Which type of change is represented?

Answers

Answer 1

Answer: The correct answer is A. The image shows a nuclear fission. This takes place in any of the heavy nuclei after capture of a neutron. This is the opposite of nuclear fusion. In this case, nuclei are broken down into two.

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5. Which quantities must be conserved in all chemical reactions?

Answers

In every chemical reaction, the number of atoms of each component reactant, mass, and energy must be conserved.

Law of conservation in chemical reactions

The law of conservation in chemistry states that atoms, matter, mass, and or energy in chemical reactions can neither be created nor destroyed but may be converted from one form to another.

Following this law, the quantities that must be conserved in chemical reactions are:

atoms
mass/matter
energy

More on the law of conservation in chemical reactions can be found here:brainly.com/question/20081187

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In a chemical reaction, the quantities that must be conserved is Matter ( The law of conservation states matter cannot be created nor destroyed.) If the matter is conserved that means the reactants mass is the same as the product. So if matter is conserved, mass is conserved. Another quantity that must be conserved is the number of particles.
Hope this helps! :)

What is an endothermic reaction?

Answers

Endothermic reactions are reactions that take in energy. This is usually in the form of heat. An example could be evaporation because heat is being absorbed by water and molecules are moving away from each other.

A reaction where energy is taken in from the surroundings causing temperature to decrease. Bond breaking requires energy and bond making releases energy. Therefore, if energy is taken in from the environment then in that reaction, more bonds are broken than formed. e.g. melting an ice cube.

Is Squeezing oranges to make orange juice a chemical or physical change?

Answers

This would be a physical change because despite the fact the juice has been squeezed out of it, the orange is still an orange. A physical change is when something changes matter, like a solid to a liquid or a liquid to a gas. Since it's been changed from a solid orange to liquid juice, it's a physical change.

Hope I helped! :)

squeezing just the juices out of the orange, like with your hand or whatever you use, is a physical change. yes :)

Changing the pressure of a system has the highest effect on a substance in which phase?a. gas
b. solid
c. liquid
d. plasma

Answers

The best answer to the question presented above would be letter a. Changing the pressure of a system has the highest effect on a gaseous phase. Solids and liquids under pressure make little difference, while gas molecules have many behaviors due to change in pressure.

Doing science, and having a bit of trouble.
please help
thank you so much!

Answers

Each column is also called a group. The elements in each group have the same number of electrons in the outer orbital. As you keep counting the columns, you'll know how many electrons are in the outer shell.

2. How old are the oldest fossils? Oldest rocks?During what period were these found?
IT

Answers

Answer:

Fossils: 3.5 billion. Rocks: 4.28 billion

they were found during Haden Eon

Explanation:

Other Questions

Given the balanced equation representing a reaction at 101.3 kPa and 298 K:N2(g) + 3H2(g) => 2NH3(g) + 91.8 kJ Which statement is true about this reaction? (1) It is exothermic and DH equals -91.8 kJ. (2) It is exothermic and DH equals +91.8 kJ. (3) It is endothermic and DH equals -91.8 kJ. (4) It is endothermic and DH equals +91.8 kJ.

Which of the following pH values indicates the highest concentration of hydronium ions in a solution?

What does mitochondrial exactly mean ?

Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters of gas would be produced at STP?