1) What is the symbol and decimal equivalent for the following metric prefixes: micro and kilo Group of answer choices m, 10-3 and k, 103 µ, 106 and c, 10-3 µ, 10-6 and k, 103 m, 103 and c, 10-3 2) Which of the set of numbers below represents measurements that have good precision and good accuracy? The true value is 4.75 Group of answer choices 3.64, 3.82, 3.74, 3.98 4.71, 3.98, 5.78, 3.03 4.79, 4.68, 4.81, 4.83 4.32, 4.93, 4.05, 4.11 3) Identify the following as either a chemical or physical property: hardness, corrosiveness, flammability and color Group of answer choices chemical, chemical, physical, physical chemical, physical, chemical, physical chemical, physical, physical, chemical physical, chemical, chemical, physical
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Chemistry
1) What is the symbol and decimal equivalent for the following metric prefixes:
micro and kilo
Group of answer choices
m, 10-3 and k, 103
µ, 106 and c, 10-3
µ, 10-6 and k, 103
m, 103 and c, 10-3
2) Which of the set of numbers below represents measurements that have good precision and good accuracy?
The true value is 4.75
Group of answer choices
3.64, 3.82, 3.74, 3.98
4.71, 3.98, 5.78, 3.03
4.79, 4.68, 4.81, 4.83
4.32, 4.93, 4.05, 4.11
3) Identify the following as either a chemical or physical property:
hardness, corrosiveness, flammability and color
Group of answer choices
chemical, chemical, physical, physical
chemical, physical, chemical, physical
chemical, physical, physical, chemical
physical, chemical, chemical, physical
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