What evidence can be used to to determine if the change is a physical change

Choose all that apply

The solid dissolved

The solid formed bubbles

The solid changed colors

The combination produced heat

How will the process of sedimentation affected, if sedimentation experiment is conducted on the surface of moon?

How many elements are in the periodic table

Which explanation best compares the movement of particles in three states of matter?

If you have 8 moles of O2 how many moles of H2O can be produced

A 40.0 g of a solute is dissolved in 500. mL of a solvent to give a solution with a volume of 495 mL. The solvent has a density of 1.00 g/mL. Which statement about this solution is correct? A. The molarity is the same as the molality. B.

Instructions for all body activities are found in a chemical known as

A force that all objects have? proton, electron, electric charge, attract, repel, positive ion, negative ion

Hurricanes cause large waves that hit the coast with considerable force. How can these waves negatively impact an ecosystem near the shore? A. by causing water sources near the coast to become less salty B.

What happens to bonds of the compounds in a chemical reaction

Oceans, which are the largest carbon sinks on earth, absorb carbon in which form