Chemistry, 02.08.2019 22:00 dkhakdoust
When a block of steel at 90 degrees celsius is placed in a bucket of water at 30 degrees celsius, what happens? question 22 options: the temperature of the steel increases and the temperature of the water decreases. the temperature of the steel increases and the temperature of the water increases. the temperature of the steel decreases and the temperature of the water decreases. the temperature of the steel decreases and the temperature of the water increases.
Answers: 2
Chemistry, 21.06.2019 19:30
The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?
Answers: 1
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 22.06.2019 19:00
Which statement best describes what happens when molecular compounds melt
Answers: 1
When a block of steel at 90 degrees celsius is placed in a bucket of water at 30 degrees celsius, wh...
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