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Mekhanik [1.2K]
3 years ago
7

Which family does barium ba,belong to?

Chemistry
1 answer:
Tema [17]3 years ago
4 0
Alkaline earth metals
group 2 (IIA)
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Leon made a study chart about human-induced changes to
o-na [289]

The question was not well arranged above. It has been arranged in the answer below.

Question:

Leon made a study chart about human-induced changes to the environment.

Environmental Changes Caused by Humans

X Y

Results from introducing harmful substances into the environment

Example: oil spill

Results from natural areas being cleared and replaced by human development

Example: deforestation

Which headings best complete the chart?

X: Habitat Destruction

Y: Pollution

X: Long-Term Changes

Y: Short-Term Changes

X: Short-Term Changes

Y: Long-Term Changes

X: Pollution

Y: Habitat Destruction

Answer:

X: Pollution

Y: Habitat Destruction

Explanation:

From the above question, Leon gave us two variables, X and Y.

The human induced changes were divided into two.

1. Results from introducing harmful substances into the environment

Introducing harmful substances into the environment is also called pollution. And we can represent this as X which is the first variable.

2. Results from natural areas being cleared and replaced by human development.

This description given in number two above whereby land areas are been cleared and replaced by human development has a negative effects on the environment because the vegetation which includes the trees are been cut down and living organisms(animals) will go extinct gradually. This act affect the balance of the ecosystem and it can be referred to as the destruction of the habitat of living organisms

Therefore, the correct headings best complete the chart is :

X: Pollution

Y: Habitat Destruction

8 0
4 years ago
Read 2 more answers
Consider the equilibrium: HCOOH(aq) + F-(aq) <----> HCOO-(aq) + HF (aq) Given that the Ka of HCOOH = 1.8 x 10-4 and the Ka
Aleks [24]

Hey there!:

K = Ka * Kb / Kw

Ka = 1.8*10⁻⁴

Kb = 10⁻¹⁴ / 6.8*10⁻⁴

K =  1.8*10⁻⁴ * ( 10⁻¹⁴/ 6.8*10⁻⁴ ) * ( 1 / 10⁻¹⁴ )

K =  = 1.8 / 6.8

K = 0.265

Answer A

Therefore:

K is less than on the forward reaction is not favorable .


Hope That helps!

8 0
4 years ago
Which federal agency makes sure federal wildlife laws are followed?
goldfiish [28.3K]

Answer:

us fish and wildlife service

Explanation:

the 2nd choice

8 0
3 years ago
Read 2 more answers
I JUST GOT RICKROLLED WHAT DO I DO PLEEEAASSEEEE HELP
soldi70 [24.7K]

Answer:

contemplate your life...what you are doing here...what it means to live in our society...THEN...pass it on :0

Explanation:

mind blown ~\_(* - *)_/~

8 0
4 years ago
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Pls help 6th grade science
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It’s A because it running more faster the the zebra
8 0
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