4 years ago

What is the name of the scientist who discovered that atoms have a nucleus?

Chemistry

2 answers:

jasenka [17]4 years ago

8 0

Hey There,

Rutherford was the scientist who discovered that atoms have a nucleus.

Hope this helps!

Zina [86]4 years ago

6 0

C. Rutherford would be the answer

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Select all of the following statements that are incorrect.

lesantik [10]

A and c are incorrect

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4 years ago

Sodium oxide contains Na+ ions and O2- ions.<br> Give the formula of sodium oxide

mixer [17]

To be honest, I learned this in school so I'll tell you XD

The formula of sodium oxide is Na2O

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3 years ago

Coke is an impure form of carbon that is often used in the in- dustrial production of metals from their oxides. If a sample of c

steposvetlana [31]

Answer:

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

Explanation:

$2CuO+C\rightarrow 2Cu+CO_2$

1 Ton = 907185 grams

Mass of copper oxide = 1.0 Ton = 907185 grams

Moles of copper oxide = $\frac{907185 g}{79.55 g/mol}=11,403.95 moles$

According to reaction, 2 moles of copper oxide reacts with 1 mole of carbon.

Then 11403.95 moles of copper oxide will react with:

$\frac{1}{2}\times 11403.95 mol=5,701.98 mol$ of carbon

Mass of 5,701.98 moles of carbon:

$5,701.98 mol\times 12 g/mol=68,423.75 g$

Mass of coke = x

Mass of carbon = 68,423.75 g

Percentage of carbon in coke = 95%

$95\%=\frac{68,423.75 g}{x}\times 100$

$x=720,250.09 g=0.794 Ton$

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

3 0

3 years ago

How many kinds of atoms are in a pure substance?

stepan [7]

Single type of atom builds a single atom

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3 years ago

Read 2 more answers

What was used to fill thermometers before mercury? magma bourbon brandy helium

Tasya [4]

Answer:brandy was used to tell the temperature.May 7, 2013

Explanation:

Before mercury, what was used to fill thermometers? Was it Hawaiian Punch, well no silly. Long before mercury filled thermometers, brandy was used to tell the temperature.May 7, 2013

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3 years ago