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Keith_Richards [23]
3 years ago
7

Why is it impossible to ever prove that a hypothesis is true?

Chemistry
1 answer:
maria [59]3 years ago
4 0

Answer: A

Explanation:

Hypothesis have to be based on previous knowledge and have to be able to be tested but the problem is most hypothesis can’t be explained so it’s impossible to prove a hypothesis correct because science uses inductive reasoning

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A neutral atom becomes a positive ion when it
Alexeev081 [22]

Answer:

Neutral atoms can be turned into positively charged ions by removing one or more electrons.

Explanation:

If there is an atom that has 9 protons and 9 electrons, removing an electron from the atom will gain a postive charge.

8 0
3 years ago
Read 2 more answers
Match the term with its description.
Yuliya22 [10]

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Hope that helps!!! :)



Chlorophyll is a green pigment present in all plants, that absorbs light to provide energy for photosynthesis.




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7 0
3 years ago
How many sub-energy levels does the 2nd MEL have?
DedPeter [7]

Answer:

n=  | Shell            |       Maximum Number of Electrons

1    | 1st Shell      |      2

2   | 2nd Shell      |      8

3   | 3rd Shell        |      18

4   |  4th Shell        |      32

Explanation: cause :)

5 0
3 years ago
Describe where a hydrogen bond can form among water molecules.
stiv31 [10]

Answer:

                 In water hydrogen bonding formed between partially negative oxygen and partially positive hydrogen atoms.

Explanation:

                  Hydrogen bond is a partially electrostatic attraction between hydrogen (H), which is bonded to a more electronegative atom such as nitrogen (N), oxygen (O) or fluorine (F), and another adjacent atom bearing a lone pair of electrons.

                   In water molecule hydrogen and oxygen have difference in electronegativity, due to which dipoles are form. One is partial positive on hydrogen atom and other is partial negative on oxygen atom. The electrostatic attraction occur between two oppositely charged poles which is known as hydrogen bonding.

4 0
3 years ago
The temperature at which the vapor pressure of a liquid is equal to the external pressure is called the _____ point.
jeyben [28]
It is B. Boiling point
4 0
3 years ago
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