Chemistry, 13.07.2019 14:30 mariasoledad1
How are physical and chemical changes similar? a. neither can change the number of atoms of each element that are present b. neither can cause chemical bonds to break c. neither can result in a phase change d. neither can cause a substance to give off heat or light
Answers: 1
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Using data from seismic waves, geologists have learned that earth’s interior is made up of several
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Chemistry, 22.06.2019 11:00
When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.
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Chemistry, 22.06.2019 21:00
Rays from the sun are not considered matter true or false
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Chemistry, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 × 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)
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How are physical and chemical changes similar? a. neither can change the number of atoms of each e...
Mathematics, 31.01.2020 15:52
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Mathematics, 31.01.2020 15:53
Mathematics, 31.01.2020 15:53
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