Conservation Of Mass And Ionic, And Covalent Bonds

Question 1

Besides actually solving the problem and writing the final answer, what is the one thing you must do while solving ionic bonds?

Answer 1

Write the oxidation number

Question 2

What step is step 3 based of off in making covalent bonds?

Answer 2

Step 1

Question 3

What is one thing that you must remember to do while making covalent bonds?

Answer 3

Even if there sharing electrons both elements must always have a FULL OUTR SHELL!

Question 4

What does CONSERVATION mean?

Answer 4

The fact that anything (like energy, mass, etc…) always stays the SAME!

Question 5

What is the law of conservation?

Answer 5

Matter CANNOT be created or destroyed. It CAN ONLY change FORM.

Question 6

What Is an independent variable?

Answer 6

A variable whose variation does not depend on that if another

Question 7

What is a dependent variable?

Answer 7

A variable whose value was depends on that of another

Question 8

What is a control?

Answer 8

A control is used as a constant and unchanging standard of comparison in scientific experimentation

Question 9

What is a constant?

Answer 9

A constant that is unknown but assumed to have a fixed value in a specified mathematic context

Question 10

What are subatomic particles?

Answer 10

A subatomic particle particle is in the middle of an atom and the protons and neutrons are what’s inside it, that interact with each other.

Question 11

What are oxidation numbers?

Answer 11

A number assigned to an element in chemical combinations which represents the number of electrons lost or, gained (if the number is negative) in that element.

Question 12

How do you find an elements oxidation number?

Answer 12

By looking to see how many rows the element would need to lose or gain, to be in the first row.

Question 13

How do you know what type of ion an element is?

Answer 13

If it’s one of the two darker shades of blue on the periodic table of elements, then it’s an anion. If it’s any other element on the periodic table, then it’s a cation.

Question 14

What are elements?

Answer 14

Elements or substances that cannot be broken down or changed, and the atoms for each element are unique.

Question 15

What is the periodic table of elements?

Answer 15

A table of all the elements arranged by atomic number

Question 16

What are compounds?

Answer 16

Compounds are what different elements are made out of them they are molecules, but all molecules are compounds. There are millions of compounds all around you, for example hydrogen gas.

Question 17

What are molecules?

Answer 17

Every combination of Atom’s is a molecule and new compounds have few, to none of the same physical traits.

Question 18

What are mixtures?

Answer 18

Mixtures are substances that are made of two or more Atoms that are not chemically fused together, they’re infinite combinations and they are physical properties not chemical properties, for example; air, cake, and salt and water.

Question 19

What are physical properties?

Answer 19

Physical properties describe how anything is at the moment.

Ex: boiling point, freezing point, melting point, or; color, shape, etc…

Question 20

What are physical changes?

Answer 20

Physical changes are how change physically

Ex: Melting, Boling, Condensing, etc…

Question 21

What are chemical properties?

Answer 21

Chemical properties or how something is chemically.

Ex: The ingredients you need for a cake before you bake it, and then how a cake is once it is baked

Question 22

What are chemical changes?

Answer 22

Chemical changes are how things change chemically overtime

Ex: rusting, exploding, burning, oxidizing, etc…

Question 23

What is the difference between homogenous and heterogenous?

Answer 23

HOMOGENOUS: Always looks the same and, it can be separated physically.

HETEROGENOUS: The particles are big enough to be seen and to be separated from the mixture. It can not be separated physically