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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 would we determine the molecular weight for a molecule water h2o
2 answers
Q: What are the three elements that can be classified based on their properties
2 answers
Q: Why does silicon have such a high resistivity
1 answer
Q: What is the name given to the exchange of oxygen and carbon dioxide
1 answer
Q: Are all polymers made of chains smaller molecules
2 answers
Q: What compound will be formed between copper ion and carbonate ion
2 answers
Q: Why gold is corrosion resistant
3 answers
Q: Why aluminium resistant to corrosion
2 answers
Q: Why can the fluid used to dry-clean clothing remove grease even when cannot
2 answers
Q: What is the percent by volume concentration of 78.9 mL of acetone in 1550 mL of an acetone-water solution
3 answers
Q: Why do most molecules have covalent bonds
1 answer
Q: How does pure ethanol smell
1 answer
Q: What kind of change is painting a wall
2 answers
Q: Where does oxygen gas production
1 answer
Q: What is the fiftieth element in the periodic table
4 answers
Q: How much tar in 25 grams of amber leaf
1 answer
Q: Which of the following best defines sense of self
2 answers
Q: What is the compound name for Ne3F5
2 answers
Q: Which has more dissolved gases in it-hot water or cold water
2 answers
Q: How many electrons does a carbonated ion CO32- have
1 answer
Q: How do use bond in a sentence
2 answers
Q: When tin chloride reacts with mercury chloride
2 answers
Q: What elements make up a steal knife
1 answer
Q: Which class ofchemical is linked to the decrease in the amount of ozone in the upper atmosphere of the earth
2 answers
Q: What is the difference between boiling and distillation
2 answers
Q: What is the composition of polymers
2 answers
Q: What is the colour of the flame when the hole is fully open on a Bunsen burner
2 answers
Q: Why are ionic compounds neutral even though they are made up of charged particles
2 answers
Q: What is meant by the term coefficient in relation to a chemical equation
1 answer
Q: Are all ionic compounds crystalline
1 answer
Q: How does oxygen stay around earth and not float into space
1 answer
Q: How is boiling point and melting point related
2 answers
Q: What properties would be desirable in a gas that fills an air bag
2 answers
Q: What is the balance equation for nitric acid and lithium hydroxide
1 answer
Q: Rain exists in what phase
2 answers
Q: How many hydrogen atoms makes up a hydrogen molecule
2 answers
Q: Do metals have more than one oxidation number
1 answer
Q: How do you create a periodic chart using 26 imaginary elements
4 answers
Q: What kind of forces act within a molecule
5 answers
Q: Which of the following are influenced by the attractive forces between the atoms ions or molecules in a substance
2 answers
Q: What does hydroxide look like
2 answers
Q: How is compound different then molecules
6 answers
Q: How many electrons are present outside the nucleus of the oxygen atom
2 answers
Q: Why does chlorophyll look green
2 answers
Q: What is the oxidation number of BrF
1 answer
Q: Does OF2 have ionic bonds
1 answer
Q: How would you use bond in a sentence
2 answers
Q: What percentage of our atmosphere is made up of gases other than oxygen
1 answer
Q: What elements does dirt contain
7 answers
Q: Can cells absorb food and oxygen
1 answer
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