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When elements bond together or when bonds of compounds are broken and form a new substance
(A)Fireworks
(B) Chemical reaction
(C)Chemical change
(D)Energy
Answers: 2
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In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth
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We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
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Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
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Physics, 23.06.2019 13:50
The chart shows the amount of solute that fully dissolved when added to 500 ml of water. which ranks the solutions in order of greatest to least solubility? x → y → z y → x → z z → x → y y → z → x
Answers: 3
When elements bond together or when bonds of compounds are broken and form a new substance
(A)Firew...
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