Chemistry, 05.10.2021 14:00 hipeopleitsme121
Evidence of chemical reactions include -
light production, color change (new/different), gas production (bubbles/fizzing - not boiling), precipitate, and temperature change
no light production, color change (new/different), gas production (bubbles/fizzing - not boiling), precipitate, and temperature stays the same
color change (new/different), gas production (like when a soda is opened), precipitate, and temperature stays the same
light production, color change (like adding food coloring to water), gas production (like when a soda is opened), precipitate, and temperature change
Answers: 2
Chemistry, 22.06.2019 19:40
Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory
Answers: 3
Chemistry, 22.06.2019 22:30
Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next
Answers: 3
Chemistry, 23.06.2019 01:30
In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i
Answers: 1
Evidence of chemical reactions include -
light production, color change (new/different), gas produ...
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