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CHECKPOINT #6

PERIODIC TRENDS AND REACTIONS OF MATTER

QuestionAnswer
What is Solubility?
What affects solubility?
How does increasing temperature affect solubility?
What is a Saturated Solution?
What is a Supersaturated Solution?
What is an Unsaturated Solution?
What is an Open System?
What is a Closed System?
What does the Law of Conservation of Mass states?
What is a Physical Change? Examples.
What is a Chemical Change? Examples.
What is some Evidence/Indicators of a Chemical Reaction? Unexpected change of color, production of light, release of bubbles, formation of precipitate, change in temperature (it may increase or decrease).
How does Temperature affect the rate of a Chemical Reaction? It increases the kinetic energy of particles, making them move faster and to collide more frequently. In conclusion, it increases the speed of a reaction.
What does the Collision Theory states?
What are some properties of group 1 (Alkaly Metals)?
What are some properties of group 2 (Alkaline Earth Metals)?
What are some properties of group 17 or 7A (Halogens)?
What are some properties of group 18 or 8A (Noble Gases)?
Where are Metals located in the Periodic Table? They are located in the left side of the Periodic Table.
Where are Non-Metals located in the Periodic Table? They are located in the right side of the Periodic Table.
What are the common properties of elements in the same Group (column) of the periodic table? They behave similarly because they all have the same number pf valence electrons.
What are the common properties of elements in the same Period (row) of the periodic table? They do not behave similarly but they have the same number of orbits or energy level.
What does a Neutral pH (7) mean? Substance has the same amount of hydrogen (H+) and hydroxide (OH-) ions.
What does an Acid pH (less than 7) mean? Substance has MORE hydrogen (H+) ions that hydroxide (OH-) ions.
What does a Basic pH (Higher than 7) mean? Substance has LESS hydrogen (H+) ions than hydroxide (OH-) ions.
What is the goal of an antiacid tablet? The antiacid is basic and it neutralizes the acid in your stomach.
How does ocean acidification affect the marine life? It damages the shells and skeletons of marine organisms.
What are examples of Physical Weathering? Weathering is braking rocks apart. Waves crashing into rocks is an example.
What are examples of Chemical Weathering? Weathering is braking rocks apart. Oxidation of rocks, acid rain, and salts from the sea can cause rocks to break.
Created by: user-1776559
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