Camphor particles do not dance about in water contaminated with oil, Why?

Q: Why is soap solution a better cleansing agent than ordinary water?

A: Water although a good general solvent, has a high surface tension. This makes the water molecules to…

Q: Mango lemonade tea consists of several substances that are NOT chemically combined, so Mango…

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Q: When wax is coated on clothes , they become water proof. Why?

A: When there is no wax, adhesive force between cloth and water molecules is stronger than the cohesive…

Q: Potassium nitrate (KNO3) crystals were insoluble in water at room temperature. Heating the solution…

A: Most (if not all) chemical reactions will reach their terminal point faster with an addition of…

Q: Many dry cereals are fortified with iron, which is added to the cereal in the form of small iron…

A: The iron particles are separated from the cereal with the help of magnets. we need to grind and…

Q: Which element is needed and absorbed normally by your body when you are breathing?

A: Oxygen is brought into the lungs by breathing, where it is transported by red blood cells to the…

Q: defination of heterogeneous nucleation?

A: Nucleation is a process that comes into existence either when a substance changes its thermodynamics…

Q: Boston pizza franchises must pay royalties on all sales, and they must commit to renovating their…

A: Given: Boston pizza franchises must pay royalties on all sales, and they must commit to renovating…

Q: If no molecule in a body can escape, would body have any odor?

A: The odour is due to molecular diffusion, hence if the molecule could escape, the body will have…

Q: What was the result after Chernobyl?

A: Chornobyl is a disaster caused by accidents with reactors/nuclear reactors. it causes serious…

Q: c. HCl in acetonitrile (CH;CN) H-CI н-с-с-N in d. HF in H20 H- F in H.

A:

Q: A plant stores energy in the bonds of sugar molecules.

A: Answer             A) chemical

Q: Discuss electrolytes and nonelectrolytes in a solution.

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Q: is amber and rabbit fur negatively charged

A: Basically anything in this universe is electrically neutral. i.e the sum of negative charge and…

Q: An irregularly shaped piece of metal of density 7.8 g/cm^3 weighs 429 grams when completely immersed…

A: The weight of an object is the product of the mass and acceleration due to gravity. The mass of the…

Q: Compared to a neutral solution (pH=7.0), something with a pH of 6.0 is 10 times as basic only…

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Q: Match the product with the biomass feedstock: A) Bio-diesel B) Dimethyl Ether 1)Wheat 2)Sewage…

A: SOlution: to match the Bio mas vs thier product

Q: What is the full form of COBE?

A: The full form of COBE is cosmic background Explorer.

Q: Distinguish the same chemical characteristics but have different physical properties?

A: Required : Which have the same chemical characteristics but difference physical properties.

Q: is yaclioacive . Deiermine emiller wheitrer it is an d-emiller or a B- .

A: Given:  Z = 72 A = 170

Q: Why do solutions containing acids conduct an electric current

A: Aqueous solutions of acids dissociate H+ ions in the solution which helps conduct electricity…

Q: Plants grow in many different shapes and sizes. Much of their shape depends on an internal structure…

A: Plants have their natural process to grow in different shapes. This gives them the  beautiful…

Q: Why hot water bottles are used for fomentation?

A: Hot water has high specific heat capacity. Due to this, the water remains hot for a longer duration.

Q: Differentiate between endothermic reactions and exothermic reactions?

A: Endothermic Reactions: A reaction that the system absorbs energy from its surrounding in the form of…

Q: Water can be sprayed easily when soap is added to it, Why?

A: Because addition of soap decreases the surface tension of water. The energy for spraying is…

Q: What is the mass of 2.50 LL of pure water? What is the mass of 2.50 LL of whole blood? What…

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Q: Activity 2.1 Intermolecular Forces present among species Identify the intermolecular forces present…

A: There are four types of bonds: ionic bonding van der Waals dispersion forces hydrogen bonding van…

Q: What are the five most common elements in living things?

A: Living things are composed of several elements, but there are certain elements which form the basic…

Q: Compare to air sound heard is more in carbon dioxide , Why?

A: The intensity of the sound wave produced in a medium is directly proportional to the density of the…

Q: If no molecules in a body could escape, would the body have any odor?

A:

Q: How can nanotechnology be used in the prevention and treatment of illnesses?

A: By using nanotechnology, scientists prevent illness, more quick diagnose processes , control disease…

Q: Draw the formation of maltose and show the following a. Molecular structure of the subunits b.…

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Q: density of platinum is 21.45 x 103 kg/m3. a. Calculate the volume (in m3/atom) occ

A: density= mass/volume

Q: Oil rises in lamp wick, Why?

A: The oil in the wick of an oil lamp rises up due to capillary action. This effect is due to surface…

Q: When blue litmus paper turns red, the substance being tested is acidic basic

A: Here talking about the compounds PS test. Here given a blue litmas paper turns red. We have to find…

Q: A solution that attracts a net flow of water is a (?????) one.

A: Given: A solution that attracts a net flow of water is ?

Q: What is the AXIS OF SYMMETRY of the graph? y 7 -6 -5 3 -2 -1 2 3 4 5 6 7 -4 Ox - 2 Ov--2 O x-- 2…

A: