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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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Questions
Q: What is a substance which cannot be compressed and cannot flow
2 answers
Q: What is a noun sentence for nontoxic
1 answer
Q: Why don't we run out of water or oxygen
1 answer
Q: What is the density of heroin
1 answer
Q: Which the following is a necessary product of a combustion reaction
3 answers
Q: How are sodium and chlorine similar
1 answer
Q: What organelle turns solar energy into chemical energy
1 answer
Q: What dissolves salt faster
2 answers
Q: Which step in the process of glycolysis requires the presence of oxygen
2 answers
Q: What are 4 quantum numbers for Bromine
1 answer
Q: Does Amoeba need or produce oxygen
1 answer
Q: Why is seawater not suitable for use in chemical analysis
3 answers
Q: What substance reacts with oxygen
2 answers
Q: Is a change in the temperature a physical change
5 answers
Q: Why do we need to know the baking terms.
1 answer
Q: What would happen if a sodium atom and a chlorine atom came into contact
9 answers
Q: How you can test the pH of solution
2 answers
Q: When a molecular solid mixes with water do the covalent bonds within molecules break
2 answers
Q: What is the chemical product of BaNO32 H3PO4
6 answers
Q: Is O3 a ionic or covalent bond
11 answers
Q: In a firework show the fireworks explode giving off heat and light is this a chemical change why
3 answers
Q: What is the usable form of nitrogen that is found in the ground
1 answer
Q: Which formula for sulfuric acid is written correctly to show one sulfur atom two hydrogen atoms an four oxygen atoms
1 answer
Q: What atoms make up oak
1 answer
Q: Which element has 1s 2 2s 2 2p 6 3s 1 as its electron configuration
2 answers
Q: Who is name discovered to atomic number
1 answer
Q: What happens when a rock Is chemical weathering
1 answer
Q: How many atoms in 3CaCl2
2 answers
Q: Is silk an mixture compound element
1 answer
Q: Where are the lanthanide and actinide series found
7 answers
Q: Why is oxygen kept in bottles
1 answer
Q: What percentage of oxygen to sustain a fire
1 answer
Q: What is Glow stick liquid
1 answer
Q: Which two processes are responsible for keeping the percentage of atmospheric oxygen the constant levels
2 answers
Q: What does one vertical line mean on a pregnancy test
2 answers
Q: When molecules are most tightly held to each other and most closely packed together what state of matter are they most likely in
1 answer
Q: Why does the solution go cloudy
7 answers
Q: How does the respiratory system bring in oxygen for the body
1 answer
Q: What is the definition of elements that are shiny and that conduct electricity
1 answer
Q: What elements are found in ammonium phosphate
1 answer
Q: What organ provides oxygen to cells
1 answer
Q: Is P4 molecular
2 answers
Q: What information does 9 give about an atom of fluorine
1 answer
Q: Why sodium hydrogen phosphate is a base
1 answer
Q: What is another word for a pure metal
1 answer
Q: What is the role of bicarbonate in gas transport
1 answer
Q: How many nicks in a ounce of weed
2 answers
Q: What oxygen and acetylene pressures are used when cutting 12.7mm sheet with a positive pressure torch
1 answer
Q: Is MgBr a base
2 answers
Q: What happens if the hydrogen pumps in photo systems i and ii and not working correctly
1 answer
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