Which of the following facets is not among the four most common facets in life things?(a) nitrogen(b) zinc(c) carbon(d) oxygen(e) hydrogen


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An atom with a positive charge has __________.(a) much more protons 보다 electrons(b) much more electrons than protons(c) more neutrons 보다 protons(d) more protons 보다 neutrons(e) equal numbers of protons, electrons, and also neutrons
An atom"s proton are uncovered in that __________.(a) nucleus(b) isotope(c) molecule(d) neutron(e) electron cloud
An uncharged atom of gold has an atomic number of 79 and also an atom mass the 197. This atom has__________ protons, __________ neutrons, and __________ electrons.(a) 79 . . . 118 . . . 79(b) 118 . . . 79 . . . 118(c) 276 . . . 118 . . . 79(d) 118 . . . 276 . . . 118(e) 79 . . . 276 . . . 79
Isotopes that an facet have the same number of __________ and also different number of __________.(a) protons . . . Neutrons(b) proton . . . Electrons(c) neutrons . . . Protons(d) neutron . . . Electrons(e) electrons . . . Protons
The second electron covering of an atom have the right to hold a best of __________ electron(s).(a) 1(b) 2(c) 3(d) 6(e) 8
. One atom through an electrical charge is a(n) __________.(a) isotope(b) molecule(c) ion(d) radioisotope(e) compound
In the complying with reaction, what form of link is holding the 2 atoms together?K + Cl → K+ + Cl— → KCl(a) hydrophilic(b) ionic(c) hydrophobic(d) hypertonic(e) covalent
Sulfur has actually an atomic number of 16. How plenty of covalent bonds deserve to sulfur form?(a) 1(b) 2(c) 3(d) 4(e) 0
Why is water considered a polar molecule?(a) The oxygen is found between the 2 hydrogen atoms.(b) The oxygen atom attractive the hydrogen atoms.(c) It stays liquid also at really low temperatures.(d) The oxygen end of the molecule has a slight negative charge, and also the hydrogen finish has aslight hopeful charge.(e) Both hydrogen atoms space at one finish of the molecule, and also oxygen is in ~ the other end.
d. The oxygen finish of the molecule has actually a slight negative charge, and also the hydrogen finish has a slight confident charge
Adjacent water molecule are associated by the __________.(a) sharing of electrons between the hydrogen the one water molecule and also the oxygen of anotherwater molecule(b) electric attraction between the hydrogen of one water molecule and also the oxygen that anotherwater molecule(c) share of electrons between surrounding oxygen molecules(d) electrical attraction between the hydrogen atoms of surrounding water molecules(e) sharing of electrons between hydrogen atom of adjacent water molecules
b. Electric attraction in between the hydrogen of one water molecule and also the oxygen of another water molecule
What are the reactant(s) in the complying with chemical reaction?C6H12O6 + 6 H2O + 6 O2 → 6 CO2 + 12 H2O(a) CO2 and also H2O(b) CO2 only(c) C6H12O6, H2O, and also O2(d) O2 only(e) C6H12O6, H2O, O2, CO2, and H2O
The tendency of molecule of the exact same kind to stick with each other is called __________.(a) bonding(b) cohesion(c) polarity(d) adhesion(e) interactivity
Sweating cools your body by __________.(a) cohesion(b) radiation(c) adhesion(d) evaporative cooling(e) hydrogen bonding
Sugar dissolves as soon as stirred right into water. The sugar is the __________, the water is the __________,and the sweetened water is the __________.(a) systems . . . Solvent . . . Solute(b) solute . . . Solvent . . . Solution(c) solvent . . . Solute . . . Solution(d) equipment . . . Solute . . . Solvent(e) solvent . . . Solution . . . Solute
A base __________.(a) clears H2O molecule from a solution(b) decreases the pH of a solution(c) add to HOH molecule to a solution(d) clears OHions indigenous a solution(e) gets rid of H+ions native a solution
Relative come a pH that 6, a pH of 4 has actually a __________.(a) 200 times greater H+concentration(b) 100 times greater H+concentration(c) 20 times higher H+concentration(d) 20 times reduced H+concentration(e) 100 times lower H+concentration
When a basic is added to a buffered solution, the buffer will __________.(a) donate OHions(b) expropriate water molecules(c) donate H+ions(d) type covalent bonds with the base(e) expropriate H+ions
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Chemistry: The main Science14th EditionBruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemay, Matthew E. Stoltzfus, Patrick Woodward, Theodore Brown
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