Can y'all tell me what's an atom and a mole

What is electronegativity and how does it affect interactions between water molecules?

When does a cold front develop? when a cold air mass invades a warm air mass when two masses of warm air meet when two masses of cold air meet when a warm air mass invades a cold air mass

To investigate the relationship between enzyme activity and substrate concentration, a student is supposed to prepare a reaction solution containing 0.25% substrate. instead, the student prepares a reaction solution containing 0.025% substrate.

How is a compound different from an element?

How can I find the answer for this?

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

In which group do all atoms have seven valence electrons in the ground state?