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Crazy boy [7]
3 years ago
13

When you test starch with Barfoed’s reagent, what would be the answer, positive or negative?

Chemistry
1 answer:
rewona [7]3 years ago
7 0

Answer:

It would test positive.

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An atom has 18 neutrons and 17 proton. a) How many electrons are in this atom ​
Paul [167]

Answer:

17 electron

Explanation:

because the number of the proton and number of electron is equal if ther is no charge

7 0
3 years ago
If an atom has 15 protons, 14 neutrons, and 16 electrons, what is the atom's electrical charge? A. -2 B. +1 C. +3 D. -1
Amiraneli [1.4K]

The electrical charge of an atom having 15 proton, 14 neutrons and 16 electrons is -1. The correct option is D.

What is an atom?

An atom is the smallest unit of any matter which comprises of central nucleus and electrons revolving around the nucleus in definite energy shells. The atom is made up of protons, neutrons and electrons.

The electrical charge of an atom can be calculated as,

Charge of an atom = number of protons - number of electrons

Charge = 15 - 16 = -1.

The neutrons are neutral and do not contribute to the charge, the protons are positively charged and electrons are negatively charged in an atom.

Therefore, the charge of an atom with 15 protons, 14 neutrons and 16 electrons is -1. The correct answer is option D.

To learn more about atom click on the given link brainly.com/question/6258301

#SPJ9

3 0
2 years ago
Can u please help me name which one it is
Feliz [49]
I think it’s D.
sorry if it’s wrong
3 0
3 years ago
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Explain what happens to water when an object hits it?
defon
When an object hit a large amount of force the water act on the object high force
5 0
3 years ago
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What do cilia and flagella have in common?
12345 [234]

Answer:B

Explanation:

8 0
3 years ago
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