According to the law of conservation of mass, three atoms of calcium can react to produce atoms of calcium. a. three
b. five
c. two
d. four

Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning

For either problem would be greatly appreciated

Metric temperature is measured in celsius and fahrenheit. true or false