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

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

A:

Q: Classify each image as showing a pure element, a pure compound, a mixture of two elements, or a…

A: Elements are pure substances that contain only one kind of particle and they can not be split…

Q: Classify these substances. More than one answer may apply in each case. N2 solution O homogeneous…

A: Element - It is a pure substance made up of only a single atom.  Compound - It is a pure substance…

Q: Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as…

A: a) A mixture in composition of its constituent is uniform throughout the solution is called…

Q: Which mixtures in the image represents what type of mixture? (Drag and drop your answers in the…

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Q: Draw a stepwise mechanism for each reaction.

A: The possible stepwise mechanism for the reaction is shown below.

Q: Which of the following is classified correctly? 24 Karat gold is a homogeneous mixture. Graphite is…

A: 24 karat gold is means pure gold no any other metal are mixed with gold that means 24 karat gold is…

Q: I am having trouble understanding the difference between a compound and mixture and how to identify…

A: When two or more elements are present together they are called compounds. Mixtures are made up of…

Q: Which one of these are chemical change which ones are physical change? 6) Mg + HCl 7) NH4Cl + H2O

A:

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: 1) CI ,H+ C D 2) H30+ O:

A: We have to predict the product for the following given reaction as follows in step 2:

Q: The following picture represents.. Mixtures of elements Mixtures of compounds Molecules of elements…

A: What are the chemical species present in the following

Q: 9.87 g + 0.520 g g 9.607 g – 1.00 g %3D g 7.77 g - 1.4 g %3D g

A: In addition and subtraction,  the minimum significant figures in final answer is same as fewest…

Q: Classify the following as element, compound or mixture and explain how do you know:  a) Air b)…

A: Element means which is freely present. Compound formed by more than one element. Mixture formed by…

Q: Classify these substances. More than one answer may apply in each case. N2 O heterogeneous mixture O…

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Q: | Which one of the following is often easily separated into its components by simple techniques such…

A: The combination of two or more substances without the participation in the chemical reation yields a…

Q: Indicate whether combining the following elements yields a compound or a mixture,a. H 2 (g) + O 2…

A: Pure substances are made up of only one type of atom or molecule. Compounds are the pure substances…

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: Classify the following materials as substances or mixtures: absolute (pure) alcohol, milk (as…

A: A material can be classified as mixture or substance depending on their properties. The material…

Q: Which of the following substances is the best conductor of electricity? diamond, C quartz, SiO2…

A:

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: 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: Forms 3 elements chemically.

A: This question is related to matter.

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: A solid substance is subjected to a number of tests. Which of the following test results would be…

A: Properties of matter refers to the characteristics/attributes which differentiates one sample from…

Q: 6. Which of the following is not a mixture? Vinegar B. 14 carat gold C.Diamond Wood

A: Vinegar= It is a homogenous mixture of acetic acid and water

Q: flakes

A: , Dear student I have given answer to your question in the image format.

Q: Classify each property as physical or chemical.a. the tendency of ethyl alcohol to burnb. the shine…

A: a. Ethyl alcohol burns as it reacts with oxygen in air to form carbon dioxide and water- this is a…

Q: Which of the following are mixtures? water (H2O) air (mostly N2 and O2) salt water salt (NaCl)

A: Combination of two or more elements through chemical bond in a specific proportion is known as…

Q: What is the difference between a mixture, and a compound. Give 3 examples of each.

A: A. Compound is formed by chemical bonding between two or, more elements. But, mixture is formed…

Q: If matter is uniform throughout and cannot be séparated into other substances by physical means, it…

A: If a matter is uniform throughout and can not be separated into other substances by physical means,…

Q: Which of the following is a heterogeneous mixture? Brass Raisin Bran  air  sugar water  none

A:

Q: Which one of these are chemical change which ones are physical change? 4) CuSO4 + NaOH 5) Mg +…

A: Given incomplete reactions are : 4). CuSO4 + NaOH 5). Mg + CuSO4 Which one of these are chemical…

Q: Which list only includes terms that describe oxygen gas, O2? O e lement, molecule, pure substance O…

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Q: differentiate between homogeneous and heterogeneous mixture?

A: A homogeneous mixture has a uniform composition throughout its mass whereas a heterogeneous mixture…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: According to the given data, A substance made up of the same atoms is known as an element. A…

Q: You wish to prepare 202 grams of 11.8 % Ba(OH)2. You will need _____ grams of barium hydroxide and…

A: Given:  Weight of solution = 202 gm  % by mass = 11.8 %  Density of water = 1.00 g/ml

Q: A substance composed of 2 or more elements in a fixed, definite proportion is considered a…

A: Answer :- Option C is correct answer.    Compounds   Compounds are made up of two or more elements…

Q: 4. Determine which of the following are mixtures. Water dissolved in alcohol Water dissolved in…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Complete the following statements. The provided aqueous KI/I2 was a:                  pure…

A: In a homogeneous mixture, the components completely mix with each other and the composition is…

Q: 1. 450 g flour and 1 L water 2. 500 ml alcohol and 1 L water 3. 300 g rice grains and 540 ml water

A: For measuring any component, we have to choose that material that can measure the simple ratio of…

Q: A substance composed of only one type of matter is a solution a compound a heterogeneous mixture an…

A: Matter :-  Anything which has mass and occupy some volume is called matter. Matter is of three types…

Q: Mixtures are divided into two classes based O 1. mixtures and matter on their appearance. What are…

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Q: What is being represented by the picture below? a compound being physically separated into its…

A: In the representation, the reactants contain molecules of a compound and the products contain…

Q: When a single salt crystal is added to a cool liquid, large crystals form. Which statement about the…

A: The question is based on the concept of recrystallization. we have to identify the correct statement…

Q: Substance A Substance B O element O element compound O compound Substance C Substance D O element O…

A: Elements are the purest form which have some solid defects like Schottky Defects · Frenkel Defect ,…

Q: The following picture represents.. * 1 point O Mixtures of elements O Mixtures of compounds O…

A: Element is the purest form of the substance. The mixture of elements contain the same kind of atoms.…

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…