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

Q: Can sand be separated from a mixture by filtration? Can heptane be separated from the salt mixture…

A: Answer:- This question is answered by using the simple concept of separation of different components…

Q: Which of the following items is a physical property?     the combustion of gasoline     the…

A: Whthe following items is a -       the combustion of gasoline - Chemical property   the corrosive…

Q: Which of the following are properties of liquid water? Select all that apply:   It has…

A:

Q: the characteristics of the mixtures to be separated and pick a compatible separation technique. How…

A: To separate salt from a mixture of salt ,we have two methods 1 Dissolve  the mixture in the water…

Q: Fill in the missing parts of the table below: pH POH [H3O*] [OH} 2.93 1.88 5.23 x 10-3 9.64 x 10 10…

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Q: The diagram on the left represents the result of a process. Which of the diagrams [(i) to…

A: The diagram which represent the starting material if the process were physical, and which could…

Q: 1.Why is tap water a homogenous mixture, whereas distilled water is a pure substance?  Explain.

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

Q: Why is tap water a homogenous mixture, whereas distilled water is a pure substance?

A: Homogeneous Mixture is a mixture in which the composition is uniform throughout the mixture.

Q: Jin wanted to improve the capacity of his sandy soil sample in terms of holding water, and to…

A: Soil: Soils are the found at surface which are mixture of so many living organism, water, organic…

Q: Some cooks will tell you that they salt the water used to boil pasta because adding table salt…

A: Given : Elevation in boiling point of solution required = 5 oC And volume of water = 2 L = 2000 mL…

Q: Which of the following processes require(s) chemical methods?    Separating a heterogeneous mixture…

A: Breaking a compound into its constituents elements requires chemical method. The two or more…

Q: Which of the following represent a homogenous mixture? A glass of sweet tea A pepperoni pizza…

A: No matter where you sample a homogeneous mixture, it appears uniform. A heterogeneous mixture has…

Q: At room temperature, table sugar has a solubility of 200. g in 100 mL of water. In boiling water,…

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Q: A sample of seawater has a temperature of 20° C and a density of 1.023 g/cm3. What is the salinity…

A: As the density increases, the salinity also increases whereas as the temperature decreases the…

Q: It has been estimated that there is 4 x 10^-4 mg of gold per liter of seawater. At a price of…

A: 1 km3 = 1015 cm3. 1 cm3 = 1 milliliters 1 L = 1000 milliliters 1 L = 1000 cm3 1015 cm3 can be…

Q: Assume that you have two beakers. One is filled with pure water (blue) and the other contains sugar…

A: The solution which will have less boiling point will boil more easily and hence more quantity of…

Q: Group the characteristics of the give substance according to their physical (extensive or intensive)…

A: Answer: Extensive properties of a substance are the one, those depend upon the quantity of the…

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

A: A mixture is a combination of two or more pure substances in which each pure substance retain its…

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: Which of the following mixtures can be best separated by filtration?  a. ethanol in water b.…

A: To solve this problem we have to know about filtration and evaporation .

Q: Which of the following mixture is NOT a solution? Milk Pepsi seawater O Fruit salad O Air

A: We should first have an idea of what a solution is. A solution is nothing but a homogeneous mixture…

Q: A homogenous mixture is one where O The composition is not uniform throughout None of these answers…

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Q: A 15.00 g sample of a solid substance is placed in 100.0 g of water at 25°C, and all of the solid…

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Q: Classify each of the listed properties of isopropyl alcohol (also known as rubbing alcohol) as…

A: Physical properties can be measured or observed without changing the identity of the substance.…

Q: keep homamade ice cream frozen, it is placed in a bucket of ice-water and salt mixture. A mixture is…

A: In the given question we have to calculate the mole fraction of salt. we have given data, mass of…

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: Give 5 examples of any organic compound which changes in the same way as sugar and benzoic acid when…

A: Sugar and Benzoic acid are both organic compound having made of carbon and hydrogen as skeleton .…

Q: flakes

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

Q: A heterogeneous mixture Is the one which O has one phase O has a uniform composition throughout O…

A: The question is based on the concept of solutions . We have to identify which of the given…

Q: X 26. In the question above, two liquids react together to form a solid. What term is given to this…

A: A precipitation reaction happens in aqueous solution because one product is not soluble. A insoluble…

Q: 1. A mixture (shown below) contains the following components: (1) salt, (2) water, and (3) gasoline.…

A: We are given a mixture of three components i.e salt + water + gasoline.

Q: Which of the following is best characterized as a heterogeneous mixture?  Group of answer choices…

A: Heterogeneous mixture.

Q: READ THIS: When you hear that NASA's space probes are looking for "evidence of life" on other…

A:

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: What are the following? Give one example of each.(i) Sweetening agents(ii) Food preservatives(iii)…

A: A) Sweetening agents: Artificial sweeteners are substances that are used as substitutes for natural…

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: The diagram represents a solution an element a compound a heterogeneous mixture

A: In this question, we will Identify this give diagram represent , a solution or a Element or a…

Q: Which of the following is correct? Gold nanoparticles are non-metals Gold nanoparticles are metals…

A: To find: The correct statement

Q: 2) For 30 kg of seeds contains 27% oil, the amount of solution is (a) 0 kg (b) 27 kg (c) 8.1 kg

A: General chemistry.

Q: Which of the following statements is true? Both mixtures and pure substances have variable…

A: Mixtures are basically described in 2 types such as heterogeneous as well as homogeneous.…

Q: Which of the following compounds has the strongest chemical bond? a. salt b. sugar c. water d.…

A: The strength of a bond is defined by how firmly an atom is attached to another, and consequently…

Q: Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 295 mL of…

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Q: Which is the smallest particle size: rock salt, regular salt, or finely powdered salt? Which is the…

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Q: 1 of 4 Find the best match between the following terms with its correct definition phase homogeneous…

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Q: Simple

A: We know that the exponential decay equation is given as: X = Xo ekt where X is the amount of…

Q: If you are requested to compound 150 mL of the Concentrated Peppermint Water in the Laboratory from…

A: Here we are required to find the volume of peppermint oil required for the preparation of 150 ml of…

Q: Which of the following statements is FALSE? (You can choose more than one answer) Gas doesn't have a…

A: Given statements,   (i) Gas doesn't have a definite volume or shape.   (ii) The temperature at which…

Q: List each as being a physical or a chemical property: copper sulfate is blue, iron is a solid, water…

A: Given: Copper sulfate is blue, iron is a solid, water melts at 0°C, gasoline is flammable, magnesium…

Q: Average human blood serum contains 18 mg of K+ and 365 mg of Cl- per 100 mL. Calculate The molar…

A: concentration = (no of moles of solute/ volume of solution in ml) × 1000   • pK = -log {K+} • pCl =…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.