5. setting off fireworks Is the change physical or chemical?
Why do you thinks so? (2-3 reasons/indicators)

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?

What is the mass of sodium in 3 moles of sodium chloride

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.