Which of the following is an organic molecule?a. CO2 c. H2Ob. O2 d. C6H12O6

Q: Compared with 31P, the radioactive isotope 32P has(A) a different atomic number.(B) one more…

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Q: Stanley Miller and Harold Urey performed an experiment by recreating in the laboratory the probable…

A: Since you have posted a question with multiple sub-parts, we solve the first sub-part for you. To…

Q: Generally YAC contains how many elements?a) 1b) 2c) 3d) 4

A: YAC stands for yeast artificial chromosomes and is widely used in the field of genetic engineering.…

Q: Which sample contains the greatest Number of Molecules ? [H=1 , c=12 ,O=16]  4 gm Hydrogen  18 gm of…

A: A molecule can be defined as the group of two or more atoms. Some of the most common examples are…

Q: Which of the following is "unfixed" carbon? O N2 (atmospheric nitrogen) O CO2 (carbon dioxide) O…

A: Introduction :- Biological carbon fixation, also known as carbon assimilation, is the process by…

Q: Which statement is true of all atoms that are anions?(A) The atom has more electrons than…

A: An atom is composed of three major particles. They are proton, neutron and electron. Protons are…

Q: Explain why two atoms of hydrogen tend to combine into a molecule of hydrogen gas (H2).

A: The fact that hydrogen exists as dihydrogen, H2, instead of H indicates that the mixture of 2…

Q: Methane CH4 + 202 → CO2 + 2H2O Propane C3H3 + 502 – 3CO2 + 4H2O Decane C10 H22 + 15.502 10CO2 +…

A: The complete combustion of hydrocarbons produce Carbon Dioxide and water where in absence of proper…

Q: The most abundant element by weight in the human body is   a. carbon. b. hydrogen. c. oxygen.d.…

A: Human body requires nutrients to provide nourishment essential for the maintenance of life and for…

Q: Isotopes differ in theira. number of protons.b. atomic number.c. number of neutrons.d. number of…

A: Isotopes are called atoms of the same element, which vary in their neutron numbers. Most isotopes…

Q: (3) A Celsius thermometer indicates a temperature of -40 °C. (a) What Fahrenheit and Kelvin…

A: 3  A Celsius temperature + 273.15. Your answer will be in Kelvin To convert temperatures in degrees…

Q: Why do animals need to remove CO2 from their bodies?

A: CO2 is produced after cellular respiration in the body. It is then transported across bodily fluids…

Q: What is fuels

A: Fuels are materials that can be either solid, liquid, or gas. There are many types of fuels that can…

Q: Gamma rays and X-rays are effective in killing microorganisms because they: a. damage DNA b.…

A: Answer:- b. dislodge electrons from atoms, creating ions.

Q: How do you know scientifically that fat and soap are different substances ?

A: Fats and oils consist of triglycerides. Triglycerides are made up of glycerol and three fatty acids.…

Q: Which of the following accurately describes the number of aluminum and oxygen atoms in Al203? A 3…

A: Al2O3 is an aluminum oxide that is a white odorless crystalline powder.

Q: Name an enzyme that acts on each molecule.(a) Amylose (b) Peroxide (c) DNA

A: Enzymes are proteins that acts as biological catalyst and accelerate the biochemical reactions by…

Q: The atomic number gives thea. number of neutrons in the nucleus.b. number of protons in the…

A: An atom is defined as the smallest particle of an element. They constitute of neutrons, protons and…

Q: Concerning antioxidants, which one of the following statements is true? a. free radicals, reduce…

A: A free radical is characterized as a molecule that contains at least one unpaired electron and is…

Q: Mobile phase can be :  A) Solid or liquid B) Only solid C) Only gas D) Liquid or gas

A: Chromatography is a technique that is used to separate different components of a mixture as a result…

Q: Pls help ASAP.

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Q: what is the number of molecules in 1.00 mole of CO2 molecules?  a) 6.022 x 10-23 b) 6.02 x 1023…

A: The mole is the unit of measurement for amount of substance in International System of Units (SI).

Q: Which of the following steps does not occur when the first oxygen molecule binds to HB? a) Heme…

A: Hemoglobin: Hemoglobin is a respiratory pigment found in red blood cells. It is a conjugated…

Q: Animals breathe in oxygen. What is this atmospheric oxygen used for in the human body? (Give the…

A: The process of breathing, i.e. the inhalation of oxygen and the exhalation of carbon dioxide, is…

Q: Which of the following is the only option that does not have atoms? O carbon dioxide O organic…

A: Atom is the smallest unit of matter that form a chemical element and they are present in every…

Q: Which equation represents a chemical reaction that obeys the law of conservation of matter? O…

A: Mass cannot be produced nor be destroyed, it can be converted So the reaction in which equal number…

Q: Energy is __________ when methane (CH4) is converted to CO2 because ___________. a) Released;…

A: Methan is produce from cattle farmcrop field. naturally it is used to Produce  and it is a renewable…

Q: A metal ion with a 2+ charge has 23 electrons and forms a compound with a halogen ion that contains…

A: As we know that atomic mass is the addition of proton and neutrons present in the nucleus, whereas…

Q: Oxygen has 8 protons, 8 neutrons, and 8 electrons. What is its atomic mass?(a) 8 (b) 16 (c) 24 (d)…

A: In the atmosphere, different elements, atoms, molecules are present like nitrogen, hydrogen, carbon,…

Q: Compound X has the above properties. Compound X is   a. C2H5OH b. C2H5Cl c. C2H5COOCH3 d. C2H6

A: Asked : Correct option which is compound X

Q: Which has more electron energy? CH1206 or 6CO2

A: Redox reactions are involved in cellular respiration. In a redox reaction, the molecule that loses…

Q: Which of the following statements IS true? (Choose only 1 answer) a) The pH value of lungs is lower…

A: Lungs are the respiratory organs which receive oxygen from the environment and supply the oxygen to…

Q: The movement of gases across membranes in the lungs is Select one: a passive process caused by…

A: In a process called diffusion, oxygen moves from the alveoli to the blood through the capillaries…

Q: What is an organic molecule? A.) A molecule that contains both carbon and hydrogen. B.) A molecule…

A: The organic compounds include a variety of solid, liquid, and gaseous molecules that consist of one…

Q: A molecule of water is formed when one atom of oxygen is covalently bonded with two atoms of…

A: Covalent bonds are formed by sharing of electrons. In the water molecule, there are two covalent…

Q: 53. A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27…

A: a. Oxygen

Q: Ammonia gas would be classified as (1) a compound (2) a mixture (3) an element (4) an atom

A: AMMONIA GAS IS CLASSIFIED AS COMPOUND.

Q: How many carbon (C) atoms are in C6 H14 N4 02? A. 4 B. 6 C. 14 D. 2

A: Since we know that carbon atoms tend to make four bonds, each carbon atom will have the number of…

Q: The oxygen liberated into the air for all life to use originates from molecules of Select one: a.…

A: Plants and other living things employ a process called photosynthesis to transform light energy into…

Q: which of the following characterizes the most abundant substance in the human body?  a,serves as a…

A: The most abundant substance in the human body is water. A human body is composed of average 60-65%…

Q: You have two beakers. One contains pure water, the other contains pure methanol (wood alcohol). The…

A: The solubility of a salt in water depends on lattice energy and hydration energy. When lattice…

Q: A chemist reported that carbon dioxide gas at −78 °C was kept in the laboratory. Which property of…

A: Gas is one of the forms of water. It has several properties such as expansion, easy to be…

Q: A molecule that donates electrons becomes____ , and the one that accepts the electrons becomes_____…

A: Redox reaction consist oxidation and reduction reaction. Photosynthesis is an excellent example of…

Q: The enzymes catalase combine two hydrogen peroxide molecules(H20+H2O) to make two molecules of water…

A: An enzyme is a protein which catalyses a reaction without taking part in it and can be recovered at…

Q: 3. High energy radiation ejects the electrons in an atom causing free radicals. Which are examples…

A: High energy radiations are part of the spectrum with high frequency, low wavelength and high energy.…