What type of rock is formed after magma or lava cools hardens?

A. layers form

B. heat and pressure are applied

C. lava cools

D. erosion breaks down

5.2 cm of a metal is found to weigh 46.6 g on a three decimal balance. What is the density of the metal, expressed to the proper number of significant figures? 9 g/cm [2] 9.0 g/cm 8.96 g/cm 0.11 g/cm [5] 0.112 g/cm

If you combine 290.0 mL 290.0 mL of water at 25.00 ∘ C 25.00 ∘C and 140.0 mL 140.0 mL of water at 95.00 ∘ C, 95.00 ∘C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

The compound ClF contains Group of answer choices polar covalent bonds with partial negative charges on the Cl atoms. ionic bonds. nonpolar covalent bonds. polar covalent bonds with partial negative charges on the F atoms.

What is the formula for dinitrogen tetrafluoride?

Separation of mixture by gravity of sodium carbonat into calcium chloride

Action - reaction forces don't cancel each other. A. True B. False

An equilibrium is dynamic. True False

In a lab, a student dissolves 6.9 g of sodium chloride (NaCl) in 125 g of water (H2O). What is the molality concentration of the solution?

Audrey is driving 50 miles in 2 hours what is her average speed?

Water has a specific heat of 4184 J / (kgK) how much energy is needed to increase the temperature os a kilogram of water 5C?