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Talja [164]
3 years ago
5

Why might a scientist repeat an experiment if he/she did not make a mistake in the first one? An experiment should be repeated t

o A) increase income for increased work. B) prove how interesting the study was. C) ensure the results are accurate. Eliminate D) eliminate steps and save time.
Chemistry
2 answers:
makvit [3.9K]3 years ago
5 0

The answer is C. To ensure the results are accurate.

WINSTONCH [101]3 years ago
5 0

Answer: The answer is C.

Explanation: An experiment must be repeatable, so doing it multiple times can verify the work is correct.

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Name an element that has the same number of electron energy levels as Calcium (Ca)?
Lerok [7]

Answer:

aluminum?

Explanation:

6 0
3 years ago
What are all the intermolecular forces present in a sample of BrF?
yuradex [85]

Answer:

dipole-dipole

Explanation:

Intermolecular forces exists between the molecules of a substance in a particular state of matter.

The type of intermolecular forces present in  a substance is determined by the electronegativity difference between the atoms that compose the substance.

There is a non zero electronegativity difference  between Br and F hence the molecule is polar and the intermolecular forces between the molecules of BrF are dipole-dipole forces.

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Sulfur.
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7 0
3 years ago
Intermolecular forces do not have any effect on determining the physical properties of
djyliett [7]

Answer:

False

Explanation:

The physical properties of melting point, boiling point, vapor pressure, evaporation, viscosity, surface tension, and solubility are related to the strength of attractive forces between molecules. These attractive forces are called Intermolecular Forces.

6 0
3 years ago
Which term names the group of organisms able to interbreed and produce fertile offspring?
vladimir2022 [97]

Answer:

Species

Explanation:

Species is the group of organisms able to interbreed and produce fertile offspring.

Let's break down each word in the question:

"Organisms" means living thing. It can be a plant or animal like we usually think of, but it also includes the really small single-celled living things like some bacteria.

"Interbreed" means to mate with each other.

"Fertile" means that the living thing can also have babies.

"Offspring" means the children that are born.

"Fertile offspring" means that the children that are made must be able to have babies of their own. For example, if a frog and a bird could interbreed, they might produce offspring (children). But, if those frog-birds cannot also have children, then frog-bird is not a species.

7 0
3 years ago
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