Which of the following could NOT have happened as a pot of water boiled on the stove?

1. Particle vibration increased.

2. Particle vibration decreased

3. Particles moves farther apart

4. Particles move randomly

Describe the redox reaction. Check all that apply 2AI (s) + 3ZnCI2 (g) → 3Zn (s) + 2AICI3 (aq). Aluminum atoms transfer electrons to chlorine atoms. Zinc is reduced. Zinc is the reducing agent. The oxidation number of chlorine does not change.

If this pattern is annual, we would expect area D. to have the greatest extremes in average annual temperatures because A) of its closeness to Mexico. B) it is the southernmost location. C) there is the least atmospheric water present.

Which of the following is an example of pseudoscience? A) Astronomy B) Astrology C) Vulcanology D) Hydrology

Five graduate students prepare extracts from 5 different tissues. Each student measures the total amount of alcohol dehydrogenase and the total amount of protein in his or her extract.

According to the particle theory of matter, what is the difference between ice and water? a. ice is a solid, and water is a liquid. b. water is an element, and ice is a compound. c. the molecules in water have more energy than the molecules in ice.

Jenny and anne wanted to see who could throw the ball the hardest. they decided to each throw a ball against the wall as hard as they could and measured how far the ball rolled away from the wall. what might be the variables in this experiment;

Is calcium carbonate chemical change?

The mass number of an element is the sum of the number of

Balance the following reaction. CH4+O2==>CO2+H20

Why do you think crime scenes involving homemade bombs have increased?