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WorksheetsLong Quiz in GenChem1
Total questions: 32
Worksheet time: 6hrs 40mins
In one experiment, 0.558 g element X was found to react with 0.320 g element Y to form only one product, compound Z. How many grams of compound Z were formed?
0.238 g
0.558 g
0.320 g
0.878 g
When 24.3 g magnesium reacts completely with 16.0 g oxygen, exactly 40.3 g magnesium oxide is formed. Which of the following laws is illustrated by this observation?
Law of Definite Proportion
Law of Multiple Proportion
Law of Conservation of Mass
Law of Conservation of Energy
Which of the following statements is consistent with Dalton’s Atomic Theory?
The atoms of element A are identical with the atoms of another element D.
The atoms of element A have the same mass as the atoms of another element D.
The atoms of element A are different from the atoms of another element D.
The atoms of element A have the same properties as the atoms of another element
According to Dalton’s atomic theory, which of the following is involved in a chemical reaction?
The conversion of one atom into another
The combination of atoms
The formation of a new atom
The disappearance of an atom
In which of the following quantities will two isotopes of an element have different values?
Atomic number
Mass number
Number of protons
Number of electrons
Which of the following information on the number of protons (p), electrons (e) and neutrons (n) is correct for 92U238?
92 p, 92 n, 92 e
92 p, 146 n, 92 e
238 p, 146 n, 238 e
146 p, 82 n, 92 e
What is the mass number of an atom which has 11 protons, 11 electrons, and 12 neutrons?
11
12
22
23
Which of the following data is correct for the Magnesium with 2 cation (atomic number = 12)?
12 protons and 13 electrons
12 protons and 10 electrons
14 protons and 12 electrons
12 protons and 14 electron
Who is this Chemist that formulated a concept by describing one of his experiments involving mercuric oxide?
John Dalton
Joseph Proust
Antoine Lavoisier
Democritus
Cu13+ has a atomic number of 29 and mass number of 64. Which one of the following is correct?
A = 64
Z = 29
p = 29
e = 13
n = 35
Isotope = 2964Cu13+
A = 13
Z = 29
p = 29
e = 16
n = 35
Isotope = 2964Cu13+
A = 64
Z = 29
p = 29
e = 42
n = 35
Isotope = 2964Cu13+
A = 64
Z = 29
p = 29
e = 16
n = 35
Isotope = 2964Cu13+
It has properties that are intermediate between those of metals and nonmetals.
(a)
It is a handy tool that correlates the properties of the elements in a systematic way and helps us to make predictions about chemical behavior.
(a)
Molecules containing more than two atoms are called?
(a)
It is an atom or a group of atoms that has a negative charge.
(a)
If the element Tungsten has 32 negative charge, what is the number of its neutrons if the element has A=184?
(a)
How many valence electrons does a Bohrium element have?
(a)
How many atomic orbitals does a Copernicium element have?
(a)
Element Tin has four electrons on its outer shell. Find the atomic number of this element.
(a)
Element Hydrogen and Nitrogen exist in our nature with how many atoms?
(a)
It may contain atoms of the same element or atoms of two or more elements.
(a)
Click the image to view. Answer item no. 21
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Click the image to view. Answer item no. 22
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Click the image to view. Answer item no. 23
(a)
Click the image to view. Answer item no. 24
(a)
Click the image to view. Answer item no. 25
(a)
Click the image to view. Answer item no. 26
(a)
Click the image to view. Answer item no. 27
(a)
Click the image to view. Answer item no. 28
(a)
Click the image to view. Answer item no. 29
(a)
Click the image to view. Answer item no. 30
(a)
Write the isotope symbol of element Neon and draw its atom that includes the atomic orbitals and number of electrons on each orbit.
Write the isotope symbol of element Fluorine and draw its atom that includes the atomic orbitals and number of electrons on each orbit.
