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Vlad1618 [11]
3 years ago
8

Velocity requires which 2 things?

Chemistry
2 answers:
Nezavi [6.7K]3 years ago
6 0
Its b ()(-(/(:)/(/;:
scoundrel [369]3 years ago
5 0
Direction and speed. Explanation: Velocity is a vector quantity, meaning that direction matters as opposed to speed, which is a scalar quantity.
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Can some atoms exceed the limits of the octet rule in bonding? If so, give an example.
harkovskaia [24]

Answer:

Yes. Example: <u>Sulfur hexafluoride (SF₆) molecule</u>

Explanation:

According to the octet rule, elements tend to form chemical bonds in order to have <u>8 electrons in their valence shell</u> and gain the stable s²p⁶ electronic configuration.

However, this rule is generally followed by main group elements only.

Exception: <u>SF₆ molecule</u>

In this molecule, six fluorine atoms are attached to the central sulfur atom by single covalent bonds.

<u>Each fluorine atom has 8 electrons in their valence shells</u>. Thus, it <u>follows the octet rule.</u>

Whereas, there are <u>12 electrons around the central sulfur atom</u> in the SF₆ molecule. Therefore, <u>sulfur does not follow the octet rule.</u>

<u>Therefore, the SF₆ molecule is known as a </u><u>hypervalent molecule</u><u> or expanded-valence molecule.</u>

6 0
3 years ago
Please help will give 30 points.
vredina [299]

Answer:

Dependent variable: If calcium is given, then bone strength will increase.

Explanation:

3 0
3 years ago
The total mass of reactants and products is _______ during a chemical reaction
SIZIF [17.4K]

Answer: The total mass of reactants and products is the same during a chemical reaction.

Explanation:

the total mass of reactants is equal to the total mass of products.

5 0
3 years ago
Classify the following items based on the type of polymer they are made from: raincoats and leather shoes.
Karolina [17]
In order to clasify these based on the type of polymer they are made from, we can say that B. <span>Leather shoes are made from natural polymers; raincoats are made from synthetic polymers, is the most accurate option from the ones you are giving me. Hope this is useful</span>
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3 years ago
What are two versions of genes called and how are they diffrent?
Stolb23 [73]

Answer with Explanation:

Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits. Since human cells carry two copies of each chromosome they have two versions of each gene.

8 0
2 years ago
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