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strojnjashka [21]
3 years ago
14

How many moles of copper are equivalent to 3.44 × 1023 atoms of copper?

Chemistry
1 answer:
nexus9112 [7]3 years ago
3 0

3.44x10^23 divided by 6.02x10^23 equals 0.571 mol Cu.

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How sulphuric acid react with Glucose ? Give reaction​
Ierofanga [76]

Answer:

Concentrated sulfuric acid can perform a dehydration reaction with table sugar. After mixing, the color changes from white to brownish and eventually to black. The expansion of the mixture is the result of vaporization of water and CO2 inside the container.

8 0
3 years ago
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2. A 2.5 mol SAMPLE OF OXYGEN GAS (O2) INCREASES TO 3.2 mol
lana [24]

696.32 mmHg is the final pressure of the gas.

<h3>What is an ideal gas equation?</h3>

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas.

Given data:

P_1 = 720 mmHg              

P_2 = ?

n_1 = 2.5 mol                

n_2 = 3.2 mol

V_1 = 34 L            

V_2 = 45 L

Formula

Combined gas law

\frac{P_1 V_1}{n_1}  = \frac{P_2 V_2}{n_2}

P_2 = 696.32 mmHg

Hence, 696.32 mmHg is the final pressure of the gas.

Learn more about an ideal gas equation here:

brainly.com/question/19251972

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6 0
2 years ago
What is the number of protons and electrons in a neutral atom of<br> Lithium?
nadya68 [22]
If you look at the periodic table you will see the atomic number (the smaller number) which is 3. that identifies how many protons there are. since the lithium is neutral that means there’s a same amount of electrons.

therefore there’s 3 electrons and 3 protons

3 0
3 years ago
Is 4 grams of oxygen bigger than 1 mole of oxygen
levacccp [35]

Answer:

No, a mole of oxygen is about 16 grams

Explanation:

6 0
3 years ago
This question is for science. which options describes the particles of water as liquid water actively boils to become steam?
-BARSIC- [3]

Answer:

The correct option is;

a. The particles will gain a large amount of kinetic energy

Explanation:

As the water temperature reaches 100°C, which is the boiling point for water at atmospheric pressure, the continued heating is then used to break up the strong inter molecular forces between molecules of the water  such that the individual molecules are free to move about and due to the high temperature, have gained considerable amount of kinetic energy for the to rise to appreciable height and to also spread.

The heat which converts water into steam is called latent heat as during the boiling phase, the temperature of the water remains constant.

4 0
3 years ago
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