CHEMISTRY MIDDLE SCHOOL

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

Answers

Answer 1
Answer:

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

Answer 2
Answer:

Alpha, Beta, and Gamma Decay

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Jack is performing an experiment using two compounds, Q and R. He puts compound Q and R in a test tube. The compounds then undergo a chemical reaction to form compounds S and T. Which of the following would be the strongest evidence to show that a chemical reaction has occurred? A. The total mass of compounds S and T is equal to the total mass of compounds Q and R. B. Compounds S and T have different melting points than compounds Q and R. C. Compound S can be physically separated from compound T. D. Compounds Q and R are both part of a mixture.

Which generally occurs as temperature increases?

Answers

Solubility increases.

Answer:

solubility increases

Explanation:

For example with gases dissolved in liquids, a rise in temp would decrease solubility. There are even some solid in liquid soln where increasing temps decreases solubility.

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Answers

The amount of CO2 in the atmosphere has increased dramatically due to(mainly) excessive burning of fossil fuels.

Answer:

The amount of carbon dioxide in this period is increased very fast....and it results in the climate change...and due to high amount of CO2 new viruses,and diseases are growing in the world..

How much protons and electrons does aluminum have

Answers

13 for both electrons and protons

Which variables can affect the speed of a chemical reaction? (Choose all that apply)A.) Addition of inhibitor

B.) Change in concentration of reactant

C.) Temperature

D.) Particle size

Answers

The variables which can affect the speed of a chemical reaction are inihibitor, concentration, temperature and particle size.

What is the speed of reaction?

Speed of any reaction also known as rate of reaction and it gives idea about the duration that at how much time it will complete.

  • Addition of inhibitor slows down the speed of the reaction as inhibitor blocks the activity of the reactants.
  • Change in concentration of reactant also chnages the speed of the reaction because it completely depends on the reactant concentration.
  • Temperature changes also affect the speed of the reaction as it changes the kinetic property of the reaction.
  • Particle size provides the surface area to get react so changes in this property will also changes the speed of the reaction.

Hence all of the above will changes the speed of the reaction.

To know more about speed of reaction, visit the below link:

brainly.com/question/15841605

Your answer is B(I'm not very much sure about this one), C, and D.

I hope very much that I am correct, hope this helps you.

~Onyx~

What type of rock does preexisting rock become

Answers

Metamorphic rock is a type of rock that the preexisting rock becomes a new rock.
Metamorphism has also different types; the Contact metamorphism and the regional metamorphism. Contact metamorphism happens when magma is mixed with the solid rocks in the surroundings. For example when magma is starting to form igneous rock, it may increase that probability that it will reach the country’s rock and that’s affected the current formation of the rock. Regional metamorphism is also called as dynamic metamorphism. This happens when the pressure from underground makes the rock from above move and change into new rock formation

Clastic because clastic sedimentary rocks are made up of pieces of pre existing rocks

What is matter im confused

Answers

Matter is pretty much solids, liquids, and gases
matter is the gavity in which it is also any subject that you could find
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