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julsineya [31]
3 years ago
15

How does lithium react with cold water?

Chemistry
1 answer:
Gwar [14]3 years ago
3 0
Since lithium is part of the Alkali group, it will burn when in contact with water, that goes for the rest of the Alkali's.
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How many molecules of dinitrogen pentoxide are in 0.27 moles of dinitrogen<br>pentoxide?​
ludmilkaskok [199]

Answer:

1.6 × 10²³ molecules of N2O5

Explanation:

To find the amount of molecules from the amount of moles of a substance we simply multiply the amount of moles by Avagadro's number.

0.27mol × 6.02×10²³ = 1.6 × 10²³ molecules of N2O5

4 0
3 years ago
Which of the follow statements about isotopes is NOT correct?
worty [1.4K]

Answer: B- Isotopes are often used for dating artifacts and fossils is incorrect.

Explanation: I hope that helped

8 0
3 years ago
What is the molarity of 5.74 liters of solution made with 246 grams of iron (III) chloride (FeCl3)? Answer with 3 SDs.
geniusboy [140]

Answer:

0.264 mol/L

Explanation:

Data obtained from the question includes:

Volume = 5.74L

Mass of FeCl3 = 246 g

Molarity =?

Next, we shall determine the number of mole in 246g of FeCl3.

This is illustrated below:

Mass of FeCl3 = 246g

Molar mass of FeCl3 = 56 + (35.5x3) = 162.5g/mol

Number of mole of FeCl3 =..?

Mole = Mass /Molar Mass

Number of mole of FeCl3 = 246/162.5

Number of mole of FeCl3 = 1.514 mol

Now, we can obtain the molarity of the solution as follow:

Molarity = mole /Volume

Volume = 5.74L

Mole of FeCl3 = 1.514 mol

Molarity = 1.514/5.74

Molarity = 0.264 mol/L

5 0
4 years ago
5. What is the correct formula for Sodium Carbonate?
Evgesh-ka [11]

Answer:

Na2Co3

Explanation:

Molar mass: 105.9888 g/mol

Melting point: 851 °C

8 0
3 years ago
Why do black objects get warm when visible light shines on them?
Lorico [155]
The lighter the color, the more ability for it to reflect light rather than absorb the light; therefore, the darker a material or surface, the less likely it is to reflect it.

hope this helped:)
7 0
2 years ago
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