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

What is an equation of the line that passes through the points (-4, -6) and (4, 4)?

3. What problem does Gabriel have with his parents? 1His parents don't understand the cause of Yellow Fever and are not allowing Gabriel to leave the house. 2

WHAT ID BBC PLZ HELP

C. directions: read the given situations and fill in the grid below by identifying the elements of communication

Help me please I will give anyone that answer it

A grocery store offers a 10% discount on your entire purchase when you spend more than $50. You have $117 to spend on groceries and the cost of the groceries in

In your reactions, you diluted the provided stock concentration of ADH for your alcohol. Calculate the actual ADH concentration in mg/mL used in each of your re

A construction crew is digging a hole on the first day they dug a hole 3 feet deep on the second day they dug two more feet on the third day they dug four more

HELPPPPPPP ASAPPPPPP #6 PLEASEEEEE

Which of the following factors can limit photosynthesis by being either too high or too low?a.Lightc.Oxygenb.Carbon dioxided.TemperaturePlease select the best a