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Trava [24]
3 years ago
11

________ properties depend on the amount of material present.

Chemistry
1 answer:
Kamila [148]3 years ago
6 0

Answer: Extensive!

Explanation:

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The change in enthalpy that occurs in the process of converting reactants to products in a chemical reaction is called the _____
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Answer:

∆H or Enthalpy of the reaction

Explanation:

If ∆H is +ve

  • Reaction is exothermic
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If ∆H is -ve

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How much energy is required to change 75 grams of copper at 35 degrees Celsius
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2 years ago
An atom of Iron has at least three different isotopes. What is the difference between an isotope of 55Fe and an isotope of 58Fe?
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The isotopes 55Fe and 58Fe are both Iron, but have a different atomic mass due to the added number of neutrons. Both isotopes have 26 protons, but 55Fe has more neutrons.
6 0
3 years ago
One gallon of gasoline in an automobiles engine produces on average 9.50 kg of carbon dioxide, which is a greenhouse gas; that i
vagabundo [1.1K]

Answer:

The value is U  =1.3908 *10^{11} \  kg

Explanation:

From the question we are told that

mass of carbon dioxide produced by one gallon of gasoline is m  =  9.50 \  kg

The number of cars is N =  40 \  million =  40 *10^{6} \  cars

The distance covered by each car is d =  7930 \ mi

The rate is R  =  23.6 \  mi/ gallon

Generally the amount of gasoline used by one car is mathematically represented as

G  =  \frac{d}{R}

=> G  =  \frac{7930}{23.6}

=> G  =   366 \  gallons

Generally the amount of gasoline used by N cars is

H  =  N  *  G

=> H  =  40*10^{6}  *  366

=> H  = 1.464*10^{10} \  gallons

Generally the annual production of carbon dioxide is mathematically represented as

U  =  m *  H

=> U  =9.50 *   1.464*10^{10}

=> U  =1.3908 *10^{11} \  kg

8 0
4 years ago
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