Which has a greater mass, a mole of hydrogen (H) atoms or a mole of

sodium (Na) atoms?

How many major reservoirs does carbon move between? A. 3 B. 4 C. 5 D. 2

How are oxides of nitrogen formed?

Why did people make salt from sea water instead of picking up the salt from the beach like Gandhi did?

Phosphorus is found on the end of a match It is a red, nonmetal solid that is brittle and highly flammable. Identify the chemical property of phosphorus? a.) t is red b.) It is a nonmetal C.) t is brittle D.) It is highly flammable

Which of the samples most likely had the lowest solubility?

How does magnesium obey the octet rule when reacting to form compounds

Is heat conductivity a physical or chemical property?

When 5800 joules of energy are applied to a 15.2-kg piece of lead metal, how much does the temperature change by

What is 230 in scientific notation?

Methane (ch4) and the perchlorate ion (clo-4) are both described as tetrahedral. what does this indicate about their bond angles?