Which location represents a period on a Periodic Table?

a row on the left and right of the table
a vertical row
a horizontal row
a diagonal row on the periodic table

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?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Give more examples of this type of heat transfer: