For which of the following activities might you want to hire a chemist?

testing a sample of water from a well

finding a comet

examining the structure of plant cells

building a garage

What happens to the temp of the liquid in a cup if water as some of the water evaporates

Which of the following statements is/are true? For the false statements, correct them. (A) All particles in the nucleus of an atom are charged. (B) The atom is best described as a uniform sphere of matter in which electrons are embedded.

Which participates in chemical reactions? electrons protons neutrons gamma rays

Describe at least two advantages and two disadvantages of using coal as a source of energy

What's 5 type of energy

A burning match is an example of a chemical change phase change nuclear change physical change

The table below shows the shapes of two samples, C and D, when placed in three containers of different shapes.

How many grams of KCl are produced when 60 grams of K are reacted?

Whats a solution! people

How do compounds affect an atom's stability