Chemistry, 04.01.2021 21:10 naomijamieson88
Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone. He also knows that limestone reacts with acids and that chemical reactions are affected by temperature. With this in mind, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone. Which statement describes the correct plan for his procedure? The temperature and the amount of damage to the limestone are controls. The amount of acid and the type of limestone are variables. The temperature and the type of limestone are controls. The amount of acid and the amount of damage to the limestone are variables. The amount of acid and the type of limestone are controls. The temperature and the amount of damage to the limestone are variables. The amount of acid and the amount of damage to the limestone are controls. The type of limestone and temperature are variables.
Answers: 1
Chemistry, 22.06.2019 21:30
Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.
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Chemistry, 23.06.2019 09:00
A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy
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Chemistry, 23.06.2019 11:30
Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.
Answers: 1
Chemistry, 23.06.2019 21:20
Consider the total ionic equation below. what are the spectator ions in this equation? h+ and oh- h+ and ba2+cro2-4 and oh- cro2-4 and ba2+
Answers: 3
Omar observes that many buildings in his city were built using limestone. He has read that acid rain...
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