Give 4 examples of chemical change.
Iron rust, gas burning, slime making, necklaces tarnishing, etc.
Whipping eggs, boiling water, dissolving sugar, dicing vegetables are 4 examples of what?
Physical Change
What produces when a chemical change reaction is released?
Gas
What is physical change?
A physical change is a change in a substance that does not change what the substance is.
SLIME is an example of what change?
Chemical Change
What is the largest mammal in the world?
Blue Whale
Draw the electron configuration of Lithium
How many substances join to form new chemical properties?
Two or more
Give 3 evidences of physical change.
Change in form, change in shape, change in size, change in phase.
Occurs when what molecules are interacted and the molecules change into a new substance.
Chemical Reaction
Is shredding paper a physical change?
Yes!
Give one example of physical change and one example of chemical change.
...
What is the most common M&M color?
Blue
Where are electrons found and what charge do they have?
Location: outer shell
Charge: negative
When a chemical reaction between substances gets heat, it is all because of what element?
Oxygen
When the candle burnt down, it will goes back into the same form, it's still a candle.
Two things come together to form something new. This is what type of chemical reaction?
Composition Reaction
Mixing sand and water is
A physical change
What are the chemical reactions in making a slime?
The glue solution changes from being very liquidly to a rubbery kind of stuff.
What is the record for the world record for most hotdogs eaten?
Joey Chestnut with a whopping 73 hot dogs
Where are neutrons found and what charge do they have?
Location: nucleus
charge: neutral (0)
Give 3 examples of a chemical change.
Rusting, tarnishing, decomposing, polymerization
What are the main states of mater?
Solid, liquid, gas
During a chemical change energy can be released in the form of?
Heat and Light
Give an example of a change in size physical change.
Ex. Cutting a paper
What is the difference between a physical change and chemical change?
A chemical change there is a change in the substance and in physical change there is a difference in the appearance.
How close (in metres) is the closest McDonalds?
550 m
Draw the electron configuration of Sodium
Bonds between atoms are broken and created to form what?
To form new molecules
Give four PHASES of change in a physical change.
Melting, boiling, evaporation, condensation, freezing, sublimation, deposition.
A chemical reaction that absorbs energy in the form of heat is called?
ENDOTHERMIC
Give a solid to liquid type of physical change.
Ice melting
Give an example of both a physical and chemical change.
Who has the most followers on Instagram?
Instagram! The platform’s channel is the most followed. Second place goes to footballer Cristiano Ronaldo.
What happens to the atoms when they are being heated?
When atoms are heated, they gain kinetic energy, causing them to vibrate and move faster.