Chemistry, 11.02.2021 06:00, Amazingdolannn
A plastic ball with a charge of +1.0 C is brought near another ball with a charge of
-2.0 C. The balls are let go so that they are free to move. What happens?
The negatively charged ball does not move, but the positively charged ball starts
to move toward it because of an attractive force.
2
Nothing. Both balls stay exactly where they are.
The balls both start moving toward each other because they exert equal
attractive forces on each other.
15
The balls move apart because they exert equal repulsive forces on each other.
Answers: 1
Chemistry, 22.06.2019 10:30, officialalex6330
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 21:00, agarcia24101993
What is the chemical formula for the compound formed between sodium and flour one
Answers: 1
Chemistry, 23.06.2019 08:50, leah5981
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas. caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible. relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
A plastic ball with a charge of +1.0 C is brought near another ball with a charge of
-2.0 C. The ba...
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