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inn [45]
4 years ago
6

I need help how do you do this ?

Chemistry
1 answer:
Karolina [17]4 years ago
7 0
Sorry, haven't came across that as of yet.
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What did Ernest Rutherford’s gold foil experiment demonstrate about atoms ?
Alchen [17]

Answer:

Their positive charge is located in the small nucleus

Explanation:

Ernest Rutherford performed the gold foil experiment in 1911 where he used alpha particles generated from a radioactive source to bombard a thin gold foil.

In his experiment, he observed that the bulk of the alpha particles passed through the gold foil, just a tiny fraction was deflected back. To explain his findings, Rutherford proposed that an atom is made of positively charged centre where nearly all the mass is concentrated called nucleus. Surrounding the nucleus is a large space containing electrons.

4 0
3 years ago
Read 2 more answers
Explain why grinding the solid increases the rate of solution.
STALIN [3.7K]
Here, this is what I have. :)

4 0
3 years ago
c) If a mixture of zinc powder and cobalt(II) oxide is heated, the following reaction occurs: Zn(s) + COO(s) → ZnO(s) + Co(s) (i
bazaltina [42]

Answer:

The metal which reduces the other compound is the one higher in reactivity. So in this case, it is.

Explanation:

5 0
3 years ago
Can you pls tell me the word equations for all these equations​
Leokris [45]

Answer:

Below

Explanation:

Balanced form;

2C_6H_6 +15O_2 -> 12CO_2+6H_2O\\\\ Ca_3(PO_4)_2 +8C -> Ca_3P_2 +8CO\\\\2HNO_2+O_2 -> 2HNO_3\\\\Ca(OH)_2 + CO_2 -> CaC0_3+H_2O\\\\2K +Br_2 ->2KBr\\\\2NaOH+FeSO_4 -. Na_2SO_4 +Fe(OH)_2

1.Benzene + Dioxygen = Carbon Dioxide + Water

2.Tricalcium phosphate +Carbon = Calcium phosphide + carbon monoxide

3.Nitrous acid react with oxygen to produce nitric acid.

4.This means that the carbon dioxide and limewater react to produce calcium carbonate and water.

5.Potassium react with bromine to produce potassium bromide

6. An aqueous solution of ferrous sulphate reacts with aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in the solution.

5 0
3 years ago
A gas occupies a volume of 10 liters at a pressure of 0.5 atm. What is the pressure if the volume increases to 25.0 L? *
Rudik [331]

Answer:

0.2atm

Explanation:

By Boyle's law

P1V1=P2V2

0.5 x 10 = P2 x 25

therefore, P2= 0.2atm

7 0
3 years ago
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