What is the mass in grams of 1.50 x10^15 atoms N

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

What causes most sediment to wash or fall into a river