The atom
the 3 things that make up an atom
What is a proton, neutron, and electron?
What element is at period 2 group 18
what is Neon?
The state of matter with the lowest kinetic energy
What is a solid
the thing that prevents chemicals from splashing on your eyes
what is goggles?
In a lab, you mix magnesium and acid together. you start to see the reaction bubble and touching the test tube it feels warm.
what were the two signs of a chemical reaction
What is warm and bubbling?
The location of protons and neutrons in an atom
What is the Nucleus?
The element is in period 5 group 13
What is indium?
A pure amount of a substance that ONLY contains 1 type of atom
What is a element?
What do you always need in order to do an experiment
What is a Hypothesis
In a lab, you crush up some chalk. Is this a chemical change or physical change
Physical change
The number of protons are in the following element
N3-
what is 7 protons
The element in period 2 and is a halogen
What is flourine?
The state with the highest energy possible
what is plasma?
The reason why you tie your hair back in a lab
What is fire
In an experiment, you dissolve salt in water. the salt is no longer seen in the water.
Chemical or physical change
Physical change
The following number of neutrons in the following element:
Phosphorous-32
What is 17 neutrons?
The element that is in period 4 and has no reactivity
What is Krypton?
The type of mixture with large particles, tyndall effect, and the particles can settle out overtime.
What is suspension?
the Rf value of a dot if the water traveled 4.7 cm and the water traveled 6.1cm
0.770
What are 4 examples of a physical change
What is
Dissolving
crushing
cutting
melt/boil
The following number of electrons in the following element:
Ca2+
What is 18?
The element in period 4 that is in the family that is a metal, reactive, and a distinct whitish tint.
What is Calcium?
A type of mixture that has medium particles, particles don't settle, and you can see the tyndall effect
What is a colloid?
What is the mass of 7 ml of water if an empty graduated cylinder weighed 46.7 grams and the amount of water with cylinder weighs 53.6 grams?
What is 6.9 grams?
What are 4 signs to determine a chemical reaction?
What is
Energy
Color changes
bubbling
Precipitation (solids forming)