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nalin [4]
3 years ago
8

The group that shows the effect of the variable being tested is called the

Chemistry
2 answers:
zavuch27 [327]3 years ago
8 0
The groups are called experimental groups
Svetradugi [14.3K]3 years ago
4 0
Experimental Group if I'm correct.
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When a hydrochloric acid solution is combined with a potassium hydroxide solution, an acid-base reaction occurs Write a balanced
Svetach [21]

Answer:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

Explanation:

Hydrochloric acid is an acid because it releases H⁺ in an aqueous solution.

Potassium hydroxide is a base because it releases OH⁻ in an aqueous solution.

When an acid reacts with a base they form a salt and water. This is a neutralization reaction. The neutralization reaction between hydrochloric acid and potassium hydroxide is:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

7 0
3 years ago
Explain why are hydrogen and oxygen considered as wheares water as a compound?
Elina [12.6K]
Hydrogen and oxygen are different elements.

when two or more elements combine, they form a compound

hence, two molecules of hydrogen and one molecule of oxygen combine to form water as a compound
3 0
3 years ago
The activity of a certain isotope dropped from 3200 ci to 800 ci in 24.0 years. what is the half-life of this isotope (in years)
Alexxx [7]
Ln(800/3200) = - kt
t = 24 years.
ln(0.25) = -k*24
(- 1.3863) = -k*24
1.3863  / 24 = k
0.05776 = k

ln(0.5) = -k*t
-0.6931 = - 0.05776 t
12 = t

I don't know if you can just look at the question and know the answer. If 24 years is a quarter life then is it obvious that the 1/2 life is 12 years? It might be, but the method I've used works for sure. 


3 0
3 years ago
Why can water molecules store energy in more ways than neon atoms?
Lubov Fominskaja [6]

Answer:

B . Water molecules can collide with other particles more than neon atoms can.

8 0
2 years ago
Nicole Parkes her car at target and walks 150 ft north to get to the store. on her way back to her car, she walks 50 ft before p
Mice21 [21]

Answer: Her distance is 100 feet her displacement is 50 feet

Explanation:

7 0
3 years ago
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