Explain in your own words, by writing a short paragraph, how the atomic theory explains conservations of mass during a chemical reaction and during a physical change

Q: What is the difference between a law and a theory?

A: The difference between a law and a theory has to be given.

Q: Here are the four sketches os pure substances.each sketch is drawn as if a sample of rhe substance…

A: Given diagram is :  There are the four sketches of pure substances .each sketch is drawn as if a…

Q: IN YOUR OWN WORDS, DIFFERENTIATE COMPOUND, ATOMS, ELEMENTS AND MOLECULES. GIVE EXAMPLES FOR EACH.…

A: A particular atom will have the same number of protons and electrons and most atoms have at least as…

Q: What is being represented by the picture below? * a mixture of compounds being physically separated…

A: 1.) To determine the nature of change , we would see what type of substance are on left side and…

Q: 14. What is the definition of a physical property? What is the definition of a chemical property?

A: Most of the substances that we see around have certain characteristics and properties by which they…

Q: How to tell whether a property is physical or chemical

A: Physical properties are the properties such as colour, melting point,hardness,density and doesn't…

Q: Why do physical properties play a role in chemistry if they do not involve any chemical changes?

A: I

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: 20. A chemist decomposes several samples of water into hydro- gen and oxygen and measures the mass…

A: In the first set of data,water is decomposed to hydrogen and oxygen and the mass of each obtained…

Q: 1. Which substances have similar physical property? Explain your answer. 2. Which substances have…

A: The properties of a substance which can be observed without undergoing any change in the…

Q: IN 300 WORDS EXPLAIN AND DIFFERENTIATE COMPOUND, ATOMS, ELEMENTS AND MOLECULES. GIVE EXAMPLES FOR…

A: Given : Compounds, Atoms, Elements and molecules To find: Explain and differentiate properly…

Q: a) upon heating, a blue powder turned white and lost mass b) A white soil forms three different…

A: Given: For each of the changes have to decide whether two or more elements formed a compound or if a…

Q: Differentiate Mass and Weight. Can we use these terms interchangeably when measuring the mass of an…

A: 1  Mass and weight-      Mass is the quantity  of substance in it  and  always  constant,      can…

Q: The shattered glass case at the scene of a jewelry store robbery was determined to be made of potash…

A: Density of any substance can be defined as the ratio of the mass of the substance to its volume. It…

Q: a room contains 4.23 x 10^24 molecules of oxygen. what is the mass of oxygen in the room?

A: Number of mole of substance is calculated by dividing mass of substance (m) to molar mass (M) of it…

Q: Since the Geologists at Grasberg know the density of gold to be 19.32g/cm^3 they were surprised by…

A: Density is defined as mass per unit volume of the substance  . Metals have high density as compared…

Q: During a forest fire trees weighing thousands of kilograms are reduced to a few kilograms of ash.…

A: In the given question we have to explain the working of law of conservation of mass, Law of…

Q: The boiling of water is aa. physical change because the water disappears.physical change because the…

A: The boiling of water is a physical or chemical change. (a) physical change because the water…

Q: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

Q: Explain the difference between an element and a compound?

A: Elements refer to pure substances that are composed of only 1 type of atom. Compounds refer to…

Q: lentify the property involved in each item. You may choose from the box for your Directions: Below…

A: Dear student, this question is related to general properties.

Q: Explain the difference between a law and a theory?

A: Various ideas are formulated by the scientists and some are derived experimentally using various…

Q: After burning for three hours, a candle has lost half of its mass. Explain why this example does not…

A: Law of conservation of mass states that Mass can not be created or can not be destroyed during any…

Q: 3. The following shows a chemical reaction between carbon dioxide and water to form carbonic acid:…

A: The smallest particle of a compound refers to an ion, an atom or a molecule. Three elements :…

Q: 17. The element magnesium (Mg) can react with oxygen gas (O2) in the air to produce magnesium oxide,…

A: When Mg react with O2  it gives out MgO whic is white powder. The reaction for this changes is: 2Mg…

Q: In your chemistry classes, you have probably learned that, in a chemical reaction, the mass of the…

A: A chemical reaction is that where one form of chemical substances converts into another form.

Q: What is wrong with the expression “That is just a theory,” if by theory the speaker is referring to…

A: To determine: The error in the expression “This is just a theory” if by the theory the speaker is…

Q: You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to…

A:

Q: A concept map is your own expression of the connections between concepts- multiple connections can…

A: A question based on concept map, which is to be accomplished.

Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Which of the following substances can be separated into simpler substances only by chemical means?…

A: Given options out of  which can be separated into simpler substances are   a. gold b. water c.…

Q: We commonly encounter chemical reactions in daily life such as fire and biological metabolism. Cite…

A:

Q: Which is considered an elemental substance? A.CO (carbon monoxide) B.H2O (water) C.I2 (iodine) D.A…

A: Given,CO (carbon monoxide)H2O (water)I2 (iodine)A and C are elemental substances.All of the above…

Q: Using an example, explain the difference between a physical property and a chemical property

A:

Q: Mass of one a mu) Carbon Type 1                                12.0 Carbon Type 2…

A: The sum of all the values of individual masses divided by the total number of items in the sample is…

Q: What observations did Antoine Lavoisier make? What law did he formulate?

A: Antoine Lavoisier make an observation that in a chemical reaction matter is neither created    nor…

Q: The state of matter in which particles can separate from each other and move about randomly in…

A: Applying concept of kinetic theory of gases.

Q: What mass of potassium gold cyanide, KAu(CN)2, contains 311 g (10 ounces) of gold?

A:

Q: What are basic concepts in chemistry? Give 5 examples and explain each

A: Basic concepts of chemistry consists of number of topics which is not possible to discuss each and…

Q: Does the total mass of the reactants and the total mass of the products appear to be equal after…

A: Yes, the total mass of reactants before chemical reaction and total mass of products after chemical…

Q: A study of the Earth by The National Aeronautics and Space Administration (NASA) determined there…

A: Given  7.00 x 1011 tons of carbon    Conversion factor:  1 ton = 907.19 kg  1 kg = 1000 g = 103 g…

Q: When a 39.71 g rock was placed in a graduated cylinder with 18.62 mL of water, the water level rose…

A: Ratio of mass to volume is termed as density which can be represented by a formula as:…

Q: Is the following a chemical change, physical change or both? Explain. the ability to digest food

A:

Q: Describe the steps of the scientific process in details. Explain the difference between a theory and…

A: The basic steps of the scientific methods are :- Make an observation that describes a problem…

Q: Describe the law of conservation of mass? Give an example?

A: The Law of conservation of Mass was given by Antoine Lavoisier. It is used as the fundamental law to…

Q: Chemistry : is the science concerned with composition ,structure and properties of matter as well as…

A: According to the definition of Chemistry , this question can be explained as follows