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aleksklad [387]

2 years ago

6

What were elements characterized by in the 1860's

1 answer:

ahrayia [7]2 years ago

4 0

Answer:

Döbereiner singled out triads of the elements lithium, sodium and potassium as well as chlorine, bromine and iodine. He noticed that if the three members of a triad were ordered according to their atomic weights, the properties of the middle element fell in between those of the first and third elements.

Explanation:

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Please help me I will give you extra points and the brain thing please actually do it.

Shkiper50 [21]

Inertia is the retaliation of an object to change in its velocity

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2 years ago

Which of the following is not an organic compound?<br> Corn oil<br> Bromine<br> Methane<br> Protein

zloy xaker [14]

The correct answer is Bromine
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2 years ago

A 9.79 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon gas to the balloon increased its volume to 21.8

aivan3 [116]

Answer:

16.06 L was the initial volume of the balloon.

Explanation:

Initial moles of freon in ballon = $n_1=9.79 mol$

Initial volume of freon gas in ballon = $V_1=?$

Moles of freon gas added in the balloon = n = 3.50 mole

Final moles of freon in ballon = $n_2=n_1+n=9.79 mol+3.50 mol=13.29 mol$

Final volume of freon gas in ballon = $V_2=21.8 L$

Using Avogadro's law:

$\frac{V_1}{n_1}=\frac{V_2}{n_2}$ ( at constant pressure and temperature)

$V_1=\frac{V_2\times n_1}{n_2}=\frac{21.8 L\times 9.79 mol}{13.29 mol}=16.06L$

16.06 L was the initial volume of the balloon.

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2 years ago

Find the molecular mass of MgSO4

rewona [7]

120.38 g/mol is the answer

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3 years ago

Read 2 more answers

Can someone help balance this?

FromTheMoon [43]

Explanation:

2Fe+3Br---> 2FeBr3

it is balanced this way

8 0

2 years ago