You are planning an investigation that explores properties of matter.
Which of the following will help you discover a physical property?
Experiment: place a powder into a beaker that contains a liquid
Result: the beaker gets hotter
Experiment: place a powder into a beaker that contains a liquid
Result: the solid dissolves into the liquid
Experiment: place a powder into a beaker that contains a liquid
Result: the mixture begins to fizz and bubble
Experiment: place a powder into a beaker that contains a liquid
Result: the mixture catches fire and burns down the lab
Answers: 1
Chemistry, 21.06.2019 22:30
Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
Answers: 1
Chemistry, 22.06.2019 02:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al
Answers: 1
Chemistry, 22.06.2019 06:00
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?
Answers: 3
You are planning an investigation that explores properties of matter.
Which of the following will h...
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