Some Like It Hot
Some Like It Hot
Some Like It Hot
Some Like It Hot
Some Like It Hot
This is when energy is released from a chemical reaction, usually felt as a heat.
exothermic
What type of change is one where no new substances are created?
physical change
The periodic table is organized in order of_______
increasing protons/electrons
This is the part of the atom with a positive charge
proton
The name for the drawing of valence electrons surrounding a chemical’s symbol
Lewis Dot Diagram
This phase of matter has molecules that have the highest amount of thermal energy
gas
If bubbles are seen when combining two chemicals, what type of change has occured?
Chemical Change
Where can you find the information for the number of protons and neutrons?
The atomic mass
Bonds are made and broken by:
Valence electrons (or electrons)
This is what is represented by the dots in a dot diagram
Valence Electrons
Adding vinegar and baking soda created a reaction that absorbed energy. This was what type of reaction?
endothermic
This is the process of going from a gas to a liquid
condensation
If an element has 11 protons, 12 neutrons, and 11 electrons, than it’s atomic mass is ______
23
Provide a short description of the distance between the nucleus and electrons of an atom
They are very far apart, mostly empty space
This is represented by two electron dots physically linking two different elements
covalent bond
At 100 degrees Celsius, what does pure water do?
boils/turns into a gas
Which word does not belong?
–Smell, melts, smoke, bubbles, heat
melts
What is shown by the trend across the top of the periodic table that reads
1+ 2+ 3+ 4+ 3- 2- 1- 0
charges, or oxidation numbers
The overall charge in the nucleus of an atom is:
positive
These types of bonds are formed when electrons are given and taken, forming “magnetic pulls”
ionic bonds
What do you call the phase change from solid to gas, skipping the liquid phase?
Sublimation
Molecules are closest together in this state of matter
solid
What type of bond is KCl? (potassium chloride)
Ionic
This is the ideal number of outer shell electrons
8
How many BONDS are there in the bonds of CH4?
4