Conservation of Mass
This law states mass cannot be created or destroyed in a chemical reaction.
Law of Conservation of Mass
When thermal energy is added, particles do this.
Move faster (or increase motion)
This type of reaction causes the system to absorb heat.
Endothermic reaction
Materials like plastic or nylon that are made by humans.
Synthetic materials
This law states that for every action, there is an equal and opposite reaction.
Newton’s Third Law of Motion
In a closed system, this stays the same for any kind of reaction.
Mass
When thermal energy is removed, particles do this.
Slow down (or decrease motion)
Gas production and temperature change are all signs that this has occurred.
A chemical reaction
This gives molecules like polymers their unique properties
Their structure (arrangement of atoms)
When two carts collide, they exert these types of forces on each other.
Equal and opposite forces
A balanced chemical equation shows this.
Equal number of atoms on each side.
During the initial part of a phase change, temperature stays the same because energy is being used for this.
Changing the state (breaking or forming bonds)
This type of change affects appearance, not composition.
Physical change
A large molecule made of repeating smaller molecules.
Polymer
The two factors that determine an object’s kinetic energy.
Mass and speed (or velocity)
If a reaction appears to lose mass, this likely happened.
Gas escaped
This state of matter has the fastest particle motion.
Gas (I'll also accept Plasma)
This is needed for all chemical reactions to occur.
Energy
This is a benefit of synthetic materials.
Durable and adaptable to use.
This is any change in position, speed, or state of matter due to force.
Work
This is wrong with this chemical equation:
3HClO --> 2HClO2 + HCl
Missing oxygen atom on left side
When ice melts, this happens to the motion of its particles.
The particles move faster
This is what happens to atoms during a chemical reaction.
They break and rearrange to form new molecules.
This is a drawback of using synthetic materials like plastics
Pollution/waste
The action-reaction forces involved in a rocket launching.
The rocket pushes gas downward (action), and the gas pushes the rocket upward (reaction)