3 years ago

Polar molecules have _____.

Chemistry

2 answers:

Ksju [112]3 years ago

4 0

Answer:

B. Charges ( a slight positive charge on one end, and a slight negative charge on the other).

Slav-nsk [51]3 years ago

4 0

I think it is........... D

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pashok25 [27]

Answer:

Explanation:

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3 years ago

For case 1, what happens when an electron jumps from energy level 1 to energy level 3 in an atom?

BaLLatris [955]

Answer:

Case 1 (energy level): In an atom, an electron jumps from energy level 1 to energy level 3. ... The energy will increase.

Explanation:

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3 years ago

If 1,079.75 Joules of heat are added to 77.75 grams of water, by how many degrees Celsius would the water increase? Assume water

djyliett [7]

Answer:

If 1,079.75 Joules of heat are added to 77.75 grams of water, by 3.32 degrees Celsius the temperature of water will increase

$\Delta T=3.32 C^{0}$

Explanation:

$q = mC\Delta T$

Here , q = heat added / removed from the substance

m = mass of the substance taken

$\Delta T$ = Change in temperature

C = specific heat capacity of the substance

In liquid state the value of C for water is :

$4.18 J/gC^{0}$

Given values :

q = 1079.75 J

m = 77.75 gram

Insert the value of C, m , q in the given equation

$q = mC\Delta T$

on transposing ,

$\Delta T=\frac{q}{mC}$

$\Delta T=\frac{1079.75}{77.75\times 4.18}$

$\Delta T=3.32 C^{0}$

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3 years ago

The least massive of all the alkaline earth metals. Who<br> am I?

Elden [556K]

Answer:argon

Explanation:

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3 years ago

The Sun always shines on half of the Moon. During a new moon, the Moon looks dark.

Sveta_85 [38]

You’re answer is C Explaination if the pit side was facing earth it wouldn’t be a new moon

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3 years ago