1. In classical Physics and general Chemistry, matter is any substance that has mass and takes up space by having volume. Which of the following is the basic unit of matter? B. Compound A. Atom D. Molecule

Q: When water boils, what is being broken or overcome.  A. Inter molecular forces  b. Covalent bonds…

A: Boiling is the process by which a liquid, such as water, turns into a gas by heating it to its…

Q: 5)An element cannot A) be part of a heterogeneous mixture B) be part of a homogeneous mixture C) be…

A: Given An element cannot _____________

Q: TRUE OR FALSE 1. A heterogeneous mixture can be separated into pure substances, but a homogeneous…

A: Mixture  A mixture is the physical combination of two or more substances in which the identities are…

Q: A piece of weighing paper recorded a mass of 0.200 g. An object was placed on the weighing paper to…

A: Mass of object =10.900-0.200                               =10.700g

Q: 2.- Identify each of the following as a homogeneous or heterogeneous mixture. Explain your choice a

A:

Q: Determine the number of mercury atoms in 0.515 g of mercury.

A:

Q: 10:51 1 l LTE [cK-12 License 13. The atoms in the air are called. , and they are very a. noble…

A:

Q: classify to be solid, liquid or gas     Particles are close together but are not held rigidly…

A: To identify whether the given statement represents solid, liquid or gas.

Q: Describe, the structure of matter on the microscopic level.  Explain it to someone who's never heard…

A: Matter is anything that occupies space and possesses mass. Microscopic level is that level which…

Q: Identify the entities that will correctly complete the flow chart. Matter I. П. Compounds…

A: • we need to determine the L and IL in the given flow chart.

Q: Which pair of statements about mass is true? O A. After a physical change the total mass is the…

A: The pair of statements about mass is true has to be given,

Q: A compound is found to consist of 1.37g of iron and 2.62g of chlorine. What is the percent by mass…

A: Given that: mass of iron = 1.37 g mass of chlorine =  2.62 g  To find: the percent by mass of…

Q: The relative number of atoms of each element in a particular compound a. cannot be determined…

A: Concept is based on empirical formula.

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: law of conservation of mass

A: According to law of conservation of mass, in a chemical reaction the mass of reactions are always…

Q: CHE 180 General Chemistry I Homework Chapter 1, continued 10. Exercise 92: The properties of a…

A: Based on change in properties of a mixture of substances we can define it as a physical or chemical…

Q: 1. Describe the color of the mercury(II) oxide.   2. Describe what happens to the mercury(II) oxide…

A: Since third question is different than first two question. Here, we solve first 2 questions as they…

Q: During a physical change:    A. It undergoes physical state changes  B. There are no changes   C.…

A: Properties of physical change : when a substance undergoes physical change, its composition remains…

Q: Compare the amount of copper predicted in part A with the amount measured in part B. What percentage…

A: Predicted copper amount=0.9918 Actual amount of copper produced= 0.72

Q: Which of the following is a physical change?   a. Ice melting into liquid water   b. Sodium…

A: Physical changes are changes affecting the form of a chemical substance, but not its chemical…

Q: lodine exists as molecules of 12, and silicon dioxide exists as an extended network of…

A: which one have highest melting point and why

Q: 21. A 12.0 g sample of which of the following substances (same list as in the previous question)…

A: For a fixed mass, the liquid will have more volume as compared to the solid.  In solid the particles…

Q: Read the question carefully and encircle the letter of the correct answer. The following statement…

A: Chemical reactions produce new substance and particles are rearrange to form new substance . Matter…

Q: What is a molecular element?

A: A compound refers to the molecule which contains at least two different type of elements bonded…

Q: 62. List the energy conversions that occur in the process from the time water is about to enter a…

A: The law of conservation of energy states that energy can neither be created nor destroyed it can…

Q: 10. Use what you have just learned about chemical formulas to identify the following as element…

A: (a) Br2 -  It is an element, because it has only one type of constituent atoms of bromine. Here two…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.