Water and ammonium nitrate (NH4NO3) react in an endothermic reaction in a beaker. What would you expect to observe during this reaction?

The beaker will get colder.
The reaction will give off light.
The products will be gaseous.
The reactants will boil.

What is the study of how matter and energy interact? a. biology b. physics c. planetary science d. chemistry

Which characteristics can be used to differentiate star systems? check all that apply.

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space