equality to solve this equation: 4.5x = 18