A very reactive metal

• Copper

• Phosphorus

• Sodium

• Iron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What does ductile mean?

• electricity flows easily

• quacks like a duck

• can be drawn into a wire

• able to bend

Which of the following is not a property of metals

• can be pulled into long wires

• dull surface

• high density

• malleable

Metal oxides are ---------------------- in nature

Tags

NGSS.HS-PS1-1

Metals react with acids to produce

• Hydrogen gas

• Oxygen gas

• Carbon dioxide gas

• Nitrogen gas

Tags

NGSS.HS-PS1-1

The nonmetal used to disinfect water

• Phosphorus

• Sulphur

• Oxygen

• Chlorine

Tags

NGSS.HS-PS1-2

--------------------- gas burns with a pop sound

The condition required for rusting of iron is

• Moisture

• air

• Both moisture and air

• heat

Tags

NGSS.MS-PS1-2

Iron nail is put in copper sulphate solution.The colour of the solution

• Changes from blue to green

• Changes from green to blue

• Changes from blue to colourless

• remains the same

Tags

NGSS.HS-PS1-2

A nonmetal stored in water

• oxygen

• sodium

• Phosphorus

• sulphur

Tags

NGSS.HS-ESS2-5