What four elements most similar to fluorine in column VII A.
What is iodine, astatine, bromine, chlorine.
100
Which of the following correctly compare the elements on the right side of the periodic table with the left side?
What is the elements of the left side are better conductors of electricity than the right side
100
Which equipment will best separate a mixture of sand and sugar.
What is filter paper water beakers.
100
Separate the contents. Water, glass marbles, iron marble.
What is Evaporate the water, use a magnet to separate the iron marbles out.
200
A molecule of hydrogen peroxide has 1 more oxygen atom than a molecule of water. What is the chemical formula of hydrogen peroxide?
What is h2o2
200
Use the periodic table to find the name of the element that goes with each symbol. Then state whether the element is a metal a metalloid or a nonmetal.
AG
What is silver metal.
200
Which of the following is a property of fluorine a nonmetal.
What is It is a gas at room temperature and pressure.
200
Separate the contents. Water, Glass Marbles.
What is Evaporate the water out.
200
Use the periodic table to find the name of the element that goes with each symbol. Then state whether the element is a metal a metalloid or a nonmetal.
P
What is Phoshorus, non-metal.
300
Propane has the chemical formula of c3h8. how many hydrogen and carbon atoms are in a molecule of propane?
What is propane has the chemical formula that carbon has, 3 and hydrogen 8
300
Use the periodic table to name two metals other than lithium that probably tarnish quickly in air.
What is Sodium and magnesium
300
Which element is least likely to combine with another to form a molecule?
What is neon a noble gas.
300
five molecules of methane contain 5 carbon atoms and 20 hydrogen atoms. What is the chemical formula of methane?
What is CH4
300
Use the periodic table to find the name of the element that goes with each symbol. Then state whether the element is a metal a metalloid or a nonmetal.
Li
What is Litium, Metal
400
How many hydrogen and oxygen atoms exist before the reaction?
What is 8 hydrogen 4 oxygen.
400
Name two elements other then chlorine that are likely to form molecules with sodium.
What is chlorine potasium, and cesium
400
which of the following could be the amounts of X and Y in the reaction.
What is 400g of X and 800g of Y.
400
If Dr. H made 116g of table salt, and started with 68 g of chlorine gas, then how many grams of sodium metal did he start with?
What is 48 grams of sodium.
400
Use the periodic table to find the name of the element that goes with each symbol. Then state whether the element is a metal a metalloid or a nonmetal.
Te
What is Telceriam Metaloid.
500
How many hydrogen and oxygen atoms exist after the reaction?
What is 8 hydrogen and 4 oxygen
500
Identify the name of the elements in each molecule.
LIF
N2
MGL2
CL2
What is lithium and fluorine, nitrogen, magnesium and iodine, chlorine.
500
Which of the following is an example of a chemical changes.
What is an iron bridge turning brownish red over the years.
500
Separate the contents. Salt Water, glass marbles, iron marbles.
What is Evaporate the water. Use a magnet to get the iron marbles. Use a filter to separate the salt and glass marbles.
500
Use the periodic table to find the name of the element that goes with each symbol. Then state whether the element is a metal a metalloid or a nonmetal.
I