Which of the complying with statements about isotopes is TRUE? A. Isotopes have the very same variety of proloads and also neutrons, however vary in the variety of electrons they contain. B. Isotopes of an element have the exact same atomic number, but have different atomic masses. C. The chemical properties of ALL of an element"s isotopes are EXACTLY the very same. D. The atomic weight of any type of aspect is about equal to the mass variety of its many numerous isotope. E. The second, 3rd, and fourth answers are correct. F. All of the statements are true regarding isotopes.
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If neutral atoms come to be positive ions, they _______. A. lose proloads B. get protons C. acquire neutrons D. get electrons E. shed electrons
If the DNA molecule resembles a twisted ladder, which chemical units develop the sides of the ladder? A. Amino acids and also phosphates B. Alternating deoxyribose sugar and phosphate teams C. Alternative ribose sugar and phosphate groups D. Pairs of nitrogenous bases E. Polypeptide chains
Equipment A has actually a pH of 4. Equipment B has a pH of 13. Identify the correct statement. A. Systems A is more fundamental than solution B (Systems A has actually even more hydrogen ions). B. Equipment A is even more acidic than solution B (Systems B has actually more hydrogen ions). C. Systems A is more fundamental than solution B (Systems B has actually even more hydrogen ions). D. Equipment A is even more acidic than solution B (Solution A has actually even more hydrogen ions).
Proteins are comprised of many kind of _______. A. amino acid molecules B. monosaccharide molecules C. triglyceride molecules D. nucleotide molecules E. fatty acid molecules
The nucleus of an atom is the area of which kinds of subatomic particles? A. Electrons and also protons B. Neutrons and prolots C. Protons only D. Electrons and neutrons E. Electrons and also molecules
Which of the complying with accurately defines enzymes? A. They are organic catalysts. B. They are consumed during chemical reactions. C. They react best at extremely high temperatures. D. They are lipoproteins. E. They are major power sources for the cell.
All of the following are true about the importance of water, an inorganic compound, in the body EXCEPT _______. A. water serves a protective function in the body B. to digest foodstuffs or break dvery own organic molecules, water molecules are added to the bonds of the larger molecules C. water is a terrific solvent because it is nonpolar D. water is an essential reactant in some types of chemical reactions E. water absorbs and releases large amounts of heat before its temperature alters appreciably
Energy that is in movement is _______. A. energy uncovered in a rock poised at the height of a hill B. described as kinetic energyC. potential energy the energy stored in the D. bonds of chemical substances E. found in a muscle at rest
Nucleotides, the structure blocks of nucleic acids, are comprised of _______. A. a nitrogen-containing base, any kind of simple sugar, and also a phosphate group B. a calcium-containing base, a pentose sugar, and also a phosphate group C. a nitrogen-containing base and also a phosphate team only D. a nitrogen-containing base, a pentose sugar, and a phosphate team E. a nitrogen-containing base, a pentose sugar, and a sulphate group
The atomic number identifies the element and describes the variety of _______. A. neutrons and also prolots in the nucleus B. atoms C. proloads D. molecules E. neutrons
The feature of ATP is to _______. A. code for mRNA B. act as a hormone C. allow cells to use power straight from basic sugars D. develop DNA E. carry out a kind of chemical power that is usable by all body cells
The only electrons that are crucial once considering bonding behavior are those in the _______ shell. This shell is referred to as the _______ shell. A. outermost; valence B. innermost; valence C. outermost; binding D. middle; binding E. next to last; valence
The term "_______" describes a distinctive substance that cannot be decreated or broken dvery own into much easier substances. A. facet B. atomic symbol C. periodic table D. compound E. molecule
What bonds are developed as soon as electrons are common equally? A. Hydrogen bonds B. Iron bonds C. Nonpolar covalent bonds D. Ionic bonds E. Polar covalent bonds
Glycogen → glucose is an example of which pattern of chemical reaction? A. Dehydration reaction B. Hydrolysis reactivity C. Exchange reactivity D. Synthesis reaction E. Decomplace reaction
Which of the complying with is NOT true around matter? A. Gases have neither a definite shape nor a definite volume. B. Solids have a definite shape and volume. C. Matter is anything that occupies space and also has mass (weight). D. Matter exists in solid, liquid, and gaseous states. E. Liquids have actually neither a definite shape nor a definite volume.
Which of the following is NOT true around proteins? A. Amino acid chains containing fewer than 50 amino acids are referred to as polypeptides. B. Proteins account for about 10 percent of the organic matter in the body. C. Globular proteins that play essential roles in essentially all organic processes are likewise called sensible proteins. D. The structure blocks of proteins are amino acids. E. Fibrous proteins are likewise dubbed structural proteins and also show up most often in body frameworks.
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Which of the complying with is NOT true of carbohydrates? A. An example of a polysaccharide found in plants is starch. B. Carbohydprices are the main energy molecules for many living points. C. A glucose molecule is a polysaccharide stored by the liver. D. Glucose in an instance of a carbohydrate. E. Disaccharides are a type of carbohydrate.
When you ride a bike, the body converts chemical energy to _______ energy to move the limbs crucial to revolve the pedals
Chemistry: The Central Science14th EditionBruce Edward Bursten, Catherine J. Murphy, H. Eugene Lemight, Matthew E. Stoltzfus, Patrick Woodward, Theodore Brown
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