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yKpoI14uk [10]
3 years ago
11

A student dissolves 73 g of sodium nitrate, NaNO3, in 100 mL of water and observes a clear, colorless

Chemistry
1 answer:
ohaa [14]3 years ago
4 0
I 90% sure that it would be supersaturated
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What is the maximum mass of ethyl alcohol you could boil with 1000 j of heat, starting from 22 ∘c?
kramer

solution:

1000 = m*2400*(78-22) + m*8.79*10^5

1000= 134400m + 879000m

1000= 1030200m

m = 1000/1013400

m= 1013.4 grams

the final answer is 0.9706 grams


5 0
3 years ago
An alcohol thermometer makes use of alcohol's changing in order to measure temperature. As the temperature goes up.
kotegsom [21]

The question is incomplete, the complete question is;

An alcohol thermometer makes use of alcohol's changing _______ in order to measure temperature. As the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

A.

mass

B.

state

C.

chemical composition

D.

density

Answer:

D.

density

Explanation:

Every kind of thermometer makes use of a change in a particular physical property of a substance as a measure of temperature. It must be a property that changes with temperature.

Density of a substance changes with temperature. Even though the mass of alcohol in glass remains constant, but its volume increases or decreases with change in temperature leading to a change in volume and consequently a change in density of the alcohol in glass. This change is used as a measure of the change in temperature.

4 0
3 years ago
Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?
kykrilka [37]
Ar I did this I think i got it right on edunuty
5 0
3 years ago
An organic fertiliser in which plants are ploughed back into the soil​
Evgen [1.6K]

Answer:

It was called MANURE

Explanation:

Its a type of fertilizer which plant are ploughed back into the soil.

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7 0
3 years ago
How do countries with different currencies trade goods with each other?
8090 [49]

Answer:

D- They use the exchange rate to convert one's Country's currency to another's

Explanation:

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