7. Which two metals do magnets attract or repel? a. Gold and silver b. Platinum and titanium c. Iron and steel d. None of the above

Q: 8. Most elements on the periodic table at 25°C and 1 atm are (choose all that apply) a. conductors…

A: All the chemical elements of the periodic table can be broadly divided into three categories,…

Q: 13. Copper atoms and zinc atoms have the same atomic radius, 135 pm. Based on this information,…

A: Atomic radius is defined as the total distance present from the nucleus of an atom to the outermost…

Q: copper and other minerals, what imaging technique

A: Ans. EPMA is electron probe microanalysis or also known as wavelength-dispersive electron microprobe…

Q: Which statement is an example of the Pauli Exclusion Principle? a. Atoms with a full octet shell…

A: Octet rule says atoms with full octet shell have more stability and not the Pauli Exclusion…

Q: Doing the flame test is important in chemistry because of the following reasons EXCEPT this    a. it…

A: Doing the flame test is important in chemistry because of the following reasons EXCEPT this :

Q: Which process in the diagram below shows fluorescence?     A. 4   B. 1   C. 5   D. 3

A: A diagram that depicts the electronic transition of a molecule and also transitions between them.…

Q: What is the Pauli Exclusion Principle? * a. An atomic orbital can only hold a maximum of 2…

A: Pauli's Exclusion Principle states that an atomic orbital can only hold a maximum of 2 electrons,…

Q: By dissolving .... ...in water, colored solutions are formed a- NiCl, and FeCl3 b- NaCl and COCI, c-…

A: Given statement is :  By dissolving ...............in water, colored solutions are frmed.  a). NiCl2…

Q: 40.749 1.SIX 26.98zytmot x 10- moles of leacl %3D c.8.75 28.75x10 mot ¥207.299/mor Imass 18.13g…

A:

Q: Which technique separates components of amixture based on the size of its particles? A. filtration…

A: The technique which separates components of mixture based on particle size has to be given.

Q: There are 17 Rare Earth Elements. Pick any 5 of them, and for EACH of the 5, explain in detail why…

A: Rare earth elements are a group of seventeen chemical elements that occur together in the periodic…

Q: All metallic elements are solid at room temperature except _________. A. sodium B. calcium C.…

A: At room temperature, mercury is not at solid state. Mercury is  liquid above 0°C Temperature This is…

Q: W̲h̲y̲ ̲a̲r̲e̲ ̲s̲o̲m̲e̲ ̲m̲a̲t̲e̲r̲i̲a̲l̲s̲ ̲c̲o̲l̲o̲r̲e̲d̲ ̲a̲n̲d̲ ̲o̲t̲h̲e̲r̲s̲ ̲a̲r̲e̲ ̲n̲o̲t̲?̲…

A: Materials appear different colours because they absorb some colours of definite wavelength and…

Q: ron 54 Chemistry/Cor cans used for canning food are usually coated with tin instead of zinc. This is…

A:

Q: Which of the following electromagnetic waves is used to probe the crystalline sctructure of matter?…

A:

Q: Predict and mark all the peaks. and give some info about it.

A: IR spectroscopy is a technique which is used to determine the actual structure of a compound. It…

Q: 17 What is the charge on the Titanium atom in the compound Ti3N4 ? A. 2+ B. 3+ C. 4+ D. 6+ 18 What…

A: Atoms are made up of protons,neutrons and electrons. Protons are positively charged particles.…

Q: The Group on the Periodic Table that BEST demonstrates the concept that elements in the same Group…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: Magnesium reacts explosively with oxygen to form magnesium oxide. Which is NOT true of this…

A: The incorrect statement among the given has to be given,

Q: Prussian blue makes your shirt whiter, why?  a. It bleaches b. It reflects blue wavelength of…

A: Introduction: Prussian blue or Berlin blue or Paris blue is produced by oxidation of ferrous…

Q: 5. A student tests an unknown substance that she believes to be a metal. Which of the following…

A: Metals are usually crystalline solids. In most cases, they have a relatively simple crystal…

Q: Which of the following is atransition metal? A. Barium B. Mercury C.     Cesium   D. Aluminium

A: A transition metal is defined as an element whose atom has a partly filled d sub-shell, or which can…

Q: a. Write the complete Electron Configuration for Iron b. Draw the complete Orbital Diagram for Iron…

A: Atomic number of iron is equals to 26. According to this configuration let us proceed to the…

Q: BOW manvOLneoiowing willlomanatetite somion lW

A: Acidic solutions tells about those have higher concentration of hydrogen ions than water. Among NH 4…

Q: Which of the following statements describe phosphorescence?     A. the emission of a photon during…

A:

Q: Transition metals within a period differ mainly in the number of electrons. a. s b. p c. d d. f…

A: Transition elements are also known as transition metals. Transition elements are elements that have…

Q: 1. Those features or characteristics of metal that make it useful and distinctive from all others.…

A: A metal is a material that shows a lustrous appearance when polished and is a good conductor of heat…

Q: This are substances that absorbs short wavelength light (ultraviolet range) and then reemit the…

A: Acid is a species which can donate proton and base is a species which can accept a proton.…

Q: Choose the block of the periodic table where astatine is located. a. The s-block b. The p-block c.…

A: Given; Element - Astatine Block of the given element (Astatine) = ? Note: s-block : include elements…

Q: What elements make up 99% of muscle in living organisms? * A. Carbon, Sulfur, Oxygen, and Hydrogen…

A: Muscles of a living organism contain proteins that are made of amino acids and blood that is mainly…

Q: 23 A student tests the properties of an element and finds that it is malleable, shiny, and conducts…

A: The metals are hard, can be beaten into sheets, can be drawn into wires, shiny, sonorous, etc. A…