States of matter
What are the main states of matter?
Solid, liquid, gas, plasma.
what does Reduction mean?
Reduction actually means to gain an electron
A change that does not create a new substance is called a _____ change.
Physical
What is a PH scale?
The pH scale ranks different aqueous solutions based on their acidity levels.
what is acid and base solutions?
A physical property is a characteristic of matter that can be observed or measured without changing the identity of the matter
which state has a definite shape and volume ?
A solid has a definite shape and a definite volume
what does Oxidation mean?
This is when an atom loses electrons.
A change that cannot easily be reversed is usually a ____change.
Chemical
What is the range of the PH scale?
The scale ranges from 0-14
what is an Acid ?
An Acid is a substance that promotes a chemical change and creates salt water with a base.
what is solid ?
A solid has a fixed shape and fixed volume. The particles are packed closely together.
Oxidation states are important as they help us track of where each _____ is moving in a ______. This helps us to understand ______ properties
Electrons, Compounds, Chemical
What type of change usually cannot be reversed easily?
chemical change.
All solutions contains two types of ions, _______ ions (H3 0+) and ______ ions (0H - 1). Depending on the level of these two ions, something may be more.
Hydronium, Hydroxide
Acids are also used to make products such as fertilizer, _____, and ______.
detergents, plastics
how does the matter change from one state to another?
Matter changes states when heat is added or removed
How do we know the Oxidation states/number of elements?
by following a set of rules based on its elemental form, ion charge, electron negativity, and position on the periodic table.
What type of change happened when a substance changes shape or size?
physical change
what makes water neutral ?
A equal amount of both hydronium and hydroxide ions
What can base be found in?
A base can be found in Natural and Artifical flavoring in food, such as cocoa beans.
the state if matter that spreads out to fill its container is a ______.
Gas
what is the 6th rule of Oxidation?
6. The Oxidation state of Hydrogen is +1 in Compounds, -1 when bonded to metals.
is rusting iron a physical or chemical change?
Chemical change
What does pH measure?
A solution's acidity or alkalinity (basicity).
Bases are also able to_______ the properties of an _____, while acids can neutralize the properties of a base.
Neutralize, Acid