Which two units commonly measure heat? pick two answers a. wattsb. joulesc. caloriesd. amperes

As a form of energy, heat has the unit joule (J) in the International System of Units (SI). However, in many applied fields in engineering the British thermal unit (BTU) and the calorie are often used. The standard unit for the rate of heat transferred is the watt (W), defined as one joule per second.

Percentage of abundance of Magnesium = 78.99%

Magnesium- 26 has a percent abundance = 11.01%

100-78.99-11.01=10%