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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: 175g of water was heated from 15 degrees Celsius to 88 degrees Celsius. How many kilocalories were absorbed by the water
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Q: How are ionic bonds formed and what type of structure do they create
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Q: Explain why a triple bond between two nitrogen atoms is stronger than a double bond between two oxygen atoms
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Q: The nutrient formed by amino acids
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Q: What is a fluorinated hydrocarbon
8 answers
Q: What is the mole fraction of ethanol C2H5OH in an aqueous soloution that is 50.0 ethanol by mass
2 answers
Q: Is phosphoric acid a stimulant
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Q: What is this substance I am colorless to white and I am used as a food additive usually with pepper
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Q: Someone who does experiments
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Q: Combining equal amounts of the three primary pigments produces
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Q: What is the independent variable in the magnesium oxide reaction
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Q: What sort of error is expected if the reaction during titration is incomplete
1 answer
Q: When the pH level of a solution changes from a pH of 5 to a pH of 3 the hydronium ion concentration is
2 answers
Q: 2HCL plus Zn what is the result
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Q: Where are innermost electrons located
1 answer
Q: Using the particle theory of matter why does gold become a soluble in water when combined with cyanide
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Q: What is the property that describes how easily a substance catches fire and burn
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Q: What is a heterogeneous mixture in which the particles are large and dispersed and can be seen and easily separated
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Q: Hypobromite is used to purify contaminated water. what is the formula for hypobromite
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Q: The rock shown is composed primarily of large Crystals that were formed by
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Q: Why are some noble gases called inert gases
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Q: How do i get rid of under foot stains
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Q: Are fire extinguisher gases harmful to humans
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Q: How do you make white paint a cream color
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Q: The total number of calcium atoms in 80.0 grams of calcium is
2 answers
Q: Hexane is an organic solvent that has a density of 0.6603 g cm at 20c if hexane is mixed with water there is a separation of the two solvents into two layers why did this separation occur which solven
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Q: Solutions of hydrochloric acid caused the light bulb to glow brighter than solutions of acetic acid how do you account for thedifference in behavior between these two compounds
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Q: An empty facility with basic services would be considered
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Q: What is the colour of sodium carbonate
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Q: Can you mix a non-ionic surfactant with bleach
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Q: 452 Ml of water turned into liters
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Q: Electrons are distributed evenly over an molecule
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Q: Which of the following shows a chemical reaction in which silane and oxygen are the reactants and silicon dioxide and water are the products
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Q: If the difference in electronegativity values between two atoms is more than 1.7 ionic bonds generally form.
1 answer
Q: In the compound Fe2O3 iron's oxidation number is while oxygen's oxidation number is -2.
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Q: What are the four elements of the context of a text
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Q: 1 atom of cobalt 2 atoms of chlorine forumla
1 answer
Q: The chemical formula for glucose is C6H12O6. How many different elements make up one molecule of glucose
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Q: Locate the polyatomic ion in the compound MgSO4.
2 answers
Q: Table salt is an example of a binary ionic compound. true or false
1 answer
Q: Using the particle theory of matter why does gold become soluble in water when combined with cyanide
1 answer
Q: Molecular compounds are usually .
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Q: Which formula represents lead(II) hydroxide
2 answers
Q: The spatial arrangement of electron groups around the central atom is called what
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Q: An acid is best defined as a substance that
1 answer
Q: Why do you add acetic acid to milk as a first step in isolating casein
1 answer
Q: Carbon dioxide is a non polar molecule true or false
2 answers
Q: What would happen if our atmosphere consisted of puree oxygen
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Q: What two factors determine the point at which liquid will boil
2 answers
Q: One drop equals how many mls from a 1 ml pippette
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