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Whitepunk [10]
3 years ago
12

Which arrangement of electrons is correct? Help please its timed!!!

Chemistry
1 answer:
postnew [5]3 years ago
8 0

Answer:

D

Explanation:

According to all the principles of filling it is d

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An organic compound that contains a carbonyl group with a hydroxyl group attached to it is an example of a(n)
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An organic compound that contains a carbonyl group with a hydroxyl group attached to it is an example of a (d) carboxylic acid.
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How many grams of HF are needed to react with 3.0 moles of Sn?
Flauer [41]

Answer:

120g

Explanation:

Step 1:

We'll begin by writing the balanced equation for the reaction.

Sn + 2HF —> SnF2 + H2

Step 2:

Determination of the number of mole HF needed to react with 3 moles of Sn.

From the balanced equation above,

1 mole of Sn and reacted with 2 moles of HF.

Therefore, 3 moles Sn will react with = 3 x 2 = 6 moles of HF.

Step 3:

Conversion of 6 moles of HF to grams.

Number of mole HF = 6 moles

Molar Mass of HF = 1 + 19 = 20g/mol

Mass of HF =..?

Mass = number of mole x molar Mass

Mass of HF = 6 x 20

Mass of HF = 120g

Therefore, 120g of HF is needed to react with 3 moles of Sn.

3 0
3 years ago
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RUDIKE [14]
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      Explanation
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Equation for   reaction  is  as follows

CO2+ H2O +  light  energy 
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3 0
3 years ago
What is formed by the hydrolysis of Starch?
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Answer:

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Explanation:

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