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Ivenika [448]
2 years ago
11

How much kinetic energy does a 2kg object have if it is traveling at a velocity of 2m/s?

Chemistry
1 answer:
Kazeer [188]2 years ago
4 0

Answer:

Given, Mass of an object, m = 2kg

velocity, v = 2m/s

We have,

KE = 1/2 m v²

= 1/2 × 2 (2)²

= 1/2 × 8

= 4J

Hence, 4J is the required Kinetic energy.

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What is an example of how to supply activation energy to begin reaction
Sergio039 [100]

Heating the reaction flask on a hot plate is an example of supplying activation energy to begin a reaction.

Explanation:

<u>Definition:</u>

Activation energy is defined as the minimum amount of energy required to start a particular chemical reaction.

For example: When hydrogen and oxygen are mixed together it does not immediately start the reaction to form water. So, to start the reaction a small electric spark is provided or it is heated to provide some energy. This energy causes the molecules of hydrogen and water to react, thus producing even more molecules to react and finally water is formed.

Here the electric spark or the heat provided is the activation energy.

5 0
3 years ago
Based on the context of paragraph 4, what are salient factors?
Stella [2.4K]

Answer:

importent factors

Explanation:

The salient facts about something or qualities of something are the most important things about them: She began to summarize the salient features/points of the proposal. The article presented the salient facts of the dispute clearly and concisely. SMART Vocabulary: related words and phrases. Very important or urgent.

4 0
3 years ago
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HELP!!!!!! DUE IN 1 HOUR
Gnesinka [82]

Answer:

Group 17, 2, 7, 7 electrons

Explanation:

5 0
2 years ago
What is the empirical formula for c12h24o6? what is the empirical formula for c12h24o6? ch2o cho c2h5o c2h4o cho2?
stira [4]

Empirical formula: The formula consist of proportions of the elements which is present in the compound or the simplest whole number ratios of atoms.

Now, molecular formula is equal to the product of n (ratio) and empirical formula.

Molecular formula = n\times empirical formula    (1)

molecular formula =C_{12}H_{24}O_{6} (given)

Since, 6 is the smallest subscript in above molecular formula to get the simpler whole number of atoms. Therefore, divide all the subscripts i.e. number of carbon atoms (12), number of hydrogen atoms (24) and number of oxygen atoms (6) by 6.

empirical formula becomes C_{2}H_{4}O

Thus, according to the formula (1)

C_{12}H_{24}O_{6} = 6\times C_{2}H_{4}O

Hence, empirical formula of given molecular formula is C_{2}H_{4}O


4 0
3 years ago
What is the name of the compound BrF
Rashid [163]

Bromine


hope that helps :)

7 0
2 years ago
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