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Chronobiology - the study of periodic events in living systems Quiz

Chronobiology - the study of periodic events in living systems Quiz

Chronobiology - the study of periodic events in living systems Quiz Test

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Quiz Questions And Answers

Most atoms are neutral. To become a positive ion the atom must:

Lose electrons
Gain electrons and protons
Gain electrons

What are the parts of an atom?

Nucleus, element, carbon, space
Protons, neutrons, electrons, nucleus
Ions, electrons, neutrons, water

The change that occurs when a substance changes from a solid to a gas is referred to as:

Vaporization
Deposition
Condensation
Sublimation

Which of these mixtures are mixed so well that the mixture looks like a substance (homogenous)?

Mechanical Mixture
Solutions
Colloids

What do you call pure substances that are formed from the attraction between positive ions and negative ions?

Ionic atoms
Ionic charges
Ionic compounds

Balance the charges in the ionic compound Magnesium Chloride, the new formula would be:

Mg2Cl
Cl2Mg
MgCl2

Which of these properties are uncreative, colourless and odourless in room temperature?

Noble Gases
Oxygen
Halogens

Since atoms are neutral, the number of electrons is equal to the number of:

Nucleus
Ions
Protons

What are chemical formulas used to represent?

Atoms
Elements
Symbols
Compounds

What are the 2 different types of ions?

Polyatomic and multivalent
Electrons and protons
Negative and positive
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