Bonding
The type of bond non metals form
Covalent
A mixture of two metals is called?
An alloy
Atoms with the same number of protons, and more neutrons
Isotopes
12+4 +16
Bond forming a sea of delocalised electons
Metallic bonds
Can be bent and hammered into different shapes without breaking
Malleable
Carbon and diamond are
allotropes
How many mol is 2 g of H2
1 mole
Metals form what type of Ion?
Cation (positive)
What makes metal a good conductor?
Electrons that are not bound strongly to the nucleus
Molecules with the same molecular formula, but different structures
isotopes
How many grams in one mole of carbon
12
What type of intermolecular bonding do hydrocarbons exhibit?
Dispersion forces
Heating a metal to a specified temperature where recrystallisation occurs and allowing it to cool down slowly to room temperature. Forms large metal crystals
Annealing
A type of carbon that is soft and slippery
Graphite
How many atoms of copper are present in 1.5 mol of copper?
9.0 × 1023
Which is solid at room temperature:
Zinc
CH4
CO2
Zinc
Metals where some atoms are replaced with atoms of a smaller size, making the alloy harder and stronger
interstitial alloy
Why can graphite conduct electricity but diamond cannot?
Diamonds electrons are held tightly in a covalent network lattice. Carbon is held together by a two dimensional lattice with dispersion forces.
In a chemical reaction, scientists determined that 4.5 × 1015 molecules of water (H2O) were produced. What amount, in mol, of water was produced?
= 7.5 × 10−9