Mixing sand and water is an example of physical Select one: True False

Q: 36) Apure substance be oparated into two difs.

A: Given : a pure substance.

Q: Green chemistry rests on a set of 12 principles. What are they?

A: 12 principles of green chemistry has to be given,

Q: Differentiate intensive to extensive properties. Not less than 6 sentences.

A:

Q: Match the following set-up to the type of mixture that it could be used to separate. # methanol and…

A: Given,  Mixture are : Methanol and water Sand and saltwater

Q: Which of the following glassware is best used for drying solid samples in an oven? A Watch glass B…

A: Different equipment are used for different purposes in chemical laboratory.  Some common equipments…

Q: Identify the state of matter that is a mixture from the list below:

A: We need to identify the state of matter that is a mixture of the given list. Three 3D representation…

Q: 24- Of the following propositions the one that illustrates a chemical property is:Unique option.…

A: Chemical property :-  A property of the substance which involve the formation of a new substance by…

Q: For each of the substances listed below, determine whether they would exist as a solid, liquid, or…

A:

Q: What properties distinguish solids from liquids? Liquids from gases? Solids from gases?

A: Solids have no empty spaces between the molecule which gives them a definite and rigid structure.…

Q: Element, Pure substance or compound, mixture homogeneous or heterogeneous blood ammonium |chloride…

A: Blood : It is a mixture of many components such as RBCs, WBCs etc. These are present in different…

Q: Please look at the image 1 for the graph for 1a, b, and c (the one that starts with 20 degrees on…

A: For image 1 : a) The temperature range during which the substance can be found in the liquid state…

Q: Dehydration of body tissues is a chemical change  True  False

A: Dehydration of body tissues is a chemical change or not --answer is given below.

Q: Write “physical change” or “chemical change” next to the following statements. Burning of gasoline…

A: The change in the form of a substance without changing its identity is called as physical change. A…

Q: Determine if each of the following is a chemical or physical property. Chlorine gas has a…

A: Physical properties are those which tells about physical appearance of a substance .  In this we…

Q: Circle any of the following that are most likely a pure substances? A) T-shirt C) air E) tap water…

A: Pure substance: A pure substance (element or compound) always has a definite composition by mass.…

Q: physical and chemical changes is

A:

Q: Mixture of water and sand is an example of Heterogeneous mixture Select one: O True O False

A: Answer  A mixture in which the composition is not uniform throughout…

Q: LO-1 1. Calcium carbonate, a white solid with a density of 2.71 g/mL, reacts with hydrochloric acid…

A:

Q: Identify the following as a pure substance or mixture * xXx

A: Pure substance is defined as the sample containing only one type of molecules of the compound.

Q: 4- The ideal size for a burette used in acid- base titration in which easy cleaning, maintain and…

A: We know that   Burette : a graduated glass tube with a tap at one end for delivering known volumes…

Q: Ice Sculpture Drop of water Air around clouds State (Solid, Liquid, or Gas) Physical description…

A: Ice sculpture  State:-   Solid Physical description:- cage like structure Drop of water State :-…

Q: The bottle contains 15 grams of Ni powder Macroscopic or Microscopic?

A: If a object of our interest can be seen with the naked eye, then the constituting substance is…

Q: Which physical property cannot be used for measuring temperature? Color, tensile strength, volume of…

A: Hence, the correct answer is colour and tensile strength.

Q: Bronze is an example of Homogeneous mixture ؟ true or false

A:

Q: Which is more efficient method of separating solids from liquids by filtration or by decantation?…

A: Filtration is a process of separation of solid particles from liquids by passing the liquid through…

Q: 3. Label the following as a pure substance or a mixture. (a) (b) (c)

A: Pure substance: A pure substance is formed by only one type of particle. A pure substance can be a…

Q: What is physical property and chemical property?

A: Physical property- Physical property are those property whose  identity does'nt change. Physical…

Q: Of the following propositions, the one that is considered as the confirmation of the hypothesis…

A: We are to decide what is condered as the confirmation of a hypothesis, we will use the definitions…

Q: Ozone is a pollutant in the lower atmosphere, but part of the protective shield against UV light in…

A: We have to classify the following properties of ozone as chemical or physical 1) Bluish color 2)…

Q: Discuss the difference between hypothesis and theory.

A: The difference between hypothesis and theory has to be calculated,

Q: Which of the lower ones is not correctly recognized for a physical property? A) The ability of a…

A: Answer - Physical properties - Physical properties can be observed or measured without changing the…

Q: Classity each of the properties as a physical property or a chemical property. Drag each item to the…

A: Physical properties: These are the properties that can be measurable. There is no change in the…

Q: Celsius scale water freezes On the Celsius scale, water freezes at 32 degrees. True or False True…

A: Given statement is true or false ?