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Alisiya [41]
2 years ago
15

What would be a correct unit of measurement for velocity?

Chemistry
1 answer:
laiz [17]2 years ago
7 0
The correct answer is meters/seconds
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In a chemical reaction, the mass of the products ____.
Pani-rosa [81]
In a chemical reaction, the mass of the products<span> is less than the mass of the reactants.
the first step in most stoichiometry problems is to <span>convert given quantities to moles.

Hope this helps! If it did, pls marky me brainly thank, and 5star me</span>

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5 0
3 years ago
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Is chlorine a substance or a mixture
WARRIOR [948]

Answer:

its a substance

Explanation:

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2 years ago
The specific heat of ethanol is 2.44 J/g ֯C. How many kJ of energy are required to heat 50.0 grams of ethanol from -20 ֯C to 68
Aliun [14]

Answer:

Heat energy required (Q) = 10.736 KJ

Explanation:

Given:

Specific heat of ethanol (C) = 2.44 J/g °C

Mass of ethanol (M) = 50 gram

Initial temperature (T1) = -20°C

Final temperature (T1) = 68°C

Find:

Heat energy required (Q) = ?

Computation:

Change in temperature (ΔT) = 68°C - (-20°C)

Change in temperature (ΔT) = 88°C

Heat energy required (Q) = mC(ΔT)

Heat energy required (Q) = (50)(2.44)(88)

Heat energy required (Q) = 10,736 J

Heat energy required (Q) = 10.736 KJ

5 0
3 years ago
A ____________ is a physical combination of things that can be separated. mixture compound
Degger [83]

Answer:

mixture

Explanation:

A mixture is something that can be separated, while a compound is something that can be separated (unless by chemicals).

An example of a mixture would be trail mix. You can separate the components without using chemicals.

~theLocoCoco

4 0
3 years ago
If atoms are not destroyed, what happens to them
Snowcat [4.5K]

The 1st law of thermodynamics doesn't  specify that matter can be created nor destroyed, but that the total amount of energy in a closed system cannot be created nor destroyed though it can be changed from one form to another.

7 0
3 years ago
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