MCHEM MR JOHNSON’S SEMESTER 1 CHEM EXAM REVIEW – ANSWER THE FOLLOWING AND GET ‘PREPARATION PTS’ ADDED TO YOUR EXAM GRADE; THESE WILL BE COLLECTED THE DAY OF THE EXAM.
Re-register, then redo all the chemthinks we have done; get a registration number from me.
Define; chemistry, mass, volume, element, compound, property, atom, molecule,heat, pure substance
Name the 3 states of matter, then sketch how the particles would appear.
List some physical properties and 1 chemical property of water.
Compare elements, compounds, heterogeneous mixtures and homogeneous mixtures; give examples of each.
Give examples of metals and nonmetals; tell where to find them on the periodic table.
Change 1Km to m; 1mL to L; 1mm to m ; 1m to cm; 1L to mL
How are mass and weight different? Which would a dieter want to lose?
Finish the equations using m, v, and d; d= ; m= ; v=
What is the mass of an object that is 5cm* 2cm*4cm if its density is 2g/cm3? What is the density of water? Will this object float or sink in water? Why?
Find the volume of a rock that makes water in the beaker go from 250mL to 675mL.
Change 56,000,000 to scientific notation. Change 1.4*10-7 to a standard number
Give units for mass, volume, density, length, time, weight, & temperature
List the steps of scientific method.
Explain the ‘densitees’
Make a table for protons, neutrons and electrons, then make columns for charge, mass, location in atom.
Explain what isotopes are and give examples. (be sure to mention at mass, and neutrons)
Explain what ions are and give examples.(be sure to mention electrons)
Compare the flame and spectrum test. What was happening to electrons in these tests?
What does the period tell you? The group? Which is which on the periodic table?
Make a table for the element families we learned. Make columns for group#, # outer electrons, and properties(2)
How many atoms in a mole? What is the mass of 1 mole of carbon? How many moles is 46g of sodium?
Make a table for the 3 types of bonding, include columns for type of elements involved, what the outer electrons do, and example.
Write names for MgO , FeS, HI, CaO, CuS, define binary compounds
Write formulas for chromium II sulfide, strontium nitride, carbon monoxide write ions if present.
Make a diagram of a silicon atom, showing protons, neutrons, and electrons in levels.
Make a diagram of a calcium ion, showing protons, neutrons, and electrons in levels.
Find the % sugar in gum if it weighs 6g before chewing and 4g after.
Attach % composition lab