How many grams of nickel (ni, 58.69 g/mol) are in 1.57 moles of nickel?

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

In this synthesis reaction what products will form