During all chemical reactions, mass, energy, and charge are

(1) absorbed (3) formed

(2) conserved (4) released

The transfer of energy from objects with higher temperatures to objects with lower temperatures is defined as which of the following? dispersal heat subduction gradient transfer

How many atoms of phosphorus are in 2.50 million of copper (II) phosphate

In a controlled experiment, the factor tested is called the A. constant. B. independent variable. C. dependent variable. D. control.

Which one of these statements about formal charge is true? which one of these statements about formal charge is true? formal charge is most useful for ionic compounds. formal charge is the same as oxidation number.

Why is thinking of a homework plan is not a form of work?

Which of the following is the correct expression for the rate of the following reaction

What are example of dense things.

What is the difference between a subscript and a coefficient?

Find the temperature from 150ml cylinder containing 0.75 moles gas at 153kpa.

The balanced equation for the gaseous state oxidation of ammonia is shown below. 4 nh3 + 5 o2 → 4 no + 6 h2o how many moles of o2 are required to react with 1.2 mole of nh3?