MANAGING WASTE PROPERLY AND CHEMICAAL CHANGE

It occurs when a new material is produced after a chemical reaction.

• chemical change

• physical change

• waste management

• chemical reaction

inidicated by a changne in color, absorption, or release of energy and production of gas and solid precipitate

• chemical change

• physical change

• waste management

• chemical reaction

chemical change may produce a solid particles called ____

• oxidation

• malleability

• precipitate

• curd

lemon juice and milk when combined form a new substance called ____

• oxidation

• malleability

• precipitate

• curd

Rust is fformed when iron is exposed to oxygen, this process is called ____

• oxidation

• malleability

• precipitate

• curd

cleaning products like bleaching agents, detergents and dishwashing liquid is an example of _____

• toxic materials

• flammable materials

• harmful materials

• household materials

controls weeds that are harmful to useful plants

• pesticides

• insecticides

• herbicides

• medicines and vitamins

helps control pests thaat destroy crops

• pesticides

• insecticides

• herbicides

• medicines and vitamins

improve plant growth to yield bettter harvest

• pesticides

• insecticides

• herbicides

• fertilizers

The best known rubber is the ______made from the milky latex of the rubber tree.

• natural rubber

• synthetic alternative

• original rubber

• fiber rubber