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4 years ago

A hypothisis is tested by ?

2 answers:

hjlf4 years ago

8 0

Answer: A hypothesis is tested by statistics as to determine that a given hypothesis is true or if the sample of a data stands true for the population or not..but the smaller the -value, the stronger the evidence there is to compare the -value to an acceptable significance value.

Alright! Hope this helps you, hon! :)

horsena [70]4 years ago

5 0

Answer:

conclusion

Explanation:

becaus hsjdjdjejsjdjdhs

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QUESTION 4

Katyanochek1 [597]

Parasitism relationship, where one takes something (leeches off) the other

8 0

3 years ago

Read 2 more answers

What is the definition of an independent and dependent variable?

sladkih [1.3K]

Answer:

The Independent variable is the variable which does not rely of the other variables. It stays the same.

The Dependent variable is the variable that is measured or changed.

Explanation:

The Independent variable is usually the x value of a table or graph

the Dependent variable is usually the y value of a table or graph

I hope this helps!

3 0

3 years ago

Describe the redox reaction. Check all that apply 2AI(s) + 3ZnCI2(g) → 3Zn(s) + 2AICI3(aq).

Inga [223]

Answer:

Zinc is reduced.

The oxidation number of chlorine does not change.

Aluminum is oxidized.

Explanation:

For the reaction:

2AI(s) + 3ZnCI₂(g) → 3Zn(s) + 2AICI₃(aq).

For the elements in the reactants side:

Al has (0) oxidation state and converted to (+3) oxidation state in the products (AlCl₃), which means Al is oxidized and it is the reducing agent.

So, we can check that: Aluminum is oxidized.

Zn has the oxidation state (+2) in the reactants side (ZnCl₂) and converted to (0) in the products side (Zn), which means that Zn is reduced and it is the oxidizing agent.

So, we can check that: Zinc is reduced.

and can not check: Zinc is the reducing agent.

The oxidation state of Cl does not change, it is the same in both sides (-1).

So, we can check: The oxidation number of chlorine does not change.

and can not check: Aluminum atoms transfer electrons to chlorine atoms.

So, the choices will be:

Zinc is reduced.

The oxidation number of chlorine does not change.

Aluminum is oxidized.

4 0

4 years ago

Read 2 more answers

What evidence led to the conclusion that cathode rays had a negative charge?

max2010maxim [7]

In Thomson's cathode-ray experiment,He sucked all of the air out of the tube, so only the ray was inside. He then concluded that the ray was negatively charged because the ray came from the cathode ray and went to the positively charged anode ray, so the cathode had to be negative or else it would have deflected away from the anode.

Hope this helped ! Let me know if you need more information ! :)

4 0

4 years ago

What kind of adaptation are the ears on a rabbit

Jet001 [13]

Answer:

Structural

Explanation:

Structural adaptions are the physical features of an organism that enable them to survive in their environment.

The rabbit’s long ears are an essential survival tool. They help the rabbit listen to the faint sounds made by nearby predators and their shape helps to detect sound direction accurately.

Also, if the rabbit lives in a hot desert, the large ears radiate heat, allowing it to control its temperature.

8 0

3 years ago