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Bond [772]
3 years ago
11

How are elements in the nitrogen family ( group 15) similar to each other

Chemistry
2 answers:
IgorC [24]3 years ago
7 0
They have the same amount of electrons in their outer shell
Nina [5.8K]3 years ago
4 0
They have similar electron configurations and have similar ionic chargers
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If 225 grams of propane are burned in the presence of 125 grams of oxygen, how many grams of water should be expected?
Travka [436]
150 grams of water because if 225 grams of propane are burned with 125 grams of oxyegen then there will be 150 grams of water

5 0
2 years ago
A galvanic cell consists of a Al3 /Al half-cell and a standard hydrogen electrode. If the Al3 /Al half-cell standard cell functi
11111nata11111 [884]

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Explanation:

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3 0
3 years ago
How does hess's law use intermediate reactions to calculate the enthalpy of a desired reaction?
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By adding the enthalpies of the intermediate reactions together to get the enthalpy of the desired reaction
7 0
3 years ago
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You use 4.98 g of Na2SO4, how many grams of barium sulfate are produced?<br><br> Na2+Ba(NO3)2= ?
Kaylis [27]

Answer:

Mass of barium sulfate = 8.17 g

Explanation:

Given data:

Mass of sodium sulfate = 4.98 g

Mass of barium sulfate produced = ?

Solution:

Na₂SO₄ + Ba(NO₃)₂    →   BaSO₄ + 2NaNO₃

Moles of sodium sulfate:

Number of moles = mass/molar mass

Number of moles =4.98 g / 142.04 g/mol

Number of moles = 0.035 mol

Now we will compare the moles pf sodium sulfate and with barium sulfate.

                            Na₂SO₄               :            BaSO₄

                                1                       :              1

                              0.035                :          0.035

Mass of barium sulfate:

Mass = number of moles × molar mass

Mass =   0.035 mol ×233.4 g/mol

Mass = 8.17 g

6 0
2 years ago
Complete the statement.<br> Ethanol is<br> an elementary substance<br> a compound
Talja [164]

Answer:

a compound is a syllable in the outer world

Explanation:

6 0
2 years ago
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