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KATRIN_1 [288]
3 years ago
15

Li+1 had gained ______ one electron

Chemistry
1 answer:
zysi [14]3 years ago
3 0
Maybe molecules one electron
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(b)Calculate the number of moles of CuSO4 that were in the impure sample of CuSO4(s) .
irga5000 [103]

Answer:

The questions are incomplete

Explanation:

(b) This question is incomplete. However to calculate the number of moles of CuSO₄ present in the impure sample. The formula below can be used;

number of moles = mass of CuSO₄ present in the impure sample ÷ molar mass of CuSO₄

(c) This question is also incomplete. However, to calculate the mass percentage of CuSO₄ present in the impure sample of CuSO₄, the formula below can be used.

Mass percentage of CuSO₄ =

mass of CuSO₄ present in the impure sample/mass of impure CuSO₄ × 100

Thus, the mass of the impure sample must be measured also since the actual mass of the CuSO₄ present in the impure sample must have been measured before calculating the number of moles.

6 0
3 years ago
Please help.
denpristay [2]

Answer:

The bowling ball has more kinetic energy than the tennis ball

Explanation:

Using the formula 1/2 mass × acceleration we found that the tennis ball had a kinetic energy of 0.75 while the bowling ball had a kinetic energy of 10.5 hence the bowling ball has the ability to do more work

5 0
2 years ago
Ann and Carol each lift the timber with a force of 80 kg/m/s2. If they lift the timber a distance of 1.25 meters, how much work
Novosadov [1.4K]
Work is defined energy transferred from one to another. 
The formula for work done is work done = force x distance

So in our problem, force is equal to 80 kg/ m / s^2 and distance is equal to 1.25 meters. So plugging in our values will give us:

work done = 80 kg/ m/ s^2 * 1.25 m
= 100.00 J is the answer.
4 0
2 years ago
Incompatibilidades do sulfato de níquel hexahidratado
nexus9112 [7]

Answer: El HEXAHIDRATO DE SULFATO DE NÍQUEL es incompatible con ácidos fuertes, azufre, Ni (NO3) 2, madera y otros combustibles. (NTP, 1992) A temperatura elevada sufre una reacción violenta con aluminio o magnesio en polvo. Cuando se calienta hasta la descomposición emite humos muy tóxicos de óxidos de azufre

Explanation:

8 0
2 years ago
Two crates, one heavy and one light, are at rest on a waxed floor. Which crate will need the greater force to give the same chan
otez555 [7]
The heavy one because mass times force is equal to speed. The lighter one has less mass to it goes faster without as much effort. I hope that helps!
4 0
3 years ago
Read 2 more answers
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