Chemical reactions -

a. produce new substances.

b. create and destroy atoms.

c. occur only in living organisms.

d. only occur outside living organisms.

What is sodium polycrylate

Which two compounds have the same empirical formula? A. NO2 and N2O4 B. H O and H2O C. CH2 and C3H8 D. C2H2 and C2H4

What is the concentration of KCI if 10 g are dissolved in enough water to make 12 L?

Which of the following compounds have the same empirical formula? a C6H12 and C6H14 b CO2 and SO2 c C7H14 and C10H20 d C4H10 and C10H4

As two chemicals react, the chemical bonds between the atoms in each react and break. Then, new bonds form. We call this process a chemical change or chemical reaction. True False

What change into velocity

Would you expect the h atoms to remain bonded to each other, or would the molecule fall apart?

Conductivity in a metal results from the metal atoms having (1) high electronegativity (2) high ionization energy (3) highly mobile protons in the nucleus (4) highly mobile electrons in the valence shell

All atoms are neutral. explain the basis of this fact

What is the ph of a solution containing 0.12mol/l of nh4cl and 0.03 mol/l of naoh (pka is 9.25) ?