When an object's speed and direction are known, so is its a. mass b. velocity c. momentum d. acceleration

Classify this reaction: 2al+n2-> aln.

What are several ways to reduce the effect of friction

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?