Which is a simple substance that cannot be broken down into any other substances?

Which statement about neutrons is true? A. Neutrons travel around the nucleus of an atom. B. The number of neutrons in an atom always equals the number of electrons. C. Neutrons have less mass than electrons. or D. A neutron has no charge.

Which occurs as water moves from evaporation to condensation in the water cycle.

Which of the following is a combustion reaction? a 2H2O 2H2 + O2 b 2AgNO3 + H2S yields Ag2S + 2NHO3 c CH4 + 2O2 yields CO2 + 2H2O d 2Al + N2 yields 2AlN

Which of the following is normally the longest-lived reservoir for carbon? a. atmosperic CO2b. marien plankton (primary producers consumers) c. fossil fuelsd. wood

At stp which gas will diffuse more readily than ne

How to prove that NaCl is homogeneous mixture.

How many hydrogen bonds can CH3-O-CH2OH form with water?

What is a substance that has mass and volume

Why does some friction occur with seemingly smooth surfaces?

What is nano in the 10th power