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MATH SOLVE
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Which statement best describes chemical properties of matter?AChemical properties, such as density, must be observed when a substance is in its natural state at room temperature and normal atmospheric pressure.BChemical properties, such as reactivity, must be observed when a substance is in its natural state at room temperature and normal atmospheric pressure.CChemical properties, such as combustibility, are generally observed as the identity of a substance changes and one or more new substances form.DChemical properties, such as boiling point, are generally observed as the identity of a substance changes and one or more new substances form.
Algebra
10 months ago
Which statement best describes how to determine whether fx = x4 – x3 is an even function? A Determine whether –x4 – –x3 is equivalent to x4 – x3. B Determine whether –x4 – –x3 is equivalent to x4 + x3. C Determine whether –x4 – –x3 is equivalent to –x4 – x3. D Determine whether –x4 – –x3 is equivalent to –x4 + x3.
Algebra
10 months ago
Which statement best describes human eye color?
Algebra
10 months ago
Which statement best describes Mendelian or complete dominance?When both the dominant and recessive allele shows.When the dominant and recessive alleles mix to form a third phenotype.When the dominant trait or allele completely masks the recessive allele.
Algebra
10 months ago
Which statement best describes Shah Mohammad Reza Pahlavi?A. He instituted education and economic reforms, but limited civil liberties.B. He opposed economic reforms and allowed the government to be corrupt.C. He instituted social reforms, but limited the rights of women.D. He opposed land reforms and allowed wealthy landowners to keep their land.
Algebra
10 months ago
Which statement best describes the Allied strategy for winning World War II?T planned to defeat Japan, then stage the invasion of Europe from Britain to defeat Germany before moving on to the Soviet Union.T planned to invade North Africa together from the Soviet Union, defeat Germany, and then focus on the Pacific.T planned to retake France from Germany together, invade Africa from Italy, and then defeat Japan.T planned to retake North Africa to invade through Italy, invade France from Britain and Germany from the Soviet Union, and then combine forces to defeat Japan.
Algebra
10 months ago
Which statement best describes the difference between xylem and phloem?A..Xylem transports water and nutrients in the plant, and phloem transports water and sugar.B..Xylem cells make up vascular tissue, and phloem cells make up ground and dermal tissue.C..Xylem tissue is found at the growing parts of plants, and phloem is found on the outer part of plants.D..Xylem cells are thin-walled and tubular, and phloem cells are thick walled and strengthened by lign
Algebra
10 months ago
Which statement best describes the formation of metamorphic rocks?
Algebra
10 months ago
Which statement best describes the process of making a solution by diluting a stock solution?Add more solute to decrease the concentration.Add more solute to increase the concentration.Add more solvent to decrease the concentration.Add more solvent to increase the concentration
Algebra
10 months ago
Which statement best explains how the mass of an atom is organized?A most of the mass is contained in the nucleus B the mass is spread evenly throughout the whole atomC the mass is spread evenly thoughout the electron cloudD most of the mass is contained in the electron cloud
Algebra
10 months ago
Which statement best explains why heating a liquid affects its viscosity? The molecules move faster at higher temperatures and overcome attractions more easily. The molecules move faster at higher temperatures, and the attractions between them increase. The molecules move slower at higher temperatures and overcome attractions more easily. The molecules move slower at higher temperatures, and the attractions between them decrease.
Algebra
10 months ago
Which statement best explains why Whitman chose the phrase “every atom” for the last line?
Algebra
10 months ago
Which statement correctly describes a chemical reaction?O Reactants come out of a reaction.Energy is always releasedBonds between atoms break and new bonds form.Products go into a reaction,Mark this and returnSave and ExitSube
Algebra
10 months ago
Which statement correctly describes glucose C6H12O6?It is made of matter and contains twenty-four molecules.It is an element made of three types of atoms.It is an atom made up of carbon, hydrogen, and oxygen.It is a compound made of twenty-four total atoms of three different elements.
Algebra
10 months ago
Which statement correctly describes the actual yield and the theoretical yield of a reaction?The actual yield is calculated from the reactant amounts, but the theoretical yield must be measu for each instance of a reaction.The actual yield is calculated from the amount of the limiting reactant, and the theoretical yield is calculated from the amount of the excess reactant.The actual yield depends on the reaction conditions, but the theoretical yield varies only with reactant amounts.The actual yield represents the maximum yield possible, and the theoretical yield assumes perfect reaction conditions.
Algebra
10 months ago
Which statement correctly describes the diagram? A The products of photosynthesis cannot be used by other organisms. B The products of respiration can be used by plants for photosynthesis. C The exchange of oxygen and carbon dioxide occurs only in respiration. D The exchange of oxygen and carbon dioxide occurs only in photosynthesis.
Algebra
10 months ago
Which statement correctly describes the electrons in a water molecule
Algebra
10 months ago
Which statement correctly describes the phosphate ion, PO3/-4? It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.
Algebra
10 months ago
Which statement correctly describes the relationship between reactant and yield? The actual yield is calculated from the amount of the excess reactant present. The actual yield is calculated from the amount of the limiting reactant present. The theoretical yield is calculated from the amount of the excess reactant present. The theoretical yield is calculated from the amount of the limiting reactant present.
Algebra
10 months ago
Which statement correctly describes whether a compound is a pure substance? A compound is not a pure substance because each of its molecules is made up of the atoms of two or more different elements. A compound is a pure substance because its molecule cannot be ken down into simpler particles by physical means. A compound is not a pure substance because it is not an element, and only elements are pure substances. A compound is a pure substance because it consists of two different elements, which are pure substances.
Algebra
10 months ago
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