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Revision on Experimental Chemistry Flashcards | StudBud
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Revision on Experimental Chemistry
Revision on Experimental Chemistry
17 terms
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StudBud Administration
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169 plays
elements, atoms, compounds, Ions, reactants, products, Isotopes, word equations, formulae
Flashcards
17 cards
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Questions
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Answers
1
Which of these is reactant? Magnesium+Oxygen=Magnesium oxide
Magensium oxide
Magnesium
all above
Magnesium and Oxygen
2
Atomic number is:
the number of neutrons in the nucleus of an atom.
the number of electrons in the nucleus of an atom.
the number of proton and neutron in the nucleus of an atom.
the number of protons in the nucleus of an atom.
3
Symbol "Ca" represents element:
Kalcium
Calcium
Clasium
Casium
4
Symbol for a Sodium is:
S
So
Na
N
5
What is a compound? A thing.....
that is found in chemistry.
that is composed of one atom.
that is made of water.
that is composed of two or more separate elements.
6
This formula "KCl" represents
Chloride nitrate
Krypton Chloride
Potassium chloride
Krystal sugar
7
What is an element? An element is a substance which contains
different atoms.
molecules of water.
atoms of oxygen.
atoms of one kind.
8
Symbol for Chlorine is:
Ch
CL
Ci
Cl
9
Positive Ion means?
an atom or molecule which lost one or more electrons
an atom or molecule which gained one or more electrons
an atom or molecule which lost one or more neutrons
an atom or molecule which lost one or more protons
10
This formula "HCl" represents?
Hydrogen Chloride
Hydrochloric acid
Hydrachloric acid
Hydrochloric asid
11
Isotope is an element that contains:
neutrons, electron and protons
equal numbers of protons but different numbers of neutrons
equal numbers of protons and neutrons
equal numbers of protons but different numbers of electrons
12
What is a mass number?
The total number of electrons and neutrons in a nucleus.
The total number of neutrons in a nucleus.
The total number of particles in the atom.
The total number of protons and neutrons in a nucleus.
13
What colour would show as pH of acids with universal indicator?
green
red to yellow
blue to violet
red and blue
14
What is an universal indicator? A mixture....
all above
that describes what is acids and bases.
that shows how to measure acids and bases.
that changes colours, used for testing acids and bases.
15
An electron arrangement for Chlorine 17 is
2.2.2.2.8.7
2.8.7
2.6.6.1
2.8.8.7
16
Symbol "Ne" represents element:
Neon
Noen
Neone
Noel
17
Symbol for Hydrogen is:
Hy
Hg
He
H
