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Alona [7]
3 years ago
12

Which one is the best explanation of energy

Chemistry
2 answers:
Rudik [331]3 years ago
8 0
Hello! :)

Energy, definition; Power derived from the utilization of physical or chemical resources, especially to provide light and heat to work machines.

Hope this helps >.<
Dmitriy789 [7]3 years ago
3 0

Answer:

Explanation:

Energy is defined as the capacity or ability to do work such as moving an object against a force, like frictional force. There are two main type of energy that are:

  1. Potential energy , it is denoted with symbol U. It is a stored energy or energy which is due to it's position. For example, energy stored in a ball when it is taken to the building top.
  2. Kinetic energy, it is denoted as K.E. . It is the energy that an object posses due to it's motion. For example, collision of pool balls.  
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Answer:

2 only

Explanation:

Electrons are filled in atoms according to the Aufbau principle. Electrons are filled into lower energy orbital before the filling of higher energy orbitals and this sequence must be followed in filling electron orbitals.

The order of arrangement of energy levels may be shown as follows; 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p. This implies that 4f>6s, hence 6s is filled before 4f.

Also, the 6p level > 5d level hence this is the correct option. You must fill the 5d level before you feel the 6p level.

7 0
3 years ago
Which of the following statements is true about what happens during a chemical reaction?
tiny-mole [99]

Answer: The correct option is A.

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For the formation of products, the bonds of the individual reactants must be broken and the bonds of the products must be formed.

For example: Formation of water from hydrogen gas and oxygen gas. Reaction follows:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)

The Bonds of hydrogen and oxygen molecule are broken and new bonds between hydrogen and oxygen atoms are formed to give water molecule.

5 0
2 years ago
Read 2 more answers
When you convert to you remove the placeholder zeros
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3 years ago
= 25 X 5 = (use the correct number of sig figs)
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Answer:

1.25 *10^2

Explanation:

25*5 = 125

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The speed of Train A is 88 km/hr, and the speed of Train B is 96 km/hr. Based on this information, which of the following statem
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