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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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Q: Can you use reverse osmosis water in lead acid batteries
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Q: 4.5165 x 1019 NO3-1 ions numbers of particles to numbers of moles
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Q: How many grains in one troy gram
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Q: What does vsepr theory tell us about a molecule
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Q: Why was the bond of 1844
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Q: Correct electron configuration for an element with 5 electrons in the third energy level
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Q: What is an atom that has gained or lost electrons callled
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Q: What is the limitation of using litmus paper
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Q: Which of KBr and SO2 and AlCl3 is not likely to be an ionic compound and why
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Q: What kind of ions is associated with bases
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Q: Calcium's atomic number is 20. What does that that tell us about a calcium atom
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Q: In a tank holding 30 gallons of solution 1 gallon is alcohol. What is the percentage of alcohol in the solution
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Q: Can scientist make new atoms in the future
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Q: Why are the initials on the gold tube significant now
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Q: CaCl2 is a salt that forms as the result of what type of bond
2 answers
Q: How much would the boiling point of water increase if 4 mol of NaCl were addes to 1 kg of water
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Q: What is the pH of iodine
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Q: Explain why water molecules are capable of hydrogen bonding with 4 neighbouring water molecues
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Q: What does it mean when a pH is lower than seven
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Q: Is PCl3 an electrolyte
10 answers
Q: Elements are arranged in the periodic table based on various patterns. For example elements found in the rows near the top
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Q: Is boron in calcite
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Q: Silicon has a relatively large latent heat of vaporization of 12800 Jg. This indicates that silicon has
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Q: Atomic no. of the cation
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Q: The formation of what would be favored by the addition of heat
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Q: Why does acetone evaporates faster than n-hexane
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Q: How do you prepare 0.4 M hydrochloric acid
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Q: What is the difference between enamel lamella and crack
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Q: Is there baking soda in puregold
1 answer
Q: Can we say that enzymes work in optimum conditions only if yes than why
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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
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Q: Identify the variables that you need to control and the variable that you will change
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Q: The safe residual for an oxygen cylinder is
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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
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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
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Q: A is a thin glass tube with a bulb on the one end that contains liquid usually mercury or colored alcohol
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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
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