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bekas [8.4K]
3 years ago
15

1. Marque a alternativa que melhor explica o que aconteceu com o átomo ao longo da história.

Chemistry
2 answers:
sergey [27]3 years ago
4 0

Answer: The answer is B.

Vera_Pavlovna [14]3 years ago
3 0
The correct answer is B
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Which of the following was not a big ideal of chemistry
ikadub [295]

Answer:

I think the answer is gravity

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2 years ago
Write the condensed electron configurations for the Ca atom. Express your answer in condensed form as a series of orbitals. For
umka21 [38]

Answer:

[Ar] 4s²

Explanation:

Ca is the symbol for Calcium. It is the 20th element and it has 20 electrons.

The full electronic configuration for calcium is given as;

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The condensed electronic configuration is given as;

[Ar] 4s²

6 0
2 years ago
Match the following
irina1246 [14]

The order would be coefficient, law of conservation of mass, products, and reactants respectively.

<h3>Word matching</h3>

The number written in front of a chemical symbol in an equation is called a coefficient.

The total mass of a system being unchanged is known as the law of conservation of mass

The substances made in chemical reactions are called products.

The starting materials in chemical reactions are called reactants.

More on reactions can be found here: brainly.com/question/17434463

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3 0
2 years ago
Gas is $2.50/gal at Station A and 85 cents/L at Station B. A) Convert the cost of gas at Station B to $/gal. B) At which station
SVETLANKA909090 [29]

Answer:

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gas wiuld be heaper to buy from the station A.

Explanation:

As 85 cents/L is more than $2.5/gallon therefore buying gas from station A would be cheaper than the other one.

8 0
3 years ago
If you boil a sample of water, the steam that results will have: Select the correct answer below: less mass than the water more
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Answer: less mass than the water

Explanation:

8 0
3 years ago
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