A
Anything that has mass and takes up space
Matter
The smallest unit of matter
Atom
2 types of mixtures
Heterogenous and homogenous
Atomic number of Hassium
108
A chart used to organise all known elements
Periodic Table
A rock sample is found to contain quartz, feldspar, and mica, all physically combined but not chemically bonded into a single substance.
Mixture
Define mixture
A substance made up of two or more different pure substances (compounds or elements) that are NOT chemically bonded together
A substance made of only one type of atom
Element
A material made up of only one type of particle.
Pure Substance
A chemical substance made up of two or more different types of atoms.
Compound
A repeating 3D pattern of atoms in a solid is a ?
a property of metal is that in can be made into a ?
Wire
Name SO3
Sulfur trioxide
The reason why mixtures are represented as percentages and not a chemical formula.
Compounds form when 2 or more different elements combine in a FIXED RATIO. But the ratio of substances in a mixture can vary.
Name N2O4
Dinitrogen tetroxide
Name MnSO4
Manganese sulfate
Chemical Formula of Cobalt phosphate
CoPO4
A chemical formula showing 1x Cu = copper, 2x Br = bromine.
CuBr₂
The reason why oxygen exists as O2.
Stability
Antimony is shiny and brittle. It is a ?
Metalloid
The total number of atoms in Al₂(SO₄)₃
17
It contains 3 different elements: copper, sulfur, and oxygen and it's name ends in "ate".
Copper sulphate
How many atoms make up a single molecule of methane?
5
This comounds contains 2 nitrogen atoms and 3 chlorine atoms. Name it's chemical formula and chemical name.
N2Cl3, dinitrogen trichloride
A scientist who created an early version of the periodic table
Dmitri Mendeleev