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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: Where do chemotrophs get there energy
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Q: How much would the freezing point of the water decrease if 4 mol of NaCl were added to 1 kg of water for water and i 2 for NaCl
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Q: Is 11prime number
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Q: Will a reaction take place if a strip of zinc metal is placed in a lead II sulfate solution
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Q: What is the number of proton and electrons of magnesium ion
5 answers
Q: Is tin II nitrite ionic or molecular
8 answers
Q: What colour is methyl orange in alkaline
1 answer
Q: How a spectrophotometer measure change of colour
1 answer
Q: What term defines an acid
1 answer
Q: Why is nitrogen fixiation necessary
2 answers
Q: Is iron softer than potassium
1 answer
Q: Why dissolution of NaCl in water is a physical change not a chemical change
2 answers
Q: Is phosphorous fluoride a covalent bond
1 answer
Q: What elements are found in magnesium chloride
6 answers
Q: What compound of silicon is used as dehydrating agent
1 answer
Q: What is the normal pH for anus
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Q: Why K shell shields the nucleus the most
2 answers
Q: What fluid gets rid of water urea and other wastes
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Q: What volume (in milliliters) of oxygen gas is required to react with 4.03 g of Mg at STP
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Q: Why is diamond clear
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Q: How long do you wait between two different inhalers
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Q: In n2o5 ionic or covalent bond
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Q: What is the chemical change in the following reaction Mg(NO3)2 plus 2NaOH Mg(OH)2 plus 2NaNO3
2 answers
Q: What statement best describes a controlled experiment
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Q: Is ivory soap an acid or base
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Q: How can you separate a compound into its elements
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Q: When metal oxide neutralizes acid what are produce
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Q: When metal neutralizes acid what are produce
2 answers
Q: What is the five part definition for an object be considered a mineral
1 answer
Q: What is the state of chlorine at -40 degrees
1 answer
Q: What are the solution properties between HCL and hc2h3o2
1 answer
Q: What is the word equation and balanced potassium burns in oxygen
1 answer
Q: How do you separate peas and sand
3 answers
Q: What will Reduce bacteria to a safe level soap toxins water at 82 degrees Celsius or toxins
1 answer
Q: What is the word equation of sodium astatine
1 answer
Q: What chemical reaction produces the sun's energy
8 answers
Q: When The chemical equation blow summarizes photosynthesis. write a similar equation for cellular respiration
1 answer
Q: What compound can be formed directly by cracking paraffin fraction from petroleum
1 answer
Q: What is the process of changing reaction rates called
1 answer
Q: How does gel electrophoresis work and what kind of information can you determine from gel electrophoresis
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Q: What happens when methane is burnt in air
1 answer
Q: What happen i you add a drop of blue dye to a container of water and after several hours the entire container turns light blue. Which statement is correct regarding this process
4 answers
Q: What happens to the nitrogen when organic material decomposes
1 answer
Q: Why cotton is more absorbent than silk
1 answer
Q: How can we separate zinc
1 answer
Q: In two or more complete sentences explain to someone who knows nothing about heat transfer how to construct and use a constant pressure calorimeter.
2 answers
Q: What compound is not likely to have ionic bonds
2 answers
Q: What will happen to the molecules in the water in a ice tray
1 answer
Q: Is the carbon-carbon a double bond
6 answers
Q: What is the Balanced equation for Cu(OH)2(s) heated
1 answer
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