Which of the following is an example of a physical change?
A) pouring hydrogen peroxide (H202) on a cut, causing oxygen (02) bubbles to form
B) mixing together flour, sugar, salt, eggs and butter to make cookies
c) baking a birthday for your best friend
D) enzymes within the digestive system breaking down the lunch you just ate
Answers: 3
Chemistry, 22.06.2019 02:40
Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?
Answers: 2
Chemistry, 22.06.2019 10:10
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
Chemistry, 22.06.2019 22:30
3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.
Answers: 1
Chemistry, 23.06.2019 03:00
Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?
Answers: 2
Which of the following is an example of a physical change?
A) pouring hydrogen peroxide (H202) on a...
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