What is a chemical change?

A.) Splitting water into hydrogen and oxygen

B.) Breaking a block of solid ice into smaller pieces

C.) Freezing liquid water

D.) Boiling water

When two forces act in opposite directions the object will accelerate in the same direction as the blank force?

A container filled with gas is connected to an open-end manometer that is filled with mineral oil. the pressure in the gas container is 753 mm hg and atmospheric pressure is 724 mm.

Balance this equation- Na3PO4 + KOH - > NaOH + K3PO4

Explain why magnesium and aluminium react in a similar way?

002376 moles of nahco3 to grams

What does a substance in solid fase has

What are the three requirements for an effective collision

What is the force applied when using a simple machine.

Select all that apply. when the products of a reaction have more energy than the reactants: the reaction is exothermic. the reaction is endothermic. the reactants gave up energy. the δh is positive.

How can you determine the number of valence electrons in an atom of a representative element?