How many protons are in the radioactive isotope 40/19K

Answers

Answer 1

Answer: I am assuming K is potassium and potassium atoms have 21 protons and 21 neutrons. hope that helps some

Answer 2

Answer:

The answer to this question is 19

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A toy balloon filled with air has an internal pressure of 1.25 atm and avolume of 2.50 L. If I take the balloon to the bottom of the ocean wherethe pressure is 95 atmospheres, what will the new volume of the balloonbe? How many moles of gas does the balloon hold? (Assume T 285 K)

Answers

Ideal Gas Law
Given: P1= 1.25 atm P2= 95 atm
V1= 2.50 L

Unknown: V2=?

Formula: V=nRT/P; n = RT / PV

Solution: n = (0.0821 L x atm / K x mol) (285K) / (1.25 atm) ( 2.50L)

= 23.40 / 3.125

Answer: n = 7.49 moles of gas the balloon holds

High color saturation produces gray tones.

Answers

If this is a true of false question, note that it's false. Unsaturating the color, meaning giving it a lower amount up to zero, can cause gray tones - especially when it comes to pictures when editing it. High color saturation can make the color tone very vivid.

How do molecules move to the location of the chemical change

Answers

In a chemical change, the molecules in the reactants interact to form new substances. In a physical change, like a state change or dissolving, no new substance is formed.

hope this helped

Final answer:

Molecules move to the location of a chemical change due to the process of diffusion. In this physical phenomenon, molecules move from an area of high concentration to an area of lower concentration. This diffusion leads to interaction between reactant molecules causing the chemical change.

Explanation:

The movement of molecules to the location of a chemical change is a fundamental concept in Chemistry. In a chemical reaction, molecules move due to a physical phenomenon known as diffusion. Diffusion is the process by which molecules of a substance move from an area of high concentration to an area of lower concentration. For example, if you open a perfume bottle at one end of a room, eventually the perfume molecules will spread throughout the room. These perfume molecules move to areas of lower concentration via diffusion. In the context of a chemical reaction, the reactant molecules diffuse to interact with each other, leading to the chemical change or reaction.

Learn more about Diffusion here:

brainly.com/question/33319237

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What is the final temperature of the solution formed when 1.52 g of NaOH is added to 35.5 g of water at 20.1 °C in a calorimeter? NaOH (s) → Na+ (aq) + OH– (aq) ∆H = -44.5 kJ/mol