Chemistry, 09.07.2019 06:30 jamesnech66
What is true about water that is freezing? a) the change cannot be undone. b) it is going through a physical change. c) it is going through a chemical change. d) the chemical makeup of the water will not remain the same.
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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, 23.06.2019 05:30
The term gas is limited to those substances that exist in the gaseous state at
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Chemistry, 23.06.2019 06:00
Robert leaves a chocolate bar in his car while attending school all day. when he goes to his car in the afternoon, the bat has changed into gooey liquid. what happened to the chocolate bar
Answers: 1
Chemistry, 23.06.2019 07:10
Which one of the following is an oxidation-reduction reaction? naoh + hno3 --> h2o + kno3 naoh + hno3 --> h2o + kno3 so3 + h2o --> h2so4 cacl2 + na2co3 --> caco3 + 2 nacl ch4 + 2 o2 --> co2 + 2 h2o al2(so4)3 + 6 koh --> 2 al(oh)3 + 3 k2so4
Answers: 3
What is true about water that is freezing? a) the change cannot be undone. b) it is going through a...
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