Elements, Compounds, and Mixtures
A substance that consists of only 1 type atom.
Element
A solution with a pH of 4 is classified as an acid, base, or neutral?
Acid
The attraction of molecules that are alike.
Cohesion
The scale that measures the pH of a substance.
pH Scale
The uneven forces acting on the particles on the surface of a liquid.
Surface Tension
Air is an example of which type of mixture?
Homogeneous Mixture
Bases have a pH range of what on the pH scale?
8 to 14
A paper clip floating in a glass or water is an example of _________.
surface tension
What is the name of the test that determines if a liquid is acidic or basic?
pH Test
A mixture with a uniform distribution of particles. It cannot be sparated.
Homogeneous Mixture
Atoms of different compounds and elements are not combined, they are mixed together. What is this called?
Mixture
Orange juice turns litmus paper red. This indicates that it is an acid or a base?
Acid
The attraction among molecules that are not alike.
Adhesion
Water is classified as neutral because it has a pH of ____.
7
A mixture with a non-uniform distribution of particles. It can be separated.
Heterogeneous Mixture
A substance containing atoms of two or more different elements connected together.
Compound
Litmus paper turns red when testing the pH of _______ and turns blue when testing the pH of _______.
acids / bases
Water traveling upward from a plant's roots to its stem and leaves is an example of what?
Capillary Action
Acids have a pH range of what on the pH scale?
0 to 6
A characteristic of matter that can be observed or measured without changing the identity of the matter.
Physical property.
A box of contains a mixture of legos of different colors, sizes, and shapes. They can be separated. What type of mixture could this be?
Heterogeneous Mixture
Glass cleaner is a base. What color would it turn litmus paper in a pH test?
Blue
A drop of water remains in a sphere due to _______.
Cohesion
What type of solution has a pH of 9?
Base
The collective work of a liquid's cohesive and adhesive properties to allow the liquid to climb upward through a solid.
Capillary Action