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WorksheetsChem Final Questions
Total questions: 21
Worksheet time: 12mins
What is matter?
What is a element?
An element is a fundamental building block of a webpage
An element is made up from 1 type of atom
Molecules are?
Have more than one type of element
Made up from more than one atom bounded together
Large clusters of atoms
Types of bonds that molecules have
Single, double, triple bonds
What are true about compounds?
they are more than one different types of
elements bonded together.
All compounds are also molecules!
(But not all molecules are compounds.)
There types of bonds are; single, double, and triple bonds
What is a heterogenous mixture
Mixtures that are not well mixed together.
What is an example of a heterogenous mixture?
what is a homogenous mixture?
Mixtures that are perfectly mixed together and now uniform.
Example of homogenous mixture?
air
What is a mixture?
Multiple types of elements,
compounds and/or molecules
mixed together, but not bonded
together.
What are the signs of a chemical reaction?
Changes in color, temperature, formation of gas, precipitation, or light
What are the three fundamental chemical laws?
What is law of conservation of mass?
What is law of definite proportions?
Chemical compound always contains the same elements in the same ratio
What is LAW OF MULTIPLE PROPORTIONS?
Elements can combine in different ratios,
but they must always be whole number
ratios.
Where the molecule will always have the same proportions
Elements can combine in different ratios, but they must always be a 1/2 ratio.
Three characteristic of liquids
Definite volume
High temperature state
Indefinite shape
Atoms vibrate close together passing through each other
Three characteristics of solids
Definite volume
Definite shape
Atoms barley vibrate packed close together
Atoms vibrate a lot and are far apart
Three characteristics of gas
Indefinite shape
Atoms move close together
Indefinite volume
Atoms vibrate a lot very far apart
What are isotopes?
What are cations?
What are anions?
