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netineya [11]
3 years ago
6

Explain why the temperature of water might increase when a solution forms

Chemistry
1 answer:
Setler79 [48]3 years ago
8 0
That is because the water would be the solvent, therefore, something is dissolved into it making it a solution. The solute increase the temperature of the solvent (water). 
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Name the process that separates air into different gases​
Ber [7]

Answer:

<em>fractional distillation</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>most common method for air separation</em><em>.</em>

4 0
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In the molecules below, areas that have a partial negative charge are pink and areas that have a partial positive charge are blu
Kaylis [27]

Answer:

Dipole-dipole interactions

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"Covalent bonds" is <em>wrong,</em> because there are no bonds between the two molecules.

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How would I find the answer?
ELEN [110]

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Kr

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4 0
3 years ago
Two ice skaters push off against one another starting from a stationary position. The 45.0-kg skater acquires a speed of 0.375 m
zalisa [80]

Answer:

The speed of the 60.0 kg skater should be 0.281 m/s

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<u>Step 1: </u>Data given

Mass of skater 1 = 45.0 kg

speed of skater 1 = 0.375 m/s

Mass of skater 2 = 60.0 kg

<u>Step 2:</u> Calculate the speed of skater 2

To solve this problem, we will use 'Conservation of momenton'. This means  the momentum before the push equals the momentum after.

momentum p = m*v

Momentum p(before) = momentum p(after)

m1*v1 = m2 * v2

⇒ with m1 = mass of skater 1 = 45.0 kg

⇒ with v1 = the velocity of skater 1 = 0.375 m/s

⇒ with m2 = the mass of skater 2 = 60.0 kg

⇒ with v2 = the velocity of skater 2 = TO BE DETERMINED

45.0 * 0.375 = 60.0 * v2

v2 = (45.0*0.375)/60

v2 = 0.281 m/s

The speed of the 60.0 kg skater should be 0.281 m/s

6 0
3 years ago
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