Waves transfer

A

density

B

energy

C

heat

D

matter

Which of the following equations can be used to determine the change in enthalpy of a system? ΔHreaction=ΔHproducts*ΔHreactants ΔHreaction=ΔHproducts:ΔHreactants ΔHreaction=ΔHproducts+ΔHreactants ΔHreaction=ΔHproducts-ΔHreactants

Give an example of when two different species might compete for the same prey

How many chloride ions are needed to cancel the 2 + charge of magnesium in magnesium chloride?

What happens if atoms lose energy during a change of state? The atoms are pushed apart by repulsive forces and become less organized. The atoms are pulled together by attractive forces and become less organized.

Which of the following describes the principle of conservation of change A charge is created B. a charge cannot be transferred C. Charge can not be created or destroyed just transferred D charge can be destroyed (I will mark Brainliest)

What happens when light from the sun passes through any type of matter? the light slows down. the light speeds up. most of the light is absorbed. most of the light is reflected.

What is the chemical name for Fe (HCO3) 2

How are protons, electrons, and neutrons correctly compared

You compare two layers to a because the crust and upper mantle are solid

A substance that speeds up the rate of a chemical reaction is called a. a catalyst. b. a lipid. c. a molecule. d. an element.