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netineya [11]
2 years ago
14

Which of the following is in the same group as strontium? a Calcium b Chlorine c Xenon d Silver

Chemistry
2 answers:
klasskru [66]2 years ago
6 0

Answer:

Calcium and strontium are in the same group.

Group 2a of the perodic table are the alkaline earth metals

matrenka [14]2 years ago
4 0

Answer:

a. Calcium

Explanation:

Strontium and Calcium are both in the same group, Group 2.

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3 years ago
Kilauea volcano in hawaii emits 200-300 tons of sulfur dioxide into the atmosphere each day. this is an example of?
o-na [289]

Kilauea volcano in Hawaii emits 200-300 tons of sulfur dioxide into the atmosphere each day. This is an example of

  • the impact of natural processes on the earth's environment.
  • air pollution from a natural source.
  • the magnitude of the chemistry associated with the environment.

Kilauea volcano in Hawaii emits noxious compounds of sulfur dioxide and other harmful pollutants as a result of a reaction with atmospheric water vapors and oxygen.

This reaction results in acid rain and volcanic smog which pollutes the air.

Over the years, the volcano has become a potential threat to health as harmful oxides are accelerating respiratory problems and acid rain destroys crops, and also harms water supplies.

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7 0
2 years ago
Which index fossil is most likely to be found in<br> the Allegheny Plateau?
Usimov [2.4K]

Answer:

amphibians

Explanation:

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5 0
3 years ago
The statement “the scientific process is open ended” means:
mina [271]

Answer:

think it helps you

<h2>Explanation:</h2>

<em><u>The statement “the scientific process is open ended” means: Would an element with 7 valence electrons be more or less reactive than an element with 3 valence electrons? Element 1 is a hard dark-red solid</u></em>

4 0
3 years ago
3.
Vsevolod [243]

Answer:

2 half-lives=0.8

6 half-lives= 0.05

Explanation

Half-lives are constant and always decrease by half, implying that the concentration decreases by half at a consistent rate.

3.2/2= 1.6/2= 0.8 is two half-lives

3.2/2= 1.6/2= 0.8/2= 0.4/2= 0.2/2= 0.1/2=0.05 is six half-lives

3 0
3 years ago
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