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SCI ADV 3 - PMA 6
PERIODIC TRENDS AND REACTIONS OF MATTER
Question | Answer |
---|---|
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. |