4. Which of the following statements correctly describe atoms? Select all that apply.

A) Atoms have mass,

B) Atoms are the basic unit of a chemical element.

C) Matter is made of atoms.

D) Atoms take up space.

What type of mixture scatters light and cannot be filtered

What are the similarities between low mass stars and high mass stars

When air moves upward to áreas of less air pressure what ofen forms

What is an easy way to find oxidation numbers?

Bohr model worksheet

When electricity flows through a wire which of the following appears? Question 6 options: Gravitational Field Magnetic Field

Which of the following statements are correct about the chemical reaction? H2 + O2 - > H2O2 versus 2 H2 + O2 - > 2 H2O? They are both balanced chemical equations. The two reactions are equivalent. The laws of thermodynamics apply to both.

Explain how you would convert the moles of a compound to the made (grams) of the same compound

Which is the best definition of activation energy? O the energy required to end a chemical reaction O the energy required to bind a substrate to an active site O the energy required to form or break the bonds of reactant molecules O the energy

A chemist wants a 0.100 m solution of naoh. She has 0.0550 mol naoh available. What volume of solution is needed to make the mixture?