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Basic C hemistry Lecture I
Basic Earth Chemistry
Physical Properties Density Color Hardness Melting Point Boiling Point Ability to conduct electricity
Density Used to describe matter. Density is the measure of the mass of an object divided by its volume. An object that is more dense than water will sink, whereas one that’s less dense will float.
Density = Mass/Volume D=m/v A small cube has a volume of 2 cubic centimeters and its mass is 8 grams. What is the cubes density? ______grams per cubic centimeter
Chemical Properties Example: Water Made up of 2 hydrogen molecules and one oxygen molecule. Has specific melting, boiling, and freezing point.
A chemical property of Iron is that it interacts with oxygen to form rust
A chemical property of helium is that it does not usually interact with other substances,
Structure of an Atom
Protons: positively charged subatomic particles (+) Neutrons: neutrally charged subatomic particles (N) Electrons: Negatively charged subatomic particles.
IONS Electrically charged (non-neutral) atoms are called ions. This happens when atoms gain or lose electrons.
Always have in notebook!!!!!!!
Element: Substance that cannot be broken down into simpler form by ordinary chemical means.
3 Physical Forms of Matter Solids Liquids Gases
Solids Molecules are in a fixed position Result in definite size and shape.
Liquids Molecules are close together and move freely. Takes the shape of its container.
Gases Molecules are freely moving and independent. Completely fills its container.
Plasma Most of the matter in the universe is in the plasma state. Matter in this state is composed of ions and electrons. Stars are composed of matter found in the plasma state.
Chemical Bonds 1. Ionic Bonds: Interaction of electrons from the outermost energy level of two or more atoms. Example: NaCl
Chemical Bonds 2. Sharing of Electrons Example: Water
Which bonds are stronger? Covalent bonds are far weaker than the powerful attraction in ionic bonds
Earth/Chemistry Link Alloys: solution of two or more metals Brass: A solution of Copper and Zinc Bronze: A solution of Copper and Tin
Density Problem The volume of a mineral is 9 cubic centimeters. Its mass is 81 grams. What is the density of the mineral? ______ grams per cubic cm.
The Properties of Matter
Matter and Atomic Structure
Chapter 2 Minerals.
Protons, electrons, and neutrons
Chemistry Review Matter- anything that has mass and takes up space Matter Anti- matter.
Biochemistry 2.1. Matter Chemical changes in matter are essential to all life processes. Matter: Anything that occupies space and has mass. Mass: The.
STATES OF MATTER The Four States of Matter Four States Solid Liquid Gas Plasma.
Benchmark and CRCT Notes (for Folder) Benchmark on Thursday Oct 3 rd !!!
The smallest way to describe our Earth. Atoms This is the smallest unit of an element having the same properties of that element Arrangement and types.
Physical Science: Ch 6 Notes A. Atoms Bond to form Compounds Compound- a substance that is composed of two or more different elements joined in a fixed.
MATTER AND ATOMIC STRUCTURE matter = anything that takes up space and has mass; amount determines mass of object.
Chapter 4 Section 1 Matter Objectives
Matter and its Changes Atoms Matter is made up of atoms Matter is anything that takes up space and has mass Atoms are the “building blocks” of life.
Chapter 2 Introduction What is matter? What isn’t? What is matter? What isn’t? Matter: Solids, liquids, gases, plasma Matter: Solids, liquids, gases, plasma.
Matter and its Changes. Atoms Matter is made up of atoms Matter is anything that takes up space and has mass Atoms are the “building blocks” of life.
Chapter 4- Earth Chemistry
Ch 4 Earth Chemistry BondingAtoms Equation s TermsRandom
Chapter 2.1. Why do we care about chemistry in Earth Science? The earth is made up of rocks and minerals. Rocks and minerals are made of elements.
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