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White raven [17]
3 years ago
5

Give the nuclear symbol (isotope symbol) for the isotope of bromine, Br, that contains 46 neutrons per atom.

Chemistry
1 answer:
Doss [256]3 years ago
5 0
Bromine has 35 protons, and in this case 46 neutrons, so 35 + 46 = 81
Therefore, the symbol is (subscript 35)(superscript 81) Br.
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At 298 K, oxygen (O2) and ozone (O3) have different properties because their
Paha777 [63]

Answer: (3) molecules have different molecular structures.


Explanation:


1) Oxygen (O₂) and ozone (O₃) are allotropes of each other.


2) Allotropes are different structural forms of a same element with different structures and properties, when they are in the same state: solid, liquid, gas.


3) The bonds is what define the structure and properties of the substances, so since O₂ has only two bonds and O₃ has three bonds, the properties and behaviors of the element are different.


4) Other example of allotropes are graphite and diamond: two different forms of carbon. Both, graphite and diamond are formed only by carbon atoms, but they are bonded differently so, as you know, diamond and graphite have different properties: graphite is very soft while diamond is one of the hardest known substances.

5 0
3 years ago
Oxygen is important in the oxidation of glucose because it ____________________________. Oxygen is important in the oxidation of
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can be oxidized to form carbon dioxide

Explanation:

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  • Oxidation involves the addition of oxygen.
  • Any specie that undergoes oxidation, is a reducing agent and it is said to be oxidized.
  • Oxygen is oxidized to form carbon dioxide and water.

Learn more:

Respiration and photosynthesis brainly.com/question/3437832

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3 0
3 years ago
4. Which of the following statements correctly describe atoms? Select all that apply.
mestny [16]

Answer:

A, B, and C

Explanation:

Atoms do in fact have mass! They are also the basic unit of a chemical element. Matter is in fact made of atoms, but atoms do not take up space.

Atoms are filled with empty space, excluding it out from the rest of the answers.

So yes, A, B, and C should be the correct answers

6 0
3 years ago
A balloon inflated in a room that is 34 C has a volume of 5.00 liters. The room is then heated to a temperature of 68 C. What is
Eduardwww [97]

Answer:-

5.554 litres

Explanation:-

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Final temperature T 2 = 68 C + 273 = 341 K

Using the relation of Charles Law (V 1 / T 1) = (V 2 / T 2)

New Volume V 2 = V1 x T2 / T1

Plugging in the values

V2 = 5.00 litres x 341 K / 307 K

= 5.554 litres.

3 0
3 years ago
Sara is making an omelet. She cracks open 6 eggs and places them in a bowl. She adds some milk, salt, and pepper to the eggs and
Sunny_sXe [5.5K]

Answer:  Well then I guess Sara is having a good breakfast

Explanation: what was the point of this question?

6 0
3 years ago
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