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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: What are displacement reaction give example
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Q: What is the name of Pb4O3
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Q: What is the site where storage nutrients are
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Q: What is an acidic group
1 answer
Q: What is made up of two or more atoms linked together by chemical bonds
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Q: What is the net ionic equation for KCl (aq) plus Pb(NO3)2 (aq) --- and gt KNO3 (aq) plus PbCl2 (s)
1 answer
Q: What is the test for sodium and potassium when both are present
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Q: What is the use of indicators in measuring for neutralization
1 answer
Q: How do you prove that glucose do not raise the melting point of stearic acid
5 answers
Q: If calcium carbonate reacts with acid how can you increase the rate of reaction
1 answer
Q: How will you know if starch is present
2 answers
Q: What can particles in a solid do
2 answers
Q: Is chutney a acid or a base
1 answer
Q: How much 0.075 M NaCl solution can be made by diluting 450 mL of 9.0 M NaCl
1 answer
Q: Why might the mass appear to go down during some reactions
2 answers
Q: What molecule provides to body with the most energy
1 answer
Q: When Energy is absorbed from the surroundings and the temperature of the surroundings decreases' What reaction is this
2 answers
Q: Is caustic soda heavier than water
1 answer
Q: Do bogs have oxygen
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Q: When sodium and potassium are kept in open air they catch fire
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Q: What colour is iron sulfate solution
1 answer
Q: When To be considered fresh water water must contain salt in a concentration .
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Q: What happens when plants lack potassium ions
1 answer
Q: What Fluorine and water balanced equation
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Q: What is the percent by mass of oxygen in MgO
1 answer
Q: Why are most organic compounds insoluble in water
6 answers
Q: Is An acid is a substance that forms hydroxide in a water solution
2 answers
Q: How many moles are in 28.85 grams of Argon
1 answer
Q: Why chloroform and ethanol dissolved with coconut
1 answer
Q: When zinc metal is placed in a solution of hydrochloric acid hydrogen gas and a zinc (II) chloride solution are formed. The container gets warm
1 answer
Q: What are the two uses of sulphur
1 answer
Q: Is FeO a saltbase or acid
1 answer
Q: What gas evolved when potassium nitrate crystals are heated with concentrated sulphuric acid
1 answer
Q: What are the two eletrodes for a voltaic cell
1 answer
Q: What element group does not react with other elements
1 answer
Q: What is an acid Select all that apply
1 answer
Q: What process the mercury vapour produces light Inside a fluorescent tube
1 answer
Q: What describes the visible light given off by a chemical reaction
1 answer
Q: What litmus paper would you use to test for an acid and what is the color change
2 answers
Q: What is solution formula
2 answers
Q: What was the rationale for use of the atomic bomb
1 answer
Q: How do petroleum and natural gas mainly form
1 answer
Q: What type of bond is B-Cl
1 answer
Q: How many elements are in Zinc sulfide
1 answer
Q: What do you predict will happen when a crystal of potassium nitrate is added to the saturated solution as it is cooled What might happen if no crystal were present
1 answer
Q: What is the oxidation number of KNO2
3 answers
Q: What Chemical change examples
2 answers
Q: What is the capability to act as a base or an acid
1 answer
Q: Is chalk less dense than salty water
2 answers
Q: What device that turns chemical energy into electrical energy
1 answer
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