How many properties of matter are there?
a) 2
b) 3
c) 1
d) 4
a) 2
100
What is sodium floride?
a) MgO
b) NaF
c) KiI
d) K2S
b) NaF
100
Molecular compounds are made of ___________ ?
Non-metals
100
2Na+ Cl2 --> _______ ?
2NaCl
100
Which substances are acids ?
a) HBr
b) H2SOy
c)KCl
d)lithium iodine
e) nitric acid
a) HBr
b) H2SOy
c) nitric acid
200
What is matter ?
Metter is EVERYTHING !!!
200
What's an example of an ionic compund ?
NaCl - Sodium Chloride
200
Whats an example of molecular compounds ?
CO - carbon monoxide
200
What do balanced chemical equations demontate ?
The law of conservation of mas
200
What is acid used for ?
Acids can be used for tast
300
What is a mixture ?
More than one kind of particle
300
How do you name an ionic compound ?
Write the name of the metal firt. Write the name of the non-metal second and change the ending of the name to "ide"
300
What are 3 properties of molecular compounds ?
1- Solids, liquids or gases at room tempurature
2- Lower melting points than ionic compound
3- Do not conduct electic current when they are melted or dissolved in water
300
To make a balanced chemical equation what needs to happen ?
Each element has the same number of atoms on both sides of the chemical equation
300
What ion is released by bases when they dissolve in water ?
hydroxide ion (OH-) are released
400
Can a compound be separated into elements by filtration ?
No, a compund can only be broken by a pure substance
400
How do you write a ionic compound formula ?
Write the element symbols with the metal first. Using you periodic table write the ionic charges above each symbol. Criss-crossing the numbers only making them ubscrip. Write the formula.
400
What is a molecular compound ?
non-metal atom shara elections with other non-metal atoms including hydrogen
400
What don't you do when balancing a chemical equation and why ?
We can not change subscipts because doing this will change the entire compound
400
What is a neutralization reaction ?
When acids are added to bases they react to produce a salt and water