Answer:
1. Increasing the concentration of the acid
2. Increasing the temperature
Explanation:
CaCO₃ + 2HCl ⟶ CaCl₂ + H₂O + CO₂
Increasing the concentration of the acid increases the number of hydronium ions in contact with the surface of the CaCO₃ per unit time.
Increasing the temperature increases the kinetic energy of the hydronium ions, so they hit the surface of the CaCO₃ mor frequently and with greater force.
3. is wrong. The bigger the pieces, the smaller the surface area that is available for reaction.
Answer: I believe it is artificial selection (not certain though)
Explanation: modern day dogs have been bread an domesticated to be used by humans in ways we see fit.
Answer:
A.There are many active undersea volcanoes
B.There are long underwater mountain chains
Some chemical properties of nitrogen are...Nitric acid salts, potassium nitrate, trinitrotoluene, ammonium nitrate, and nitro-glycerine.
Answer:
The answer should be D
Explanation:
It states the simple weather conditions and such
