What is a proton? A. A negatively charged particle B. A positively charged particle C. An element on the periodic table D. Any particle found in the nucleus

Q: Transition metals play several roles in biological processes and in medicine. Why does biology…

A: Transition metal:It can be defined as chemical elements that possess a valence electron. Valence…

Q: Assume that the mixture of substances in drawing (a) undergoes a reaction. Which of the drawings…

A: The law of conservation of mass states the mass in an isolated system is neither created nor…

Q: An atomic nucleus can be described by the analogy “like a marble in the Dallas Cowboys Stadium.” If…

A: Atoms are made up of particles called protons, neutrons, and electrons which are responsible for…

Q: What are the two types of chemical reactions

A: Two types of chemical reactions 1) Combination reaction 2) Decomposition reaction

Q: Which of the following items are pure elements—that is, made up of only one type of atom? Check all…

A: Our Earth is a planet that has abundant minerals. These minerals were formed as a result of the…

Q: The property that distinguishes an atom of one element (carbon, for example) from an atom of another…

A: An atom is made up of certain subatomic particles including protons, electrons, and neutrons. The…

Q: number of protons to number of neutrons ratio in

A: Every element in the universe has a proton, neutron, and electron. The number of protons is similar…

Q: What is activation energy? a. The thermal energy associated with random movements of molecules…

A: Activation energy is the energy required to activate atoms during a reaction.  Lower activation…

Q: When reacted, how does the use of potassium (K+) vs sodium (Na+) change the soap product?

A: Saponification is a biochemical process which deals with the conversion of  oil, lipid, and fats…

Q: a) What type of molecule is this? b) How do you know? c) Describe the variety of larger molecules…

A: Molecules are of various types. They can be organic or inorganic.

Q: With the exception of He, elements with two valence electrons will be considered: O Metals…

A: A valence electron is an electron that is associated with an atom, and that can participate in the…

Q: Draw a shell model of a lithium atom (Li), which has three protons, then predict whether the…

A: An electron shell is an outside portion of the atom (outside of the nucleus) which has the highest…

Q: The role of mg2+ in some of the reactions is to help stabilize negative charges on

A: Mg2+: It is used as essential co-factors in various biological activities. It controls the…

Q: Which of the following levels in the shell model of an atom can hold up to two electrons?   A. The…

A: The model of the shell is partially similar to the model of the atomic shell that defines the…

Q: The atomic number on the periodic table tells us how many are in the atom. * O protons O neutrons O…

A: All biomolecules are made us of the basic chemical elements that why Biology and chemistry go hand…

Q: What element does not react with other elements? Group of answer choices A. hydrogen B. helium C.…

A: Noble gases These are group 18 elements of the periodic table. They are usually chemically inert.…

Q: Arrange in order of increasing atomic size. (a) the period 2 elements Li, C, and F (b) the group…

A: According to the question, we have to arrange the following period or group elements in order of…

Q: Which is not a property of water? a. Low specific heat b. Hydrogen bonds form a lattice c.…

A: Water is a tasteless, colorless, odorless liquid, made up of two atoms of Hydrogen and one atom of…

Q: Select the best answer or answers from the choices given: The mass number of an atom is (a) equal to…

A: The mass number of an atom is:

Q: Lecithin is a.a carbohydrate. b.a protein. c.a steroid. d.a phospholipid.

A: Lecithin is a fat It is essential in the cells of the body. soybeans and egg yolks are the sources…

Q: Which of the following elements would you expect to form (i) diatomic molecules, (ii) mainly…

A: (a) Oxygen exists as O2 in its elemental form. So, it is diatomic molecule. Its electro negativity…

Q: In general, electrons far from the nucleus have more potential (chemical) energy than electrons…

A: The lowest energy would be in electrons nearest to the nucleus. Higher energy will be provided to…

Q: If we removed a neutron from an atom, what would happen to the atom? Group of answer choices: a) its…

A: Atoms are the smallest unit of any matter in the universe. The electron revolves around the atoms in…

Q: reducing chemical reaction ________.   a. removes a hydrogen atom from the substrate   b. adds…

A: A reducing chemical reaction is adding an electron to the substrate

Q: Do a web search to identify each of the following elements>isotopes and indicate the number of…

A: Atoms are the small particles that contain three main types of subatomic particles.

Q: Does biochemistry differ from organic chemistry? Explain your answer.

A: Biochemistry is the branch of biology which deals with chemical process which occurs in the living…

Q: stance which cannot be broken down by chemical means into simpler substa OA. Matter OB. A Mineral…

A: The periodic table is a display of all the discovered chemical elements in the form of a table for…

Q: A Determine how much sodium and similar elements are normally found in the human booy B. Determine…

A: Asked : Reason for element are safe for humans to consume from given options.

Q: In the periodic table, the elements are arrangedaccording to ________ .a. size c. mass numberb.…

A: A periodic table is a tabular table. It displays all the chemical elements in this table. Over time…

Q: Look up the valence electron configuration, covalent atomic radius, effective nuclear charge, first…

A: The valence shell electronic configuration of the p-block elements is ns2np1–6, and they are found…

Q: Select the correct answer. Electrons, protons, and neutrons are three subatomic particles of an…

A: Step 1 The organization is a systematic arrangement of smaller and simpler components into larger…

Q: Fluorine has an atomic number of 9. Which of the following is true of fluorine? D A. It will lose an…

A: It will gain an electron to become an anion. Cations are positively charged species. Anions are…

Q: Fill in this table regarding the parts of an atom. Particle Charge Function in Atom How does the…

A: Atom is the smallest unit of matter. Solid, liquid, gas, and plasma are different forms of matter…

Q: Silver (Ag) atoms contain fewer electrons, neutrons and protons than Gold (Au) atoms. To change…

A: Answer:Turning silver into gold requires the addition of more protons into the nucleus of the atom.…

Q: Atomic absorption spectroscopy is usually more sensitive than atomic emission spectroscopy because…

A: In case of Atomic Emission Spectroscopy (AES), when energy is absorbed by electrons, the electrons…

Q: What is the pH of a solution that has a higher concentration of H+ ions than water?   A. > 7   B. 7…

A: The pH of the solution is described with respect to the concentration of hydrogen ions in the…

Q: Which of the following statements is incorrect? a. Isotopes have the same atomic number and…

A: Every chemical has more then 1 isotope. Atmos is the smallest unit of a chemical compound. Electrons…

Q: Consider an electron transition from n = 3 to the n = 2 energy level in a hydrogen atom resulting in…

A: The electrons of hydrogen atoms revolve around their nucleus. They occur as a set of electrons with…

Q: Given a set of quantum numbers, determine whether each is permitted for an orbital in an atom (a) n…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Atoms A and B interact to form a compound, AB2. When measured, atom A has a partial negative charge…

A: The more electronegative atom has a partial negative charge because the electrons spend more time…

Q: If a model of a hydrogen atom had a diameter of 45 cm, what would have to be the diameter of the…

A: Introduction - Hydrogen atom or its model is made up of a centrally placed nucleus or in this case…

Q: Alchemists were medieval scholars and philosophers who were the forerunners of modern-day chemists.…

A: The atomic number of lead is 82 while the atomic number of gold is 79. Alchemists tried to somehow…

Q: What is the purpose of subscripts in chemical formulas? So the chemist can multiply the chemical…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which bond in a polypeptide backbone does not freely rotate? a. The bond between CO and NH b. The…

A: The polypeptide chain consists of amino acids that are linked by a peptide bond where the carboxyl…

Q: the structure of a soap molecule, use the concept of intermolecular forces to explain why we use…

A: Soap molecules has hydrophilic head and a hydrophobic tail, they are composed of long chains of…

Q: Draw and label a simplified model of an atom. Explain how this model misrepresents our understanding…

A: An atom is the smallest component of an element present everywhere in the universe. It is made up of…

Q: What is an alloy? A. A compound of two metals B. An element of two metals C. A mixture of two metals…

A: Answer-  C. A mixture of two metals.

Q: Which element is a metal? A. C B. Rn C. CI D. Cr

A: The classification of chemicals into different groups and understanding their properties individual…

Q: Knowing the atomic mass of an element allows inferences about which of the following?

A: Atom is the smallest or basic unit of matter and was discovered by sir John Dalton in 1808  Charge…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.