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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: How did the iodine soluton affect the image of the onin cell
1 answer
Q: Why is phenolphthalein a better indicator than thymol blue
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Q: Does baking soda make bigger soap bubbles
1 answer
Q: What colour is blood when it does not contain oxygen
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Q: Is heptane the same as hexane
7 answers
Q: What is the product of sodium hydroxide plus copper sulphate
1 answer
Q: What is an orbital diagram of fluorine
1 answer
Q: What are some some characteristics of a nucleus
1 answer
Q: What is the mass of 2.2 x 109 CO2 molecules
3 answers
Q: How is the state of mattr related to the amount of energy in a substance
2 answers
Q: What chemical processes are used to create fragrant oils
2 answers
Q: How much does 3 gallon of sauerkraut weigh
1 answer
Q: What is the chemical element for Fe2(SO4)3
2 answers
Q: What is the oxidation state of of Mn in the compound Mn2
1 answer
Q: Can an electron in the outer energy level be called a valence electron
2 answers
Q: Is phosphate a sulfate
2 answers
Q: Is crude oil a mixture or a compound explain
1 answer
Q: Why O2 is necessary for rusting
3 answers
Q: Are acids or alkalis more dangerous
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Q: Which is NOT a product when acid reacts with bicarbonate a. carbon dioxide b. hydrogen gas c. salt d. water
1 answer
Q: What are the harmful effects of changes in materials
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Q: What conditions are needed for cracking of oil fraction
1 answer
Q: Can lighting a fire in the fireplace with a chimney make the rest of the house colder
3 answers
Q: What effects does shortening the electrode extension have on weld penetration
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Q: Is aerosol a pure substance homogeneous or heterogeneous mixture
2 answers
Q: When citric acid and baking soda mix carbon dioxide is produced and the temperature decreases what is this
1 answer
Q: What colour does Ferric chloride burn
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Q: When the gates to the ion channels open they allow sodium ions to rush into the axon at the which location FIRST
1 answer
Q: Combining oxygen with food to release energy is called what
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Q: What is the mass of dish soap
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Q: How does the soil becomes too acidic in nature
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Q: How much does a beaker weigh with 40ml of water
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Q: What is a sentence with stabilize
2 answers
Q: How many grams are there in 1.36 mol of ethyl alcohol
2 answers
Q: Who invented handsanitizer
1 answer
Q: How would you separate a mixture of water and alcohol
4 answers
Q: What substance is a solid at 75 celsius and a liquid at 70 celsius
1 answer
Q: What is the solubility of technetium
1 answer
Q: How does the burning of natural gas methane release energy
2 answers
Q: How much are flawless clean white diamonds per gram
2 answers
Q: What does h3 stand for on the periodic table
2 answers
Q: What should you do if chemicals spill on the work bench or on the side of a reagent bottle
1 answer
Q: What does a concentrated weak acid mean
1 answer
Q: How much does a liter of propylene glycol weigh
1 answer
Q: What role can inorganic metals such as iron or zinc have in a reaction
1 answer
Q: Why experiment need to be carried out three times
1 answer
Q: How many pounds is 1.48 grams
3 answers
Q: What does putting together dissimilar elements refer to
2 answers
Q: Which would be found in the beaker of DNA but not in the beaker with glucose
1 answer
Q: How do living things add carbon to theatmosphere
2 answers
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