CHEMISTRY MIDDLE SCHOOL

Which stays the same during chemical reactions? the overall types of atoms only
the overall numbers of atoms only
both the overall types and numbers of atoms
neither the overall types or numbers of atoms

Answers

Answer 1
Answer:

Both the overall types and numbers of atoms stay the same during chemical reactions.

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Why do the oceans play such a large part in the water cycle

Answers


In The Ocean The Water Will Become Water Vapor (The First Part Of The Water Cycle) And Become A Cloud Then It Would Rain And The Water Will Get Collected In The Ocean (The Last Part)
Oceans are the source of water for the water cycle.

Interpreting the periodic table

Answers

Here is an image of the periodic table. Hope this helps.

Final answer:

By increasing atomic number, the Periodic Table organises elements in chemistry. Since groups of elements share comparable properties because they all have the same number of electrons in their outer shell, each row represents a period and each column represents a group.

Explanation:

Interpreting the Periodic Table involves understanding its structure and how the elements are arranged.Elements in the periodic table are ordered by increasing atomic number, which corresponds to the number of protons in an atom's nucleus. Each row represents a period and the columns represent groups. Because all members of a group have an equal number of electrons in their outermost shell, all members of that group share characteristics. For instance, the elements fluorine (F) and chlorine (Cl), which both belong to group 17, have seven electrons in their outermost shells and share other characteristics. The Periodic Table is an essential tool in the field of chemistry as it allows scientists to understand patterns and properties of elements.

Learn more about Periodic Table here:

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What happens to water once it reaches earths surface?

Answers

it evaporate back to the atmosphere which later on back to its cycle which later on fall as rain
It turns into an ocean?

What is the density of a block of marble that occupies 287cm3 and has a mass of 869g?

Answers

a REALLY helpful thing when doing physics is something called the DMV triangle. So how it works is you look at what you are trying to find, which in this case is density. So you cover the D and look at the remaining M and V. Everything below the M has to be divided, and if you are just left with the D and V then you x them. It’s really simple and easy to use. So you cover up the D, and are left with M and V. So now you have to do Mass divided by Volume. 869g divided by 287cm3 would be 3.02g/cm3

Why is gas able to flow

Answers

It has enough energy to move around. Also because its particles float around and aren't packed tightly together. Its particles move freely.

What is the name of the large dome-shaped muscle under your lungs that helps you breathe?

Answers

It's Your Diaphragm!
That would be your diaphragm :)
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