Grade 8 chemistry challenge

Both have fixed volume

• Solid and gas

• Liquid and gas

• Solid and liquid

All metals are magnetic

• True

• False

Which type of rock is usually porous?

• Igneous

• Sedimentary

• Metamorphic

What is the colour of litmus solution with alkalis

• Red

• Blue

• Yellow

How many elements in K₂SO₄

• 3

• 7

• 2

• 4

• Group 3

  Period 7

• Group 7

  Period 3

• B in Period 3

• C in group 2

• A in group 4

Which chemical symbol is potassium

• K

• P

• S

• Si

Which compound belong to hydroxides?

• Li₂O

• NaCl

• H₂S

• KOH

Which pH value is strong acid

• 2

• 7

• 5

• 12