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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 density of CO gas if 0.196 g occupies a volume of 100ml
2 answers
Q: How does technetium smells like
1 answer
Q: Indenify What mineral that would wear out the fastest
1 answer
Q: What does sulfur and tellurium
1 answer
Q: Is caesium non-polar solvents or polar
2 answers
Q: What elements is Teflon made of
1 answer
Q: What pH is sodium hypochlorite
1 answer
Q: What is the metal which it would be dangerous to add to dilute hydrochloric acid
2 answers
Q: Is mixing cornstarch and water a physical or chemical change
8 answers
Q: Why are they call primary colors
2 answers
Q: What is a symbol that shows the elements in a compound and the ratio of atoms
4 answers
Q: What sort of bond barium and iodine would form if mixed
2 answers
Q: What property changes from gas to liquid
2 answers
Q: What is a small theater that charged a nickel per person called
5 answers
Q: How do you determine the number of silicon atoms in 4SiO2
2 answers
Q: What is the ionic compound Be(HCO3)2
1 answer
Q: Which one of the following is not an example of a combination reaction.
1 answer
Q: What contains silicon and oxygen and usually one or more other elements
1 answer
Q: The most commonly requested types of leave are
2 answers
Q: What happens when water vapour cold
1 answer
Q: What is the percentage of nitrogen by mass in calcium nitrate
1 answer
Q: Why are covalent compounds more dangerous near an open flame
1 answer
Q: What are non examples of cations
4 answers
Q: When writing the chemical formulas for ionic compound which ion is written first
1 answer
Q: Why is the permanganate solution added slowly to hydrogen peroxide solution
2 answers
Q: Why are Na and Cl harmful alone but together aren't
1 answer
Q: What ion has 36 electrons and a charge of -1
1 answer
Q: What happens when copper react with nitic acid
1 answer
Q: Why candle wax has a low melting point
1 answer
Q: What a thermometer ued for
6 answers
Q: What two products does photosynthesis create
2 answers
Q: Is tif2 polar covalent bond
1 answer
Q: What is the chemical name of CH3COOH(aq)
3 answers
Q: Why is it so difficult to separate the oil from water
2 answers
Q: How many times more hydroxide ions there with of 9 than in a solution with a pH of 3
2 answers
Q: How much does nihonium cost for 100 grams
1 answer
Q: Does sugar react with HCL
2 answers
Q: What is the term when you love water
2 answers
Q: What happens when you mix baking soda with water
2 answers
Q: Why would you use a graduated cylinder in the lab procedure
1 answer
Q: What were the glass makers called
1 answer
Q: How many moles of C are in 90g of CO2
4 answers
Q: What are atmos of the sam element that have different numbers of neutrons called
2 answers
Q: What happens when hydrochloric acid reacts with water
1 answer
Q: How many atoms are in 2CH4
2 answers
Q: Why oxygen atoms easily combine with two hydrogen atoms
1 answer
Q: What is the ionic charge of calcium
1 answer
Q: What is the term for matter having indefinite composition and variable properties
2 answers
Q: What volume of Hydrogen at STP is there by dissolving 13.49g of aluminum in sulfuric acid
1 answer
Q: What are atoms that are made of more than 1 called
2 answers
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