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Lisa [10]
3 years ago
12

PH measures the concentration of Hydrogen ions in a substance.a. Trueb False​

Chemistry
2 answers:
tekilochka [14]3 years ago
7 0

Answer:

true

Explanation:

pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.

DIA [1.3K]3 years ago
3 0

Answer:

True

Explanation:

if you take p of anything it becomes pSomething. like p of cats is pCats....p of dogs is pDogs...therefore here pH is p of hydrogen ions (H is the atomic symbol for hydrogen) and therefore pH does measure concentration of free hydrogen ions in substance.

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Why do carbs and fats have the same atoms, but store different amount of energy?
cestrela7 [59]
Carbs have larger molecules
7 0
3 years ago
What is the percent by mass of water in the hydrate? %
dusya [7]

Sorry I can't tell you the answer but, I can tell you something...

Dividing the mass of the water lost by the mass of hydrate used is equal to the fraction of water in the compound. Multiplying this fraction by 100 gives the percent water in the hydrate.

How to find it?

Divide the mass of the water lost by the mass of hydrate and multiply by 100. The theoretical actual percent hydration percent water can be calculated from the formula of the hydrate by dividing the mass of water in one mole of the hydrate by the molar mass of the hydrate and multiplying by 100.

8 0
3 years ago
Consider the nuclear equation below. Superscript 235 subscript 92 upper U right arrow superscript 4 subscript 2 upper H e. What
Leto [7]

Answer: The nuclide symbol of X is ^{231}_{90}\textrm{Th}

Explanation:

The given nuclear reaction is a type of alpha decay process. In this process, the nucleus decays by releasing an alpha particle. The mass number of the nucleus is reduced by 4 units and atomic number is also decreased by 2 units. The particle released is a helium nucleus.

The general equation representing alpha decay process is:

_{Z}^{A}\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\textrm{He}

For the given equation :

^{235}_{92}\textrm{U}\rightarrow ^{A}_{Z}\textrm{X}+^4_2\textrm{He}

As the atomic number and mass number must be equal on both sides of the nuclear equation:

^{235}_{92}\textrm{U}\rightarrow ^{231}_{90}\textrm{Th}+^4_2\textrm{He}

Thus the nuclide symbol of X is ^{231}_{90}\textrm{Th}

5 0
3 years ago
1.- ¿Cuál es la densidad del corcho, si un cubo que mide 1.50 cm de lado tiene la masa de 1.00 g?
Brrunno [24]

Answer: 2.50

Explanation:

8 0
3 years ago
Answer Question
vovangra [49]

Answer:

1. an object that has been intentionally placed into orbit. they are called Artificial Satalites.Satanists.

2. a huge collection of gas ,dust and billions of stars and their solar systems held together by gravity.

3. a large object such as Jupiter or Earth that orbits a star. planets are smaller than stars and they do not produce light.

4. July 16, 1969

7 0
3 years ago
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