Tin (II) fluoride is used in some toothpastes. It is made by the reaction of tin with hydrogen fluoride according to the following equation. Sn + 2HF → SnF₂ + H₂
How many atoms of SnF₂ are produced from the reaction of 30.00 g of HF with Sn?

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

It would be true sodium reacts with water in a violent way 

The answer to your q the total mass is 73

Part 1: which process does arrow f represent? part 2: explain how matter is conserved during the process. part 3: justify why this process is a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.