Oe 2. An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom's nucleus? +25 +30 -25 -30 CLEAR ALL

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

A:

Q: 8. If an atom has 35 protons in the nucleus, how many electrons will it have orbiting the nucleus?…

A: Answer-  8=  35 electrons                  9=   5 atomic number                10=  11 mass number…

Q: 1. Create the following combinations of protons, neutrons, and electrons.1p, 1n, 1e a) What element…

A: a. The element with 1 proton, 1 neutron, and 1 electron is Deuterium. Deuterium is a stable isotope…

Q: An ion has 15 protons, 16 neutrons, and 18 electrons. The symbol for the ion is 31P3+. 31P3-.…

A: An atomic number of an element is identified by the number of protons present in its atoms. The…

Q: 1. Explain why lipids are insoluble in polar solvents.

A: Introduction:- A lipid is a macro biomolecule or any of various organic compounds that are insoluble…

Q: How many valence electrons does calcium (Ca) have? * O 20 4. 2. This is a required question Most of…

A: How many valence electrons does calcium have? Answer ) two .

Q: The atomic number of potassium (K) is 19 and the mass number is 39. How many neutrons does potassium…

A: Atomic number is defined as the number of protons in the nucleus of an atom . Mass number is defined…

Q: 7. Give the symbol of and the number of protons in one atom of: Lithium Iron Охygen Krypton Bromine…

A: Symbols and number of protons in one atom are as below : Lithium - Li - 3 Iron - Fe - 26 Oxygen - O…

Q: What about Hydrogen? Since Hydrogen (H) has one proton, it only has one electron. That means that…

A: Hydrogen in a unique element because of the presence of only single electron in its valence shell.

Q: Carbon (C) has approximately the same electronegativity as hydrogen (H). Which of he following is a…

A: Methane was discovered and isolated during 1776 by a scientist named Alessandro Volta during his…

Q: 18) Carbon-14 has the same A) atomic number and atomic mass as carbon-12 B) atomic number and thus…

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

Q: 1- The electron geometry of carbon dioxide is . . 2- The bond angle of methane with tetrahedral…

A: 1. The electron geometry of carbon dioxide is Linear Explanation: Carbon dioxide has two electron…

Q: 11H and 13H have (a) different chemical properties because they have different atomic numbers (b)…

A: The chemical properties of an element are not defined by the number of protons. Protons are…

Q: Modifying Theories Three of the many models of the atom are shown above. Describe some of the ways…

A: Atomic theory helps in understanding how atoms has changed over time. It is used in field of…

Q: 16) An ion with six protons, seven neutrons, and a charge of 2+ has an atomic number of A) four B)…

A: Physical as well as chemical properties of an element depend upon its atomic structure, the number…

Q: 11. The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement…

A: Element is defined as a pure substance which comprises of only of atoms that possess all the same…

Q: 48 answer all please find the connection among the words below and choose the letter of the word…

A: Methylene blue is a blue stain that binds to DNA and helps to visualise DNA in gel electrophoresis…

Q: Monomer 1 Monomer 2 ОН НО- Monomers linked by covalent bond H,0 Monomer 1 Monomer 2 Monomers linked…

A: Biological macromolecules are crucial cellular components that execute a variety of functions that…

Q: Why are atomic masses not whole numbers? For example, why is 35.45 and not 35 or 36?

A: The atomic mass is the mass of an atom that is denoted in Kilograms or dalton. Isotopes are the…

Q: Carbon has several isotopes including 12C and 14C. These isotopes differ in the number of: O a.…

A: When two or more atoms of same element have the same atomic number (number of protons or number of…

Q: Q/Choose the correct answer 1-When a radioactive nuclide emits a beta particle, its * A-mass number…

A: The radioactive emission it gives 3 kinds of it releases three kinds of emission alpha, beta, and…

Q: 9. Draw the Electron Structure for Rb & O 10. Draw the Electron Structure for Sr & F Formula Unit:…

A:

Q: What atom has only one proton?a. hydrogen   d. a free radicalb. an isotope  e. a radioisotopec.…

A: Proton is the positivity charged particle found in the nucleus of atom,it is small in structure with…

Q: A glycosidic bond between two monosaccharides can also be classified as a(n) ________

A: Monosaccharides are the basic sugar unit of carbohydrates compounds. Monosaccharides which cannot be…

Q: 5. Which functional group is not found in naturally occurring monosaccharides? A. alcohol B.…

A: Monosaccharides are simple carbohydrates, these are colorless, crystalline solids which are freely…

Q: #of Protons Group Hof Valence Ion that Will Form Element Oxidation Number Electrons Lithium #3 #3 23…

A: Cations are ions with positive charge while anions are the one with negative charge. Generally…

Q: 9. Which of the following changes to a chemical reaction will make it go faster? Select all that…

A: Biochemical reaction depends on many parameter. Many aspects increase or decrease the biochemical…

Q: An isotope of sodium (Na) has a mass number of 22. How many neutrons does it have?a. 11b. 12c. 22d.…

A: Isotopes are members of a family of an element that all have the same number of protons but…

Q: 7. If the concentration of Mg in water is 36.6mg/L, what is the hardness of the water as mg/L CACO3?…

A: Hardness of water is defined as amount of dissolved calcium and magnesium in the water. the degree…

Q: 1 WHAT IS A CATALYST

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

Q: Sort the subatomic particles according to their masses. Drag each subatomic particle into the…

A: Neutron is a subatomic particle that has no charge and has a mass slightly greater than the proton.…

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…

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Q: 1- Water molecules when reduced at the cathode they produce.... (oxygen atoms, hydroxyl ions,…

A: As there are multiple questions, 1st is electrolysis part in which water is broken down by…

Q: 3. Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has…

A: Fatty acids are the hydrocarbon chains with the carboxylic group. The hydrocarbon chains of fatty…

Q: Fill in the blanks. The parentheses are the choices for the blanks. A water-requiring chemical…

A: A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of…

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A: Concentration of carbohydrate in a solution is the moles of carbohydrate present in a specified…

Q: ability of impurities to lower the melting point of a sample

A: Inside a liquid, solid, or gaseous substance chemical substances that are different from the…

Q: 9. Añ ester is treated with aqueous acid. What is this reaction called? OA Esterification O B. Acid…

A: Esters are neutral, class of organic compounds that react with water and produces alcohols and…

Q: Choose the correct answer 1-An important result of Rutherford’s work was to establish that... *…

A: The gold-foil experiment revealed that the atom is made up of a thin, large, positively charged…

Q: 3 True ör 4. True or False. Are used to give the an organic molecule unique chemical behavion True…

A: Functional groups are a specific group of elements that provides a compound unique physical and…

Q: 1. a. What is the abbreviated name for the molecule below? (3 letters) What is the abbreviated name…

A: NOTE: since you have posted multiple questions with multiple subparts, So we will be solving the…

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: Element Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons…

A: The periodic table consists of all the elements that are arranged on the basis of atomic number. The…

Q: 2. By what type of solution can you categorize a solution whose concentration or strength has been…

A: Introduction: Titration is an analytical procedure in which a standard solution is used to find the…

Q: 8. The atomic number of Nitrogen is 7 and its atomic weight (mass) is 14. How many covalent bonds…

A: A chemical bond or molecular bond in which pairs of electrons are shared between two atoms is…

Q: 12. What is the pH of a solution in which [OH-] = 0.000005 M7 1. 5.3 8.7 O 5 x10

A: pH and pOH are the two values that help to determine the strength of acid and base. pH refers to the…

Q: 9. An ester is treated with aqueous acid. What is this reaction called? A. Esterification B. Acid…

A: Esters are neutral, class of organic compounds that react with water and produces alcohols and…