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Chemistry

Delve into the study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. Chemistry is the central science connecting other scientific disciplines.

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Questions

Q: Why does a semiconductor have fewer free electron than a conductor

Q: The electron configuration of an exited state of oxygen is 1s2 2s2 2p3 3s1 but my question is why it is not 1s2 2s1 2p5 how to determine which electron in which orbital is move to the another

Q: Is ZNSO4 acidic

Q: Is mixing for mud and water is a physical change and why

Q: Are there any acids with a pH of 0

Q: What is different about the laboratory room from a normal classroom

Q: What is the difference between oxygenated fuel and non oxygenated fuel

Q: Gasoline is a clear pink solution is it physical or a chemical property

Q: What is 925 cz on a ring

Q: What element has three electrons in energy level n 4

Q: What is a non example of osmosis

Q: If you wanted to test a piece of food to see if it contained protein which chemical would you use

Q: What is a penultimate shell

Q: How do you get rid of semen stains off the carpet

Q: What is the chemical name for V3N2

Q: Where is astatine can be found in nature

Q: What is the chemical name for the compound with the formula Na2S

Q: What is mystery word in forensic science challenge

Q: Which soap makes more bubbles

Q: What is the pH level of copper sulfate

Q: The part of the enzyme into which the substrate fits is called the

Q: What is the oxidation number for H in H4P2O7

Q: What happens if you use water instead of mercury in determination of atmospheric pressure

Q: What are carbon compounds that are associated with living things called

Q: Is lithium iodide a compound

Q: What is the empirical formula of a mineral having the percent composition 28.59 O 24.95 Fe 46.46 Cr.

Q: What famous chemist after inventing dynamite went on to use his earning to found an international prize promoting world record

Q: Is chlorine a metalloid or nonmetal

Q: What property of potassium ions allows them to transmit

Q: What temperature does ink boil at

Q: Does potassium change a different colour when mixed with water

Q: What is the molarity of 32 percent HCl

Q: Is it dangerous to swallow a bit of dry erase marker

Q: What is the balanced equation of copper nitrate and sodium chloride

Q: How would you separate a mixture of wood and gold

Q: How do you remove bromine in Bromobenzene

Q: What is the name given to the substances at the start of a reaction

Q: What is the number of grams of ice that can be melted by 1 g of 100c steam

Q: What primary color has the longest name

Q: What is the colour of zinc oxide after heating it

Q: Which chemical coated on a copper item will fuse the 3volt bulb of a torch

Q: Which of the following is TRUE about a Departmental Accountable Officials

Q: How many atoms in CaO

Q: How is solute and solvent each defined

Q: What chemicals do antacid contain

Q: Is potassium hydroxide an alkali or a base

Q: What are the Intermolecular forces between honey

Q: Why does sodium carbonate produce gas

Q: What element has the symbol L

Q: What is nitrogens element symbol

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