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Lapatulllka [165]
3 years ago
6

An atom Q contains 19 electrons, 19 protons and 20 neutrons. What is Q

Chemistry
2 answers:
Mariana [72]3 years ago
8 0

Answer:

Potassium is the answer

ZanzabumX [31]3 years ago
3 0
Answer: Potassium

Explanation: Potassium is the chemical element with 19 electrons, 19 protons and 20 neutrons.

Please mark me Brainliest if you think that had answer this question in a better way.

Thank you,
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Gravitational forces exerted on any two____in the universe
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Answer:-

Gravitational forces exerted on any two <em><u>bodies</u></em> in the universe

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6 0
3 years ago
In order for a process to be spontaneous, Multiple Choice the entropy of the surroundings must increase. the entropy of the surr
Crazy boy [7]

Answer:

The correct answer is entropy change of the surrounding plus the entropy change of the system must be positive.

Explanation:

The term entropy is a state function.Entropy can be defined as the disorder or randomness of the molecules in a system.

 A spontaneous reaction is a type of reaction which deals with the release of free energy.The change of free energy in case of spontaneous reaction is always negative.

 According to the second law of thermodynamics a spontaneous reaction will occur in a system if the total entropy of both  system and surrounding increases during the reaction.

8 0
3 years ago
Suppose an egyptian mummy is discovered in which the amount of​ carbon-14 present is only about oneone​-fifthfifth the amount fo
poizon [28]

We are given the following equation:

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t = 13,235.51 years

 

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3 0
3 years ago
Which of the following statements about enzymes is true?. a. Enzymes are able to heat up molecules so that they can react.. b. E
taurus [48]
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hope that helps 
5 0
3 years ago
Read 2 more answers
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