Which acids base neutralization reaction will not produce appreciable products a) H2O + H2SO4 = HSO4- + H3O+
b) NH4+ + OH = NH3- + HNO3
c) HCO3- + HS = H2S + CO3^2-
d) CH3COOH + HCO3- = H2CO3 + CH3COO-

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?