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Julli [10]
2 years ago
13

How does heat transfer through conduction?

Chemistry
1 answer:
Nimfa-mama [501]2 years ago
7 0

Answer:

from the warm object to the cool object

Explanation:

Think of heat as a straight line, and the warmer the object the higher its gradient. Now, if you have cold object is lower in heat energy, the heat energy from the warm object will go down the gradient to the cool object. Note, in conduction, there must a contact between the two objects.

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What is true of a reaction that has reached equilibrium?
BabaBlast [244]

The correct option is A.

A chemical reaction is said to have reached an equilibrium stage if the rate of reaction of the forward reaction is equal to the rate of reaction of the reverse reaction. Two way arrows are usually used to depict equilibrium reactions. These arrows indicate that the chemical reaction can move both ways. At the equilibrium point the concentrations of both the reactants and the products are equal.

4 0
2 years ago
Read 2 more answers
Use the table on the right to calculate each required quantity.
k0ka [10]

a. 35.8 KJ

b. 871 g

c. Fe

..........................................................................................

3 0
3 years ago
The enthalpy of combustion of gasoline (C8H18) is 5471 kJ mol-1. How much heat will be produced by burning 1 gallon of gasoline
kvv77 [185]

Answer:

127529 KJ

Explanation:

Since 1gallon = 3.78 L= 3780 ml

The density of C8H18= 0.703 g/mL

Density = mass/volume

Mass= Density × volume

Mass= 0.703 g/mL × 3780 ml

Mass= 2657.34 g

Molar mass of C8H18= 114 g/mol

Number of moles= mass/molar mass

Number of moles= 2657.34/114

Number of moles= 23.31 moles

Since 1 mole evolved=5471 kJ

23.31 moles = 5471 kJ × 23.31 = 127529 KJ

8 0
2 years ago
You have 1.6 x10 21 atoms of oxygen, what is the mass of that number of atoms
iren [92.7K]

Answer: 166.023×1023

Explanation:

Mass of 6.023×1023 atoms of oxygen = gram atomic mass of oxygen.

Mass of 6.023×1023 atoms of oxygen = 16g

∴ Mass of 1 atom of oxygen =166.023×1023

6 0
3 years ago
How do scientist use radioactive decay to date fossils and artifacts
zhuklara [117]
Scientists use radioactive decay to date fossils and artifacts through a process called "carbon dating," which measures the amount of carbon still left in a dead object. The less carbon that exists, the longer that animal or plant as been dead. 
3 0
2 years ago
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