Give the chemical symbol or name for the following elements,as appropriate: (a) sulfur, (b) gold, (c) potassium,(d) chlorine, (e) copper, (f) U, (g) Ni, (h) Na, (i) Al, (j) Si.

Q: The radius of a copper (Cu)atom is roughly 1.3 x 10 10 two separate copper atoms? (Assume there are…

A:

Q: Which of the following is a chemical property of Sodium?A.melts at 60°CB.soft solid C.density of…

A: Chemical property is a characteristic of a compound that can be observed after it undergoes in a…

Q: Classify the following as physical or chemical change: When a solution of concentrated HCl(aq) is…

A: For question 3, we have to find the whether the addition of concentrated HCl(aq) to water is a…

Q: Which of the statements describes a chemical property? Helium is the lightest monatomic element.…

A:

Q: Give the names of the elements represented by the chemical symbols Li, F, P, Cu, As, Zn, Cl, Pt, Mg,…

A: Chemical elements are defined as chemical species that contain only one type of atoms. Elements are…

Q: Give the chemical symbols for the following elements: (a) potassium, (b) tin, (c) chromium, (d)…

A: a K  b Sn  c Cr  d B  e Ba  f Pu

Q: the total mass of these atoms?

A:

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10 cm . What is…

A:

Q: Consider a 25.09 g cube of cadmium metal, an element which forms some of the most toxic salts known,…

A: The length of one side of cube = 1.45 cm

Q: The following is an example of a physical change: O formation of rust O production of energy by…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Which term best describes carbon dioxide, CO2? a. an atom b. an element C. a homogeneous mixture d.…

A: A chemical compound is a chemical substance composed of many identical molecules composed of atoms…

Q: The diameter of a DNA alpha helix is about 8 ✕ 10−8 in. What is its diameter in centimeters?

A: Given: Diameter of DNA α helix= 8×10-8 inWe need to find diameter in cm

Q: You want to determine the density of a compound but have only a tiny crystal, and it would be…

A: Given, volume of CHCl3 = 5.50 mL            density of CHCl3 = 1.492 g/mL            volume of CHBr3…

Q: Which of the following is a mixture? O cheese O calcium O sodium O water, H2C O hydrochloric acid,…

A: A mixture is a combination of two or more pure substances in which each pure substance retain its…

Q: Which of the following represents a chemical change? O mixing salt and sand O paper burning O…

A: Chemical change : a chemical change always results into one or more new substances i.e substances…

Q: A) Which term describes the conversion of substances into different substances? ionic bonding…

A: Conversion of one type of substances into other substances is take place through a reaction.

Q: Sound, light, feelings and ideas are not considered to be matter. Which of the following best…

A: Why sound , light, feelings and ideas are not considered to be matter?

Q: A combination of at least two materials, one of which is a metal whose properties are different from…

A: Alloy is the combination of  two metals or a metal and  non metals to form a new product with…

Q: Which of the following is a mixture?  Brass, carbon monoxide, sulfur dioxide or salt

A: A mixture is formed due to the physical combination of substances bounded together in a…

Q: 1.16 Give the chemical symbol or name for each of the followingelements, as appropriate: (a) carbon,…

A: Chemical symbol is the short notation given for an element.

Q: m. How many times can you divide evenly a 893.4 cm long piece of copper wire until it is reduced to…

A: Given : The radius of copper atom = 1.3×10-10 To find : Number of evenly cuts or number of times.…

Q: Give the chemical symbol or name for each of the followingelements, as appropriate: (a) carbon, (b)…

A: Chemical symbol is the short notation given for an element.

Q: is cutting a cake a physical or chemical reaction?

A: Physical change: a change after which nothing new is created and not old one is destroyed.

Q: O CHEMICAL REACTIONS Interconverting number of atoms and mass of compound Calculate the mass of…

A: The question is based on mole concept. We have  to calculate how much quantity of borane has given…

Q: Would you expect C3H7OH to be a solid, liquid or gas? Explain your logic. (the numbers above should…

A: Lower carbon alcohols that are alcohol with 1 to 3 carbon atoms are free-flowing liquids.  Alcohols…

Q: Which of the following is not an example of a chemical property and why? 1. An iron nail will rust…

A: Among the given processes, the process which is not an example of chemical property is, Sugar will…

Q: Which of the following describes a chemical property? a. The density of iron is 7.87 g/cm3b. A…

A: The chemical property has to be described.

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

A:

Q: A ______________________is the physical combining of two or more substances (not necessarily…

A:

Q: Suppose a teaspoon of magnesium filings and a teaspoon of powdered sulfur are placed together in a…

A:

Q: 1.15 Give the chemical symbol or name for the following elements,as appropriate: (a) sulfur, (b)…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: What are the chemical symbols of the following elements: lithium, sodium, carbon, oxygen, fluorine,…

A: Every element is represented by one letter or two letters from the Latin alphabet. If symbol is of…

Q: Which of the following is correct? Gold nanoparticles are non-metals Gold nanoparticles are metals…

A: To find: The correct statement

Q: Which of the following statements is FALSE? O The mass percentage of calcium in calcium phosphate is…

A: Answer - The False statement is (e) and (a) The mass percentage of calcium in calcium phosphate is…

Q: What is the mass (in kg) of 6.89 × 10^25 molecules of carbon dioxide?

A: Mass is a physical quantity which indicates the amount of matter present in a substance. Its units…

Q: If an electric car is capable of going 225 km on a singlecharge, how many charges will it need to…

A: Since 1 km = 0.621 miles The charges as the trip begin with a full charge is calculated as Since 1…

Q: A solid white substance A is heated strongly in the absence ofair. It decomposes to form a new white…

A: The chemical reaction taking place is,

Q: Question attached

A: Theory or Law, though both sounds similar, they are never synonymous. Theory: Suppose, take ‘Bing…

Q: hich of the following an example of physical property of silver (Ag)? 1.) silverware slowly…

A: physical properties of silver are:- white, lustrous, soft, very ductile, malleable,  excellent…

Q: About two centuries ago, Benjamin Franklin showed that 1 teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T), or T = V/A  Given: The volume is 5.0 cm3. The…

Q: 1. Calcium, an element, is a dull, gray solid that melts at 839°C. When it is placed in water,…

A: As per the rules, only the first question can be answered:

Q: Which of the following is an element? Fe,(SO,), Li O2

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

Q: 1) С,Н,О 2) С.Н.СЬ, 3) С.Н.О, 4) С,Н

A: Applying concept of functional groups isometric condition.

Q: A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is…

A: Given Information - mass of empty flask =  78.23 g  mass of flask filled with water = 593.63 g  mass…

Q: give the chemical symbol or name for the following elements, as appropriate 1 sulphur 2 gold 3…

A: Sulfur is a chemical element with atomic number 16. It is abundant, multivalent, and non-metallic.…

Q: Give two chief characteristics of (i) Elements, (ii) Compounds and (ii) Homogeneous Mixtures.

A: Element is pure in nature as it consists of only type of atoms. And, Compounds is comprised of…