Chemistry, 30.01.2021 03:40 elizzabel1944
Rosina creates a demonstration showing a sound echo. How could she demonstrate this?
She throws water at a wall, and it drips down the wall,
B She throws a rubber ball at a wall, and it bounces back to her,
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She throws an egg at a wall, and it breaks and falls to the floor,
D She throws sand at a wall, and it hits the wall and falls to the floor.
Answers: 2
Chemistry, 21.06.2019 22:30
1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 → 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl → 3. combine magnesium metal and hydrochloric acid solution. mg + hcl → 4. electrolysis (splitting) of water. h2o → 5. burning magnesium. mg + o2 →
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Chemistry, 22.06.2019 09:00
What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable
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Chemistry, 22.06.2019 20:20
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
Answers: 1
Rosina creates a demonstration showing a sound echo. How could she demonstrate this?
She throws wat...
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