Activate 1 Chapter 2 Atoms, Elements and Compounds Flashcards

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1
Q

What is an atom?

A

Atoms are incredibly tiny particles that make up all substances.

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2
Q

What is an element?

A

An element cannot be broken into other substances and is made up of one atom only.

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3
Q

What is a molecule?

A

A molecule is made up of atoms all chemically bonded to each other.

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4
Q

What is a compound?

A

Compounds are up of two different types of atoms strongly joined together and can be broken down into other substances.

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5
Q

What does a chemical formulae tell you?

A

A chemical formulae tells you how much atoms are there in a molecule relative to each other.

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6
Q

How many types of atoms are there?

A

92

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7
Q

Do each type of atom have different properties?

A

Yes.

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8
Q

Give ten examples of elements.

A

Any of the elements in the periodic table are fine (e.g. potassium, hydrogen…).

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9
Q

How many atoms are there in NaOH?

A

3 types of atoms

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10
Q

How many atoms are there in CaCO3?

A

5

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11
Q

Is O2 a compound?

A

No, it is a molecule

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12
Q

How do we name compounds which have oxygen and another element in it?

A

Every compound containing oxygen ends in oxide. If there is one oxygen, mon is put before oxide. if there is two oxygens, di is put before oxide.

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13
Q

How do we name compounds which have a metal and a non metal?

A

We put the metal’s name first, and then the non-metal name. The non-metal name must end in ide!

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14
Q

What is the name of the compound that has one carbon and one oxygen?

A

Carbon monoxide

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15
Q

What is the name of the compound which has one silver (a metal) and one chlorine?

A

Silver chloride

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16
Q

What is the chemical formulae of gold?

A

Au

17
Q

What is the chemical formulae of Xenon?

A

Xe

18
Q

What is the chemical formula of sulfur dioxide?

A

SO2

19
Q

What are the elements in calcium carbonate (the chemical formula is CaCO3)?

A

Calcium, carbon, and oxygen.

20
Q

What is the chemical formula for titin (you don’t have to know this, this is just a fun fact!).

A

C169723H270464N45688O52243S912.
https://youtu.be/GZ-fgWXPOBY?si=R0n2SbD2DSkYScMm click this link to see the titin’s full name!