What does pH measure

Answers

Answer 1

Answer: The pH scale is the measurement of the acidic or basic the solutions. A 7 on the pH scale is neutral, so water, the lower you go from 7 measures acids and the higher measures bases.

Answer 2

Answer: This measures how acidic or basic a substance is in chemistry . Hope this helps :)

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What are the three types of nuclear particles emitted when a radioactive atom decay?

Answers

Answer:

Alpha particles, Beta particles and Gamma rays

Explanation:

The emission of particles when a radioactive atom decays is called radioactivity.

An atom is radioactive as a result of unstable nucleus. This unstable nucleus of the atom disinintegrates and leads to emission of Alpha particles, Beta particles and gamma rays.

Alpha particles contain 2 protons and 2 neutrons. They are positively charged

Beta particles are negatively charged

Gamma rays are electromagnetic waves with short wavelength

Alpha, Beta, and Gamma Decay

which industrial city would have fewer air pollution incidents related to temperature inversions one on the great plains or one near the rocky mountains

Answers

I'm not positive, but I believe it would be one near the Rocky Mountains.

A straight line on a graph means there is a ______ relationship between the dependent variable and the independent variable.

Answers

its a linear relationship

proportional linear relationship

How does a buffer work

Answers

A buffer works by bonding with the added H+ or OH- in solution

A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.

Hope this helps

1) What is the mass of 5.24 moles of Fe504-7H2O?

Answers

Answer:

Ok; first of all, you must correct the Molecular Formula; FeSO4•7H20

So, work out the Molar Mass;,

(4x18)O+ 55.? Iron + 32 Sulphur, PLUS

(7x 18) H2O = 1 molar mass.

Now, take that times 5.24, show your work & check the Mol. Weights, I am going by memory.

Oxygen

Explanation:

Why does tying the arm above the elbow make veins in the forearm more visible?

Answers

The tying results in the more visible veins of upper arms due to blood flow restriction.

Veins are the part of circulatory system in the body, that functions to carry deoxygenated blood from different parts of the body to the heart.

The venipuncture has been the process of insertion of drugs or chemicals in a body through vein. The veins of the upper arm has been tied to make them more visible.

The upper arm veins are more visible as there has been blood flow restriction in the veins by tying that results in the bulging out of the vein.

For more information about veins, refer to the link:

brainly.com/question/9726668

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For the reaction 4FeCl2(aq) + 3O2(g) → 2Fe2O3(s) + 4Cl2(g), what volume of a 0.945 M solution of FeCl2 is required to react completely with 4.32 ×1021 molecules of O2?