State the number of atoms for each of the following metals. (a) 63.55 g Cu (b) 40.08 g Ca

Q: A blanket of air, made up of gases, liquids, and some solid matter, is called the

A: Atmosphere is the blanket of air around the earth which is beneficial for human being. Gases…

Q: what the word mean A number written after an element’s symbol in a chemical formula

A: When a molecule is formed by joining two or more atoms together, a chemical formula is shown to show…

Q: Type in the name of the polyatomic shown

A:

Q: Which physical state has particles with the most movement?

A: Physical states: One of physical condition of states in which matter exists is called as states.…

Q: ne number of atoms

A:

Q: Difference between minor and major constituent

A: A question based on solution that is to be accomplished.

Q: 6. The question is shown in the image attached.

A: Option --C

Q: b. silver nitrate and ammonium chromate c. copper(II) sulfate and calcium nitrate d. strontium…

A: First write down the reactants and products formed in this reaction along with their phases and then…

Q: Which term listed is a property of a non-metal?  high density brittle shiny  conducts electricity

A:

Q: Which common inexpensive metal was more valuable than gold in the nineteenth century?

A: Solution:       Aluminum is considered as the third most abundant element in the earth crust after…

Q: For the following molecule: The number of a hydrogen is (Please use numerals)

A: In organic chemistry, carbonyl compounds play an important role. Carbonyl compounds consist carbonyl…

Q: Write the symbol for one atom of zinc, magnesium, iron, and copper

A: Symbol for one atom of zinc is - Zn Symbol for one atom of magnesium is - Mg

Q: A student used the Procedure of this experiment to determine the formula for an oxide of tin (Sn).…

A:

Q: All of the following are characteristics of metals except.

A: Malleable means they are hammered into thin sheets. Ductility means they can be drawn into thin…

Q: Question 2 Which of the following has a estimated pl 11? a) HEAD O b) CAKE BAKH

A: Each amino acid has two groups: Amino and Carboxylic acid. Many amino acids can have other group…

Q: Provide the elemental symbol of the  following elements: gold, potassium, mercury, iron, platinum,…

A: An elemental symbol is a one or two-letter abbreviation for the element. If the symbol consist of…

Q: Suggest how the components of each mixture can be separated. a. Salt and Sulfur b. Copper and Zinc

A: Solution The mixture of salt and sulphur is a mixture of heterogeneous mixture.They can be seperated…

Q: the atoms of elements or molecules of compounds when a chemical change occurs and when a physical…

A: Chemical reaction and chemical change: A chemical reaction bonds between atoms are broken and new…

Q: molecular diagram represents a pure substance or a mixture. If it represents a pure substance,…

A: The given molecular diagram is a representation of the carbon compounds in the Ball and sticks…

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

A: Al2O3 is named as Alumina. It is a compound of aluminium.

Q: Which is an example of fuel that takes the shape of container and has definite volume?

A: The fuel that takes the shape of container and has definite volume, it should be in liquid phase.

Q: is aspirin a ionic or molecular compound?

A: Formula of aspirin is given by, C9H8O4

Q: Determine the Factor of the following compounds c. Potash

A: For salts:  n factor = total positive charge of Cation or total negetive charge of Anion Potash Alum…

Q: mass

A:

Q: Answer the ff: Physical Properties Chemical Properties Examples Formula

A: According to the question, we need to fill in the table regarding the physical, chemical properties…

Q: 5. Hydrogen chloride is decomposed by an electric current to hydrogen (H2) and chlorine (Cl2). Is…

A: The solution is given below -

Q: Which of the following best describes the system depicted in the diagram? Mixture of elements…

A: We have to say about the diagram.

Q: 1. How many hydrogen atoms are in the compound (NH.).CO,?

A: This question belong to mole concept in physical chemistry. We have solved the problem by unitary…

Q: If the same amount of electricity that is used to produce 500g copper metal is used to produce…

A: Number of moles can be determined by dividing the given mass of the atom or molecule by the molar…

Q: What is the molecular (formula) mass for ZnSO4 (Zinc sulfate), to three significant digits.

A: What is the molecular (formula) mass for ZnSO4 (Zinc sulfate), to three significant digits.

Q: Which of the following properties of copper are chemical properties? Check all that apply. > View…

A: The physical property of copper is measured without doing a chemical reaction or chemical change and…

Q: Which of the following is an element: Brass Zinc Steel             D, Bronze

A: An element is the simplest form of pure substance. On the other hand, a mixture is made up of…

Q: Each scene below represents a mixture. Describe each one interms of the number(s) of elements and/or…

A:

Q: What block of periodic table is copper and nickel in?

A: PERIODIC TABLE - it is defined as  " the arrangement of the known elements according to their…

Q: Refer to the diagram below. Key projectile A projectile B projectile C Which projectile was launched…

A: Hence option C is correct that is projectile C.

Q: uantum number

A:

Q: Question As the nylon thread is pulled out of liquids in the beaker,the measured mass of the liquids…

A: Nylon has a polar structure, so it absorbs the liquid molecules.

Q: Is helium metal nonmetal or metal loud

A: Helium is non - metal

Q: how many hydrogen enviornments are there for each of the molecules?

A:

Q: OF2 expressed as an Integer?

A: The number of electron groups can be determined by the summation of bond pair and summation of lone…

Q: Question attached

A: Homogenous mixture:- the mixture which has uniform composition through out the mixture is known as…

Q: Calculate the number of sodium ions, perchlorate ions, Cl atoms and O atoms in 87.9 g of sodium…

A:

Q: A _____ is something that has a definite composition.

A: The study of the composition, structure and characteristics of matter; the processes which matter is…

Q: Classify each item as element or compound : gas in a hellium balloon, table sugar,the rust on an…

A: Primarily matter is separated into two main categories which are pure substances and mixtures.An…

Q: The explosion during fireworks is a chemical change. Select one: True False

A: The given statement is : The explosion during fireworks are chemical change.

Q: , which among GaAs, LiBr, C, and Li will be the greatest conductor

A: Substance which has more number of ions have more electrical conductivity.  So, strong electrolytes…

Q: Identify the following statements as true or false.

A: Statement 1- A 2.0 % NaCl solution has a higher vapor pressure than pure water. when a non-volatile…

Q: de the correct IUPAC name for the pound shown here.

A:

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.