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7nadin3 [17]
3 years ago
15

Please help with 4 and 5!

Chemistry
1 answer:
Rashid [163]3 years ago
5 0
B,c hop you git a good grad
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True or False? pH can only be between 1 and 14.TrueFalse
Alika [10]

Answer: The sentence given is false.

Explanation:

The question requires us to determine if the sentence given by the question ("pH can only be between 1 and 14") is true or false.

The pH value is matematically defined as:

pH=-log\lbrack H^+\rbrack

where [H+] is the concentration of H+ ions in solution.

If the concentration of H+ is too high, such as in an acid battery, the pH of a solution can reach 0. However, its value cannot be negative. Therefore, we can say that the pH scale ranges from 0 (very acidic medium) to 14 (very alkaline medium).

Considering the sentence given, we can say that it is false.

7 0
1 year ago
Drag the tiles to the correct boxes to complete the pairs.
Sophie [7]

Answer:

Explanation:

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3 years ago
The atomic weight of an atom is the sum of the mass of the particles in the nucleus of the atom. These particles are called?
Ludmilka [50]

Answer:

c) neutrons and protons

Explanation:

The nucleus of the atom contains only neutrons and protons. Electrons are not in the nucleus but outside the nucleus in 'atomic orbitals'.

5 0
2 years ago
(N2 &amp; O2 &amp; Ar &amp; CO2...) <br> an element compound or mixture?
ololo11 [35]

Answer: Mixture

Explanation:

Element is a pure substance which is composed of atoms of similar elements.

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present. Example: Air which conatins a mixture of N_2, O_2 , Ar and CO_2

8 0
3 years ago
How does a Camel prevent the loss of water from their body?​
Schach [20]

Camels lose less water through their urine and feces than many other mammals. Their kidneys concentrate water heavily, leading to salty urine. The intestines also reabsorb water from intestinal material as it is digested, so dry feces are produced.

7 0
3 years ago
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