10 chem big quiz

What element is Ni ?

What element is Sn ?

What element is Ag ?

What is the element symbol for potassium?

True or false - the noble gasses are in group 17

• True

• False

Name the element in group 1, period 4

True or false: There are more metals than non-metals.

• True

• False

Balance the following equation:

NaHCO_3(s) +HCl_(aq) -> NaCl_(aq)+H₂O_(l)+CO_2(g)

What is the correct coefficient for CO_2(g) ?

Balance the following equation

Al_(s)+O_2(g) -> Al₂O_3(s)

_{What is the correct coefficient for oxygen?}

protons are...

• positively charged

• negatively charged

• neutral