Chemistry, 01.09.2020 18:01 kaleighlong959
Which of the following are observations? Select all that apply.
A. Watching table salt dissolve in water.
B. Feeling the sensation of ice held in the hand.
C. Smelling ammonia used in a cleaning solution.
D. Hearing a loud bang when a balloon filled with hydrogen gas is ignited.
E. Looking at the readout of a digital scale when measuring reagents for an experiment.
Answers: 3
Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
Answers: 3
Chemistry, 22.06.2019 04:30
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
Answers: 2
Which of the following are observations? Select all that apply.
A. Watching table salt dissolve in...
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