Look at the chemical equation:

3H2 + N2 - 2NH3

How many atoms of hydrogen (H) are present on both sides of the equation?

Which statement describes thermal energy? the energy that is associated with electric fields the energy that is stored in chemical bonds the energy that is associated with the pull of gravity the energy that is associated with temperature

The chemical bonds of carbohydrates and lipids have high potential energy because: a. They are strong oxidizing agents b. They are strong reducing agents c. Many of their bonds are C-C and C-H d. They are easy to hydrolyze e.

What would be and independent variable

Calculate the ph of a buffer that is 0.12 m in lactic acid and 0.11 m in sodium lactate

How many grams of chromium are needed to react with an excess of CuSO4 to produce 27.0g Cu? A) 14.7 grams B) 18.0 grams C) 33.2 grams D) 81.5 grams

Which of the following is the largest volume? 1.2 x 101 m3 1.2 x 108 cm3 2.0 x 104 dm3 1.2 x 108 mm3

Many substances can go through physical and chemical changes. Which of the following is an example of a physical change?

Which contains more molecules: a mole of hydrogen or a mole of chlorine

How are sex chromosomes different from other chromosomes

If we place the like poles of two magnets facing each other what will happen? A. Nothing B. They will both become negative. C. They will attract each other. D. They will repel each other.