Witch substance is a combination of different atoms

A - homogeneous mixture

B - heterogenous mixture

C - element

D - compound

At 100°C, the Kw of water is 5.6x10-13. What is the pOH of a solution that has a pH of 6.25 at 100°C? A) 6.00 B) 6.25 C) 7.00 D) 7.75 E) 8.00

How many molecules does oxygen have?

What is the particle of an atom that moves rapidly in a cloud like region around the nucleus

Radar uses radio waves to detect objects. It works by bouncing waves of objects to determine their location, size, and speed. For which of the following purposes do meteorologists use Doppler radar?

The concentration of H + ions in a solution is 1.0 * 10-11 M, What is the pH of the solution?

An unknown gas has a pressure of. 0240 atm. what is the pressure in torr?

Explain why a wooden spoon is a better choice than a metal spoon for stirring a boiling pot of soup

Is MgCO3 a correct chemical formula

Water is an exaple of a mixture because it is made up of hydrogen and oxygen atoms bonded together true or false

Chlorine plus lithium bromide