Chemical reaction review day 1

When one or more substances are transformed into different substances

• physical reaction

• chemical reaction

• chemical process

• chemical analysis

Substances that go INTO a chemical reaction

• Producers

• Products

• Ingredients

• Reactants

Substances produced or made in a chemical reaction

• Produce

• Reactants

• Products

• Chemicals

The arrow in a chemical reaction ____ (Pick all that apply)

• points to the products

• shows the direction of the physical reaction

• shows the direction of the chemical reaction

• points to the reactants

If a chemical reaction gives off heat it is an___________ reaction and the temperature ____________

• exothermic, rises

• endothermic, rises

• exothermic, decreases

• endothermic, decreases

An __________ chemical reaction absorbs heat and the temperature______

• exothermic, rises

• endothermic, rises

• endothermic, decreases

• exothermic, decreases

When we write chemical reactions, _____ are on the left and ______ are on the right

• reactants, products

• products, reactants

• exothermic, endothermic

• endothermic, exothermic

What are the reactants in this chemical reaction?

CH₄ + 2O₂ ----> CO₂ + 2H₂O

• CH₄ and CO₂

• O₂ and CH₄

• CO₂ and H₂O

• H₂O and O₂

What are the products in this chemical reaction?

CH₄ + 2O₂ ----> CO₂ + 2H₂O

• CH₄ and O₂

• CO₂ and H₂O

• CH₄ and CO₂

• H₂O and CH₄

Which of these is a chemical reaction? Pick all that apply

• burning a match

• Hydrogen gas and Oxygen gas producing water

• Water frozen producing ice

• Baking a cake