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larisa86 [58]
2 years ago
9

What is the definition of a chemical change that when two or more substances (molecules) combine to form a new substance (or new

molecules).
Chemistry
2 answers:
gladu [14]2 years ago
7 0
It’s Synthesis reaction
lianna [129]2 years ago
5 0

Answer:

synthesis reaction

Explanation:

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Explain the difference between heat and temperature. Does 1 L of water at 658°F have more, less, or the same quantity of energy
pogonyaev

The answer is- The energy of 1 L water at temperature 347.78 °C have more energy as 1 L of water at temperature 65°C.

Heat is a type of energy that causes a person's body to feel hot or cold.

While the temperature of an object is a parameter that indicates how hot or cold the object is.

How is the temperature in degree Fahrenheit converted to degree celsius?

  • To convert the temperature in Fahrenheit to Celsius, subtract 32 and multiply by 5/9.

°C =( ^0F -32) * \frac{5}{9}

  • Now, heat is a form of energy that flows from hotter object to colder object and temperature indicates whether the object is hot or cold by measuring its average kinetic energy.
  • Now, the given temperature of 1 L water is 658 °F. This temperature in degree celsius is calculated as-

°C = (658 F-32) *\frac{5}{9} = 347.78 \° C

  • Now, higher the temperature, higher is the energy of water. Thus, the energy of 1 L water at 347.78 °C have more energy as 1 L of water at 65°C.

To learn more about heat and temperature, visit:

brainly.com/question/20038450

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3 0
2 years ago
Calculate the number of joules needed to change the temperature of 40.0 g of water from 33.0 degree c to 43.0 degree c
nikdorinn [45]

Answer:

c

Explanation:

7 0
2 years ago
How many calories are absorbed in a process that absorbs 0.128 joules?
Y_Kistochka [10]
The answer is A :) your welcome hope this helps
3 0
3 years ago
Determine the formula weight of BeCl₂.
tia_tia [17]
Be= Beryllium= weight 9.01
Cl= Chlorine= weight 35.45
Since there are 2 Chlorine, you have to add Chlorine twice.
9.01 + 35.45 + 35.45= 79.91

Answer: 79.91
(This answer does not include sig.figs)
4 0
3 years ago
Explain why the elements of groups 1 and 7 are mostly used in<br> the form of compound
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Group 1 and group 7 of element group consists of alkali metal, which are generally combined with other elements in nature, so they have properties of compound
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2 years ago
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