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3 years ago

Which type of eclipse would you expect to see if the moon passes directly between earth and the sun?

Chemistry

2 answers:

Dafna1 [17]3 years ago

7 0

Most likely C. Luna eclipse

Deffense [45]3 years ago

4 0

C. A total lunar eclipse.

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Which property of an atom's structure was used to organize the periodic table?

VashaNatasha [74]

It is the outermost electrons, for example all the first line has one outer electron and the second has to and so on and so forth. BUT THE TRANSITION METALS FOLLOW A DIFFERENT RULE.

5 0

3 years ago

What does "Здражейте, какво пражите?" mean?

Vera_Pavlovna [14]

Answer:

it mean "

Hello, what are you roasting"

Explanation:

3 0

4 years ago

The "Land Bridge Theory" is helpful in explaining which of these situations? A) how mountains are formed by water B) how the Ame

erica [24]

Answer:

Explanation:

It is believed that early humans used the Bering Land Bridge to migrate from Asia to the Americas

Hope this helps! :)

7 0

3 years ago

A sample of unknown hydrate, AC-XH20, has a mass of 1.000 g before heating and a

KIM [24]

Answer:

The water of crystallization for the formula of the unknown hydrate is 2.

Explanation:

Mass of an unknown hydrate = 1.000 g

Molar mass of hydrate = 195.5 g/mol

MOles of unknown hydrate = $\frac{1.000 g}{195.5 g/mol}=0.00512 mol$

Mass of hydrate after heating = 0.781 g

Mass of water lost due to heating = x

$1.000 g = 0.781 g + x\\x = 1.000 g - 0.781 g = 0.219 g$

Moles of water lost = $\frac{0.219 g}{18.01528 g/mol}=0.0122 mol$

$AC.xH_2O+Heat\rightarrow AC+xH_2O$

1 Mole of hydrate has x moles of water and 0.00512 moles of hydrate has 0.0122 moles of water then we can write:

$\frac{1 }{x}=\frac{0.00512 }{0.0122 }\\x\approx 2$

The water of crystallization for the formula of the unknown hydrate is 2.

7 0

3 years ago

Can someone help me

iogann1982 [59]

Answer:

i cant see it or i would

Explanation:

5 0

4 years ago