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ENERGY: Action of electricity on materials
ENERGY: Action of heat on materials
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Reactions And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Chemical Symbols, Formulae And Valency
MATTER - PROPERTIES AND TRANSFORMATION: Effect Of Heat On Substances
MATTER - PROPERTIES AND TRANSFORMATION: Introduction To Chemistry - Symbols
MATTER - PROPERTIES AND TRANSFORMATION: Mixtures And Pure Substances
MATTER - PROPERTIES AND TRANSFORMATION: Periodic table - Families of elements and Relative reactivity
MATTER - PROPERTIES AND TRANSFORMATION: Reaction With Oxygen of air
MATTER - PROPERTIES AND TRANSFORMATION: The Atom And Sub-Atomic Particles

What does the symbol (g) next to a chemical formula in an equation represent?

Gaseous.

Grams.

Green.

Growing.

In the reaction: N₂ + 3H₂ → 2NH₃. If you start with 10 g of N₂ and 2 g of H₂, and all reactants are consumed, what is the total mass of NH₃ produced?

It cannot be determined.

12 g.

10 g.

2 g.

The equation CaCO₃_(s) (Heat) → CaO_(s) + CO₂_(g) is called a?

Oxidation.

Reduction.

Decomposition.

Combination.

Which of the following is a physical change?

Melting of ice.

Rusting of iron.

Baking a cake.

Digesting food.

Which of the following is NOT a common indicator of a chemical change?

Change in color.

Release of heat and light.

Change in density.

Formation of a new solid.