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zaharov [31]
3 years ago
15

Question 24

Chemistry
2 answers:
artcher [175]3 years ago
7 0
Answer: false
——————-
Brut [27]3 years ago
5 0
False, the energy from your food turns into glucose
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If you wanna get oil to 180 celcius when it starts at 20 how many units of thermal energy is needed?
Zarrin [17]

Answer:

The thermal energy (heat) needed, to raise the temperature of oil of mass  'm' kilogram and specific heat capacity 'c' from 20°C to 180°C  is  160·m·c joules

Explanation:

The heat capacity, 'C', of a substance is the heat change, ΔQ, required by a given mass, 'm', of the substance to produce a unit temperature change, ΔT

∴ C = ΔQ/ΔT

ΔQ = C × ΔT

C = m × c

Where;

c = The specific heat capacity

ΔT = The temperature change = T₂ - T₁

∴ ΔQ = m × c × ΔT

Therefore, the thermal energy (heat) needed, ΔQ, to raise the temperature of oil of mass 'm' kilogram and specific heat capacity, 'c' from 20°C to 180°C  is given as follows;

ΔQ = m × c × (180° - 20°) = 160° × m·c

ΔQ = 160·m·c joules

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3 years ago
Peonathan<br>part tramithhhh<br>dore medha The<br>crocodile or the other people to thespell winter ​
Vinil7 [7]

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harmless

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What would be the mass of a sample containing 0.700 moles of pure tungsten?
kap26 [50]
We must first find the molar weight of Tungsten, found on the periodic table as 183.84g per mole.

We are told to find the mass of a sample containing 0.700 moles of Tungsten, so we can set this up in a multiplication equation and cancel units to find the mass in grams:

\frac{183.84g}{1mol} * \frac{0.700mol}{1} =128.688g

So the answer that is closest to this value is C) 129g.
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How many molecules are in 15 grams of Oxygen gas?
Harrizon [31]

3.01*10^23 molecules


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What type of reaction is
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The answer is B ,synthesis :)
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