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Chemistry
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.
221k
Questions
Q: Is there baking soda in puregold
1 answer
Q: Can we say that enzymes work in optimum conditions only if yes than why
2 answers
Q: How many moles of hydrogen gas are present in a 50.0 liter steel cylinder if the pressure is 10 ATM. And 27 and Acirc and degC
2 answers
Q: Why is anisole ortho and para director towards electrophile substitution reaction
1 answer
Q: Identify the variables that you need to control and the variable that you will change
1 answer
Q: The safe residual for an oxygen cylinder is
2 answers
Q: What is the chemical name of P2I5
2 answers
Q: A number placed in front of a chemial formula in a chemical equation is called
1 answer
Q: How much of NaCl is in 1.84 L of 0.200 M NaCl Answer in units of mol.
2 answers
Q: The acidity of a solution reflects the free hydrogen ions in the solution
2 answers
Q: What is C12H22O11 pi mean
1 answer
Q: Is leaves going yellow a physical or chemical change
2 answers
Q: Is butter melting on toast a chemical or a physical change
3 answers
Q: Is ink drying a physical or a chemical change and what are some examples
1 answer
Q: What are the strong and weak points of ateacher
1 answer
Q: A is a thin glass tube with a bulb on the one end that contains liquid usually mercury or colored alcohol
2 answers
Q: When carbon dioxide is used to create glucose during photosynthesis which two spheres are interacting
1 answer
Q: What is the process that breaks down rocks by changing their composition
2 answers
Q: Does temperature affect the speed that food dye diffusion through water
1 answer
Q: What happens when water becomes warmer
1 answer
Q: Predict the charge that an aluminum ion would have.
2 answers
Q: What state of matter is PbI2
4 answers
Q: Why do oxygen atoms easily combine with two hydrogen atoms
1 answer
Q: What is the element symbol O5
2 answers
Q: Why do we use a double arrow in the dissociation equation for a weak acid
1 answer
Q: What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k
1 answer
Q: The mannerist movement was the reaction to
2 answers
Q: What is the chemical composition of oyster shell
4 answers
Q: When calcium chloride is dissolved in water to which end of the adjacent water molecule
1 answer
Q: Elements that have the highest first ionization energy
8 answers
Q: What is the Ph level of shower gel
1 answer
Q: The sharing of valence electrons between atoms indicates an ionic bond true or false
1 answer
Q: How much does 125 litre of compost weigh
1 answer
Q: Write balanced symbol equations to explain the chemistry behind each of the following a.Zinc can be used to protect iron. b.Copper can be plated onto aluminium using copper nitrate solution
2 answers
Q: What is the daughter product in the beta decay of 144Ce
1 answer
Q: What happens when the K value is larger
1 answer
Q: What is one substance that is produced during respiration and excreted by the body
2 answers
Q: What chemical reaction occurs when the body breaks down sugar
2 answers
Q: Does nitrogen lose or gain electrons more easily
6 answers
Q: For diffusion to occur which condition must be met
4 answers
Q: Silver coins and sulfur
3 answers
Q: Glass has a hardness of about 5.5 what minerals would scratch the glass
2 answers
Q: What is a way to understand unpredictable electrons
2 answers
Q: Is NH2O a compound
1 answer
Q: What is N3HO
1 answer
Q: How many moles are in 0.525g of AgCl
2 answers
Q: The sulfur and nitrogen compounds in smog combines to form
1 answer
Q: Metal lids on glass jars can often be loosened by running hot water over them. Why does that work
4 answers
Q: What is the percentage composition of amonium sulfate
2 answers
Q: Do i have to fast for a cmp blood test
1 answer
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