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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: What is an asotopes

Q: Can acids be made safe by heating them

Q: Is SO3 ionic or covalent

Q: How do you convert kJ mol to J gram

Q: What is better coal or charcoal

Q: What is the compound with the symbol h2o

Q: Is zinc a metal

Q: What is the freezing point of water on other planets

Q: Why is sodium kept under kerosene

Q: What can a burning coal do for a power palnt

Q: Is NH3 a bronsted acid or base

Q: Can a stable compound be made from lithium and oxygen atoms

Q: What is the chemical formula of the aquamarine

Q: Is a panda endothermic or extothermic

Q: Number of atoms in KNO3

Q: Why phenol is more acidic than alcohol

Q: Is COS polar or non polar

Q: What is the charge of PPh3 when calculating oxidation states

Q: What are 3 kinds of storage mediums

Q: Is thrown rocks physical change or a chemical change

Q: Is borax and boric acid the same

Q: Determine if homogenized milk is a mechanical mixture or a solution

Q: What If a reaction starts with 4 Cu atoms 5 O atoms and 10 H atoms what is known about the products

Q: You find a ring with a mass of 107 g. You fill a graduated cylinder up with 10 mL of water and put the ring into the cylinder. The water rises up to the 15 mL mark.

Q: What color is the opposite of silver on the color wheel

Q: Is chewing a bite of hamburger physical or a chemical change

Q: What color combination provides saffron color

Q: What is the oxidation number of the elements in AsH3

Q: What does CID mean on jewelry

Q: What happens when a peace loving nation becomes martial

Q: What is stronger acid or lava

Q: Is fructose polar or nonpolar

Q: How much is in a ounce of weed

Q: What is the chemical formula for antacid

Q: Is N2F2 covalent or ionic

Q: Why does constant Kc in chemical equilibrium has no units

Q: Zn s plus 2AgNO3 aq ---- Zn NO3 2 plus 2Ag s

Q: Why would aluminium oxide be good to use for drill heads

Q: What happen when you mix glue with Clorox

Q: Which is more concentrated -20g of alkali in 250 cm3 of solution or 10 g of the same alkai in 500 cm3 of solution

Q: Why is the boiling point in Durban different from that in Johannesburg

Q: What type of bond will form between the elements zinc and copper

Q: What is the chemical formula for aluminum foil

Q: Does wulfenite form slowly

Q: Is H2O a metal non metal or metalloid

Q: Why cant a third H atom join an H2 molecule to make a H3

Q: Which is more expensive titanium or diamond

Q: Can you grow orbeez in soda

Q: Is ClF2 polar or non-polar

Q: What element has a number spelled backwards in the middle of its name on the periodic table

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