COMBINED SCIENCE 1RO

FREEZING IS THE CHANGE OF STATE OF

• SOLID TO LIQUID

• LIQUID TO GAS

• LIQUID TO SOLID

• GAS TO LIQUID

THE MELTING POINT IS THE NAME OF THE TEMPERATURE IN WHICH...

• A SOLID CHANGE TO LIQUID

• A LIQUID CHANGE TO GAS

• A LIQUID CHANGE TO SOLID

• A GAS CHANGE TO LIQUID

• THE IMAGE CORRESPONDS TO A...

• LIQUID

• GAS

• SOLID

WHICH SUB-ATOMIC PARTICLE HAS THE SMALLEST RELATIVE MASS?

• PROTON

• ELECTRON

• NEUTRON

A MIXTURE IS...

• A SET OF ATOMS

• A SET OF MIXTURE

• A SET OF COMPOUNDS

WHAT IS THE FORMULA OF THE COMPOUND?

• C₃ H₈ O₂

• C₄ H₈ O

• C₄ H₈ O₂

• C₃ H₇ O₂

Which process is a physical change?

• the melting of ice

• The reaction of sodium with water

• The combustion of methane

What is the formula of this compound?

• C₅ H₁₁ O

• C₅ H₁₁ O₂

• C₅ H₁₂ O

• C₅ H₁₂

How many protons does the lithium atom have?

• 6

• 4

• 3

• 8

How many neutrons does the Magnesium atom have?

• 24

• 12

• 10

• 14