Atoms
What is an Atom?
The change in state from a solid to a liquid.
What is Melting?
This is an element that has a charge.
What is an ion?
AgNO3 + Cu 🡪 Cu(NO3)2 + Ag
2AgNO3 + Cu 🡪 Cu(NO3)2 + 2Ag
RbNO3 + BeF2 🡪 Be(NO3)2 + RbF
What is Double Replacement?
The atomic number measures how many ______ an element has.
What is protons?
This is a change in a substance that does not change what it is. (Does not rearrange the atoms)
What is a Physical Change?
Draw the Lewis Dot Diagram for Aluminum.
What is .
Al .
.
MgI2 + Mn(SO3)2 🡪 MgSO3 + MnI4
2MgI2 + Mn(SO3)2 🡪 2MgSO3 + MnI4
P4 + O2 🡪 P2O3
What is Synthesis?
This is the subatomic particle that has a negative charge.
What is an electron?
This is a change in a compound or substance that does change what the substance is. (Does rearrange atoms)
What is a Chemical Change?
What charge will Carbon have?
What is + or - 4?
C3H6O + O2 🡪 CO2 + H2O
C3H6O + 4O2 🡪 3CO2 + 3H2O
CaCO3 🡪 CaO + CO2
What is Decomposition?
An element has an atomic number of 15 and an atomic mass of 35 how many neutrons does it have?
What is 20 neutrons?
This has a definite volume, but no definite shape.
What is a Liquid?
Draw the Lewis Dot Diagram for NF3
What is...
HBr + Al(OH)3 🡪 H2O + AlBr3
3HBr + Al(OH)3 🡪 3H2O + AlBr3
C6H12 + O2 🡪 CO2 + H2O
What is Combustion?
What is the octet rule and what element break the rule, why?
What is all elements want 8 valence electrons. Hydrogen and Helium because the first ring only has 2 electrons to satisfy.
True or False: "If Ice melts and turns into a puddle of water, that is a Chemical Change."
What is False?
If an element is X+3 and has an atomic atomic number of 34 how many electrons does it have?
What is 31 electrons?
C7H6O + O2 🡪 CO2 + H2O
C7H6O + 8O2 🡪 7CO2 + 3H2O
Pb + H3PO4 🡪 H2 + Pb3(PO4)2
What is Single Replacement