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Vera_Pavlovna [14]
2 years ago
9

Isotopes of an element differ due to the number of.

Chemistry
1 answer:
Alchen [17]2 years ago
7 0

Answer:

Neutrons

Explanation:

Isotopes are variations of an element that differ from the number of neutrons.

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Determine the amount of heat energy in joules required to raise the temperature of 7.40g of water from 29.0OC to 46.0 OC.
valina [46]

Answer: The amount of heat energy in joules required to raise the temperature is 526 Joules

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed = ?

m= mass of substance = 7.40 g

c = specific heat capacity = 4.184J/g^0C

Initial temperature of the water = T_i = 29.0°C

Final temperature of the water = T_f  = 46.0°C

Change in temperature ,\Delta T=T_f-T_i=(46.0-29.0)^0C=17.0^0C

Putting in the values, we get:

Q=7.40g\times 4.184J/g^0C\times 17.0^0C

Q=526J

The amount of heat energy in joules required to raise the temperature is 526 Joules

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In general how are word equations written to describe chemical equations
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 <span>chemicals reacting are written on the left, what is formed is written on the right after the = sign 

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