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grigory [225]
3 years ago
13

The atomic number is very important, as it indicates

Chemistry
1 answer:
ankoles [38]3 years ago
5 0

Answer:

B.) the number of protons and also the number of electrons in an element

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If an atom contains 1 electron and 1 proton will it carry any charge or not?
Ipatiy [6.2K]

Answer:

It is a neutral atom and does not carry a charge

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3 years ago
Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
iogann1982 [59]

Answer:

We need 226 grams of FeS

Explanation:

Step 1: Data given

Mass of FeCl2 = 326 grams

Molar mass FeCl2 = 126.75 g/mol

Step 2: The balanced equation

FeS + 2 HCl → H2S + FeCl2

Step 3: Calculate moles FeCl2

Moles FeCl2 = 326 grams / 126.75 grams

Moles FeCl2 = 2.57 moles

Step 4: Calculate moles FeS needed

For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl

For 2.57 moles FeCl2 we need 2.57 moles FeS

Step 5: Calculate mass FeS

Mass FeS = 2.57 moles * 87.92 g/mol

Mass FeS = 226 grams FeS

We need 226 grams of FeS

4 0
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Answer:

.........................................................

Explanation:

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We observe that heat capacity of salted water we will find that it is less than pure water. We now that it takes less energy to increase the temperature of the salt water 1°C than pure water. Which means that the salted water heats up faster and eventually reaches to its boiling point first.
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Which of the following reactions is an example of a single replacement reaction?
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