The mass of the reactants of a chemical reaction will be the mass of the products.
a less than
b greater than
c equal to
d disproportionate to

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

Which statement best describes the he properties of iconic compounds ?

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it