Select the chemical equation that most likely represents the reaction between the vinegar and the
dolomite.
MgCO3 + 2HCH3COO → Mg+CO3 +(CH3COO)2 +H2O
MgCO3 + 2HCH3COO->Mg(CH3COO)2 + CO2 + H20
MgCO3 + 2HCH3COOMg(CH3COO)2 +H2O
MgCO3 + 2HCH3COO → Mg(CH3COO)2 + CO2

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.