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emmasim [6.3K]
3 years ago
5

A sulfur ion has 16 protons and 18 electrons. Find the net charge

Chemistry
1 answer:
andrezito [222]3 years ago
5 0

I think its 2-, it gained 2 electrons.

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Why do (or can) your muscles hurt after a good workout
Anna71 [15]

Answer:

option C.there is an accumulation of carbon dioxide.

Explanation:

8 0
3 years ago
What fraction of the carbon dioxide exhaled by animals is generated by the reactions of the citric acid cycle
puteri [66]

Answer:

1/3

Explanation:

Pyruvate is produced by the glycolysis in cytoplasm. The oxidation of pyruvate takes place in mitochondrial matrix.  

Pyruvate is converted to acetyl-CoA in the reaction given below:

Pyruvate + NAD⁺ + CoA-SH ⇒ acetyl-CoA + NADH + CO₂

1 molecule of carbon dioxide is eliminated from 1 molecule of pyruvate.

Also,  

2 molecules of carbon dioxide is eliminated from 2 molecules of pyruvate (as glucose on glycolysis yields 2 molecules of pyruvate).

Also, acetyl-CoA further goes into the citric acid cycle and produces 2 molecules of carbon dioxide.

Thus pyruvate produces total 3 molecules of CO₂  and hence glucose produces 6 molecules of CO₂ (as glucose on glycolysis yields 2 molecules of pyruvate)

Thus,

<u>Fraction = 2/6 = 1/3</u>

4 0
3 years ago
What heat is liberated in the formation of 10.0 grams of sulfur hexafluoride, SF6, from the elements sulfur and fluorine?
tensa zangetsu [6.8K]

Answer:

Q=-76.7kJ

Explanation:

Hello,

In this case, for such formation of sulfur hexafluoride, the standard enthalpy of formation is -1220.47 kJ/mol (data extracted from NIST database). Next, we compute the moles in 10.0 grams of sulfur hexafluoride as shown below:

n_{SF_6}=10.0gSF_6*\frac{1molSF_6}{146.06 gSF_6}=0.0685mol

Next, for the given energy, we compute the total heat that is liberated:

Q=-1220.47\frac{kJ}{mol}*0.0685 mol\\\\Q=-76.7kJ

Finally, we conclude such symbol has sense since negative heat is related with liberated heat.

Best regards.

8 0
3 years ago
Different between:Electrovalent bond and covalent bond​
nikdorinn [45]

Explanation:

electrovalent bond covers single bond.

Covalent bond covers double or more bonds.

4 0
3 years ago
1. The underlined portion of the chemical formula above is the _____ and it represents ____________________.
Mnenie [13.5K]

1.Subscript,how many hydrogen molecules there are

2.No it is not balanced,oxygen is less than represented.

3 0
3 years ago
Read 2 more answers
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