I CAN EQUATE TO THAT CHEMICAL
IONIC & MOLECULAR
YOU FORGOT THE PERIOD ...
WHATS THE MATTER?
THE FIRST DAY ...
100
What are the elements in P4 + S8 =P4S5?
Phosphorus and Sulfur.
100
What is the difference between molecular and ionic?
Molecular has two non-metals, ionic has one metal one non metal.
100
How many elements are on the periodic table?
103
100
What are main four parts of an atom?
nucleus, protons, electrons and neutrons.
100
What was the headline of the topic we discussed on the first day of science 10?
1.1 Investigating and Working with Chemicals.
200
What does 2NaCl decompose to?
2Na + Cl2
200
What is the name name for NH3?
Ammonia
200
What direction and exactly how are the elements arranged on the periodic table?
From left to right, lowest atomic mass to highest.
200
What are four of the five states of matter?
Solids, Liquids, Gases, Plasma's and condensates.
200
What was the meaning of MSDS?
Materials Safety Data Sheet.
300
What are the reactants in Al + 3KNO3?
3K + Al(NO3)3
300
What are the prefix number names from one to six?
mono, di, tri, tetra, penta, hexa.
300
Who is Dmitri Mendeleev?
This man invented the first periodic table
300
What if you had a block of ice on a table, what are the names and stages it will go through before turning into a gas?
It will melt into a liquid then it will evaporate into a gas.
300
What are the three physical properties of chemicals?
melting point, boiling point and odour.
400
What numbers do you add to balance K(s) + Hz0(l) --> KOH(aq) + H2?
2, 2, 2, 1.
400
What are the two prefix numbers in Dinitrogen Tetroxide?
two and four
400
What is the number of valence electrons that every element wants on the periodic table?
Eight valence electrons.
400
What are the results of acids with: metals, blue litmus paper and bases?
Acids corrode metals, they turn blue litmus into the color red and they neutralize bases.
400
What is one reason that chemistry is important?
Answers may vary. Ex, Treat illnesses, preserve foods etc.
500
What kind of reaction is K(s) + 1Br2(l) --->2KBr(s)?
Synthesis or Formation.
500
What are all the components in Ca(HCO3)2?
Calcium, Hydrogen, Carbon, Oxygen.
500
What are the elements formed in a seven that always comes in more than one? And what other two elements are included in the seven?
Nitrogen, Oxygen, Flourine, Chlorine, Bromine. Then Sulfur and Hydrogen are included.
500
What is a very strongest acid that is located in our body, but doesn't harm us? And what is it used for?
our stomach acid and it's used for digestion of different foods and such.
500
What if chemistry (the mixing of elements, the periodic table etc.) didn't exist and only chemicals were present, would it be safe?
Answers may vary.
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