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Chemistry Exam Study
Intro to Chem Unit 3-4
Question | Answer |
---|---|
A certain substance contains all boron atoms. What type of substance is it? | Element |
Sodium chloride has chemical and physical properties that are half way between the properties of sodium and chlorine. True or False? | (False. Sodium chloride is a new substance with properties that are different from those of the constituent elements.) |
How many sulfur atoms are in a molecule of S(8)? | 8 |
What type of substance is ice that is made from pure water? | Compound |
What is the symbol for sulfur? | S |
Fill in the blank: Be, Mg, Ca, Sr, Ba and Ra are in the same periodic _______. | Group |
How many sulfur atoms are in a molecule of SO2 ? | 1 |
Give the symbol for sodium. | Na |
Lithium (Li) and Potassium (K) react with water to generate hydrogen gas. What gas would you expect sodium (Na) to generate when it is mixed with water? | Hydrogen Gas. |
Photons of visible light have greater energy than x-rays. True or False? | False. |
What type of orbital has a "dumbell" shape? | p |
What type of orbital has a spherical shape? | s |
Which orbital is largest? | 4s |
Which orbital is smallest? | 1s |
Convert the following number to scientific notation: 0.000567 | 5.67*10-4 |
Which has the least mass? | electron |