3 years ago

What are some similarities amongst elements within a group?

1 answer:

8 0

Elements in the same group have the same amount of electrons.

Elements in the same period have the same amount of atomic orbits.

Hope this helps!

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What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

tatuchka [14]

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3 years ago

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Plants and animals that survive in their environment reproduce and pass on their genes. In their turn, their offspring that surv

LiRa [457]

It’s called the Evolution

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2 years ago

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1826.5g of methanol (CH3OH), molar mass = 32.0 g/mol is added to 735 g of water, what is the molality of the methane 0.0348 m 1.

Snowcat [4.5K]

Answer:

Molality = 1.13 m

Explanation:

Molality is defined as the moles of the solute present in 1 kilogram of the solvent.

Given that:

Mass of $CH_3OH$ = 26.5 g

Molar mass of $CH_3OH$ = 32.04 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{26.5\ g}{32.04\ g/mol}$

$Moles\ of\ CH_3OH= 0.8271\ moles$

Mass of water = 735 g = 0.735 kg ( 1 g = 0.001 kg )

So, molality is:

$m=\frac {0.8271\ moles}{0.735\ kg}$

<u>Molality = 1.13 m</u>

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2 years ago

Is the answer A, B, C, or D?

Sunny_sXe [5.5K]

Answer:

Explanation:

C because there is more in it than the rest of the idems

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What makes up a film badge?

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A panel or layers of photographic film covered with black paper and exposed to air ,salt,and other chemicals on clear acetate

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