Chemical Formula
Carbon Dioxide
CO2
SO2
Sulfur Dioxide
Which chemical element does not exist?
a) Moscovium
b)Francium
c)Australium
c)Australium
True or false?
there are about 128 elements in periodic table
false
there about 118 elements in periodic table
Where are nonmetals found on the periodic table?
in the 2nd and 3rd periods
Sulfur Trioxide
SO3
SiC
Silicon Carbide
The central part of the atom?
nucleus
The smallest particle of matter
atom
The lightest non-metal
hydrogen
Carbon Monoxide
CO
B2O3
Diboron Trioxide
What do chemists call bases that are highly soluble in water?
alkali
Sodium has one type of atom,so it is an element or compound
an element
Explain why most metals have high melting points?
atoms held strongly
Magnesium Carbonate
MgCO3
NaHCO3
Sodium Hydrogen Carbonate
Which of these is chemical glassware?
a)flask
b)сolonel
с)trough
a)flask
Rotates around the nucleus
a)proton
b)electron
c)neutron
b)electron
How many nonmetals are in the periodic table?
22 non-metals
Dinitrogen Tetroxide
N2O4
5H2O
Pentahydrate
Water in solid state
Ice
Define the term "solvent"
A solvent is any substance, usually liquid, which is capable of dissolving one or several substances
Choose the one word which typical to non-metal in solid state
a)high melting point
b)strong
c)low melting point
c) low melting point