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Chemistry

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Ozella Dooley

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Cards in this guide (10)
What is a qualitative observation

A Qualitative Observation is an observation that uses the five senses. sight, smell, hearing, touch, and taste. An example of this would be: "This tree has bright green leaves that have soft bumps on them."

The opposite is a quantitative observation, which is measured in numbers, such as the weight or length of an object. For example, 5 pounds or 100 inches. For instance "The stratosphere begins 40 kilometers above the surface of Earth."

Which two elements make up three-fourths of the human body

The two elements that make up 3/4 of the human body are Oxygen, and Hydrogen.

What best defines what matter is

The most essential and defining characteristic of matter is inertia.

What happens when a magnesium ion is attracted to a chlorine ion

They form an Ionic compound.

Which part of the body contains bile an enzyme that helps break down lipids

Bile is made in the liver and secreted into the Small intestines to neutralize the acidity of the chyme leaving the stomach. When there is no food entering the small intestines Bile is stored in the Gallbladder until it is needed.

What molecules form protiens when linked together with covalent bonds

Amino acids are the molecules. Dipeptide bonds is the specific name for the covalent bonds.

Why is it a good idea to study experimental subjects in their natural environment

D.So that they respond to the test as they would under normal conditions

What is true of an Arrhenius acid

An Arrhenius acid donates H+ ions. (apex).

The molecules that make up food contain energy. how does the human body get energy from the food molecules

by breaking chemical bonds in the molecules

What macromolecule is often made up of three fatty acids bound to a glycerol molecule

These molecules are triglycerides.

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