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2 years ago

On a hot summer day, air rises most quickly when it is above a

Chemistry

2 answers:

USPshnik [31]2 years ago

7 0

It would be Lake because the water bacteria is evaporating into clouds

NNADVOKAT [17]2 years ago

6 0

Answer:

air rises most quikly above water so i'm confuse it's lake or river

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What physical property difference enabled you to Seperate salt from water?

elena55 [62]

The two techniques for separating an insoluble solid from a liquid are filtration and centrifuging. Filtration relies on the fact that the solid particles are smaller than the filter paper pores which allow the tiny molecules of liquid to pass through. With solids which dissolve in a liquid solvent, evaporation is commonly used to recover the solid and distillation is used to recover the solvent.

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2 years ago

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4. Determine what elements are in the following compounds.

lilavasa [31]

Nitrogen=2, Hydrogen=8, Carbon=1, Oxygen=3

Hydrogen=4, Carbon=2, Oxygen=2

Iron=1, Nitrogen=2, Oxygen=6

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2 years ago

Read the temperatures shown to the nearest 0.5°C. 40 Е с DONE DONE

levacccp [35]

Answer: 37.0 °C , 42.5 °C

Explanation:

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3 years ago

What factor affects the solubility of all solutes, whether solid, liquid, and gaseous? -pressure -temperature -volume -number of

Ratling [72]

Answer:

temperature

Explanation:

The solubility is the maximum amount of the substance that will be dissolved in water given the amount of the solvent at a specif temperatures and thus there are factors in which the solubility depends as the temperatures.

The temperature affects the solids and liquids and pressure the gases. The solubility of the organic compounds also increases with temperature changes.

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2 years ago

7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long

Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

$a=\frac{v-u}{t}$

thus,

$t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds$

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2 years ago