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8090 [49]
3 years ago
8

Rewrite each equation below with the delta h value included with either the reactants or he products , and identify the reaction

as endothermic or exothermic
Chemistry
1 answer:
grin007 [14]3 years ago
5 0
I will take a stab at it, but there are not equations, did you forget them?
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What 3 things will you do to dissolve a solid (salt) faster in a liquid (water)
Dmitriy789 [7]

Answer:

There are three ways to make solids dissolve faster: Break the solute into smaller pieces. Stir the mixture. * Heat the mixture.

Explanation:

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6 0
2 years ago
the density of air at ordinary atmospheric pressure and 25 degrees celcius is 1.19 g/L. what is the mass, in kilograms, of the a
riadik2000 [5.3K]
The mass of the air in the room is 50 kg.

V = lwh = 15.5 ft × 12.5 ft × 8 ft = 1550 ft³

1 ft = 12 in × \frac{2.54 cm}{1 in} = 30.48 cm

V = 1550 ft³ ×(\frac{30.48 cm}{1 ft})^{3} = 4.39 × 10⁷ cm ³ = 4.39 × 10⁷mL = 4.39 × 10⁴ L

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Note: The answer can have only 1 significant figure, because that is all you gave for the height of the room.

To the correct number of significant figures, the mass of the air in the room is 50 kg.
6 0
3 years ago
Adiabatic process is a process in which _ is constant (a) temperature (b)volume (c)pressure (d) heat
fomenos

Answer: Adiabatic process is a process in which <u>heat</u> is constant

Explanation:

The processes in which temperature remains constant is called isothermal process.

The process in which Volume remains constant is called isochoric process.  

The process in which pressure remains constant is called isobaric process.

 The process in which no heat is gained or lost by the system, Hence heat remains constant is called as adiabatic process.

Thus option d) heat is correct

3 0
2 years ago
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REY [17]

Answer:

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Explanation:

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