With regard to the pH scale, a solution with a pH A. close to 14 is considered a strong base.
B. lower than 7 is considered basic.
C. higher than 7 is considered an acid.
D. of 6 is considered neutral.
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Answer:
close to 14 is considered a strong base.
Explanation:
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Determine the mass of hydrogen chloride needed to react completely with 12.8 g of aluminum to produce aluminum chloride and hydrogen gas.
O B. Ribose
O C. Starch
O D. Fructose
O E. Galactose
Answers
Starch is a carbohydrate which is a polysaccharide and not a simple sugar like glucose, fructose,etc.
What are carbohydrates?
A carbohydrate is defined as a bio-molecule which consists of carbon,hydrogen and oxygen atoms which are usually in the ratio of 2:1 with the empirical formula C(H₂O)
.
This term is most commonly used in biochemistry as a synonym of saccharide which is a group of sugars, starch and cellulose.
They perform various functions in living organisms. They serve as an energy source and as well as structural components . They are a key component in providing nutrition and are found in wide variety of natural as well as processed foods.
Carbohydrates occur as cellulose in the cell walls of plants and is one of the components of insoluble dietary fibers.
Learn more about carbohydrates,here:
#SPJ2
Answer:
C
Explanation:
The polysaccharide is starch which contains many glucose molecules.
The rest are either monosaccharide or disaccharides.
the conclusion
the statement the writer attempts to prove
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Answer:
Washing your hands properly.
B) The atomic orbitals overlap and electrons are shared between the atoms forming bonds.
C) A transfer of electrons forms ions which are electrostatically attracted forming bonds.
D) Orbital exchange occurs between the atoms to redistribute the electrons and form bonds.
Answers
Answer:
B
Explanation:
A) The sea of electrons only happen with metalic bond, a bond with two metalic elements.
B) As both elements in ammonia (N and H) are non-metals we don't observe an transfer of electrons, both elements share the number of electrons needed to stablize it (3 electrons for the N and 1 for the H).
C) To have a transfer of electrons, we need a bond between a metal and a non-metal, in this case, N and H are non-metals, so this doesn't happen.
D) The electrons are shared, only the electrons nothing happens between the orbitals.
How is electron movement related to covalent bonding in ammonia, NH3?
A) Electrostatic sharing in a sea of electrons around the atoms allows bonds to form.
B) The atomic orbitals overlap and electrons are shared between the atoms forming bonds.
C) A transfer of electrons forms ions which are electrostatically attracted forming bonds.
D) Orbital exchange occurs between the atoms to redistribute the electrons and form bonds.
The electron movement related to covalent bonding in ammonia, NH3 is The atomic orbitals overlap and electrons are shared between the atoms forming bonds. The answer is letter B.