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alexandr402 [8]
3 years ago
9

3 sources of background radiation and one source of radiation that is not condisderd background radiation

Chemistry
1 answer:
skad [1K]3 years ago
5 0
Natural sources. Natural sources of background radiation include: Cosmic rays - radiation that reaches the Earth from space. Rocks and soil - some rocks are radioactive and give offradioactive radon gas.
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A spectator ion is (Select all that apply.) a. an ionic component of a reactant that is unchanged by the reaction your eye, b. c
DENIUS [597]

Correct Question:

A spectator ion is (Select all that apply.)

- a piece of french fry contaminating the reaction mixture

- an ionic component of a reactant that is unchanged by the reaction

-in this experiment, nitrate ion

- your eye, carefully watching the progress of the reaction

Answer:

- an ionic component of a reactant that is unchanged by the reaction

Explanation:

A spectator ion is an ion that exists as a reactant and a product in a chemical equation. A spectator ion is one that exists in the same form on both the reactant and product sides of a chemical reaction.

Spectator ions are ions that are present in a solution but don't take part in the reaction. When reactants dissociate into ions, some of the ions may combine to form a new compound. The other ions don't take part in this chemical reaction and are therefore called spectator ions.

The correct option is therefore the option;

- an ionic component of a reactant that is unchanged by the reaction

5 0
3 years ago
A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
DochEvi [55]
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
4 0
3 years ago
What I need to know is what is the question talking about.
insens350 [35]
Can you type it out the picture is too blurry to read, sorry. 
4 0
2 years ago
What are some properties of matter that can be identified without testing or measuring
kiruha [24]
Physical change - No change of matter in this phase
chemical change - All types of phase change occur here
8 0
3 years ago
5. Which of the following is NOT a colligative property of a solution? (1 point) boiling point elevation supersaturation vapor p
LUCKY_DIMON [66]
142 ml
that is the anwser
3 0
3 years ago
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