Which two particles make up most of the mass of a hydrogen-2 atom?

(1) electron and neutron

(2) electron and proton

(3) proton and neutron

(4) proton and positron

What is similar about igneous rock and metamorphic rock formation?

Which of these is most likely to make it difficult to keep up when playing vigorous sports and games

What is the reaction when magnesium becomes magnesium oxide

Lists ways that a bike's motion can change

What does a graph representing Charles's law show? Volume decreases as temperature increases. Volume increases at the same rate as temperature. Volume decreases as pressure increases. Volume increases at the same rate as pressure.

How do find the volume of 60.0g of ether if the density is. 70g/mL?

A population of crabs live on a light-colored sandy beach. In this environment there is a population of birds that eat the crabs. One year, there is a volcanic eruption near the beach and dark volcanic ash covers the beach.

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?