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grxph
Questions and answers by visitors named
grxph
Questions (11)
Study the following equation.
Fe(s) + 2 HCl(aq) → H2(g) + FeCl2(aq) What happens to the iron metal when it is reacted in a
4 answers
1,419 views
Study the reaction.
H2SO4(l) + CaCO3(s) ⇌ CO2(g) + H2O(l) + CaSO4(aq) Which of the following would cause the equilibrium to
4 answers
1,894 views
The activation energy for a reaction is the energy difference between what two components of a reaction?
product and the
1 answer
380 views
Americium-241 is a radioactive isotope used in household smoke detectors. It decays by alpha decay. Which of the following
1 answer
910 views
950 J of energy is used to heat an unknown mass of copper from 20.0° C to 95.0° C. The specific heat of copper = 0.39
3 answers
604 views
A solution is formed by dissolving 83.2 grams of copper II chloride (CuCl2) in 2.5 liters of water. The molar mass of CuCl2 is
4 answers
956 views
What happens when there is an increase in temperature for a reaction rate?
Select all that apply. It increases the chance that
4 answers
1,038 views
A mixture consists of 45% oxygen, 12% argon, and 43% nitrogen by volume. A sample of this mixture has a pressure of 2.0 atm in a
2 answers
555 views
A sealed container of liquid develops some vapor pressure. Which of the following would reduce the vapor pressure?
increase the
1 answer
293 views
What does adding a catalyst to a reaction do?
Select all that apply. increase the amount of each product formed by the reaction
1 answer
787 views
Study the reaction.
2CH4 + 2O2 → CO2 + 2H2O If 7.4 moles of carbon dioxide (CO2) form at the end of the reaction, how many
1 answer
664 views
Answers (2)
does that sound right??
.25?
