monilchikani2022 monilchikani2022

01-03-2021
Chemistry

contestada

How many moles of potassium are needed to react completely with 7.50 mol of chromium (III) oxide? Show work.

Respuesta :

achirita777 achirita777

01-03-2021

Answer:

45 mol

Explanation:

First you need to balance the equation:

6K + Cr2O3 = 3K2O + 2Cr

the proportion of the coeficients of potassium and chromium oxide is 6 to 1 so we need to multiply 7.5 by 6 to get 45.

Answer Link

Otras preguntas

How do the themes of "A Psalm of Life" and "Auspex" differ?

Thirteen-year-old Donette is extremely self-conscious. She believes she is the focus of everyone else’s attention and concern. Donette is experiencing a cogniti

‘It may be cold up North, but down in the Gulf they are fishing—scudding among the Florida Keys in a little white sailboat, landing for lunch on a strand as sno

A man lifts a 25.9 kg bucket from a well and does 5.92 kJ of work.The acceleration of gravity is 9.8 m/s^2 . How deep is the well? Assume that the speed of the

Monochromatic light of a given wavelength is incident on a metal surface. However, no photoelectrons are emitted. If electrons are to be ejected from the surfac

A 47-year old man presents with severe pain in his right great toe. He is unable to bear weight on his right foot and there was no apparent trauma. He reports t

What is 3-2x>-5 in an inequality form

Which of the following numbers can be expressed as repeating decimals? (5 points) 5 over 7 , 4 over 5 , 7 over 9 , 5 over 8

The increase in the number of older Americans has created a growing demand for nursing homes, health care, continuing education and more. This is as a result of

7. A stick of length L and mass M is hanging at rest from its top edge from a ceiling hinged at that point so that it is free to rotate. Find the distance from