Which of the following is true about waves?

A.

They always move matter.

B.

They are always visible.

C.

They carry energy.

D.

They can only travel though outer space.

What is the main reason cells are replaced in the body? A The cells are too large. B The cells are inactive. C The cells are damaged. D The cells are cancerous.

Define the following terms: acids, bases, oxoacids, oxoanions, and hydrates.

What energy sources make up the majority of the world's energy supply? O A. Solar and nuclear B. Hydropower and geothermal O c. Oil and coal O D. Geothermal and solar

Why is PCl3 called phosphorus trichloride

Distinguish Between matter and mass

15.434 g of kcl (m. m 74.55 g/mol) is dissolved in water up t a total volume of 500.0 mL. the density of this solution is 1.02 g/mL. what is the concentration of he solution in molality

Determine the molar mass of an unknown monoprotic acid to two decimal places if 20.01 ml of a 0.098 m naoh solution were used to titrate 0.215 g of the unknown acid

A diatomic molecule with a triple covalent bond is A. H2 B. N2 C. O2 D. Br2 (P. S. The answer turned out to be B. N2)

Consider the following half-reactions: Half-reaction E° (V) I2 (s) + 2e - 2I - (aq) 0.535V 2H + (aq) + 2e - H2 (g) 0.000V Zn2 + (aq) + 2e - Zn (s) - 0.

Where did the longest tsunami form?