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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 substance in acid rain makes more acidic than natural rainwater
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Q: What element should you look at frist in balancing the equation with the two products of carbon dioxide
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Q: Why did the potassium permanent crystals in Figure 7.12 on page 197 start to dissolve in water without being stirred or shaken
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Q: Is this true radioactive elements can undergo more than one decay or transmutation in order to form a stable nucleus
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Q: Is Noah a weak base
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Q: What us the pOH of a solution with OH 9.0 10 -7
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Q: What system a group of organs used for breathing in oxygen and getting rid of carbon dioxide.
1 answer
Q: What effect does adding soda to the water have solution rate
2 answers
Q: What is the pH of 0.5N NaOH
1 answer
Q: What is the purpose of adding a small amount of concentrated sulfuric acid into reaction mixturewhy
5 answers
Q: How can groundwater be treated
1 answer
Q: What are the disadvantages of using grease proof paper
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Q: What is the formulae for Flyash
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Q: How does zinc nitrate react with lead
10 answers
Q: What are monoamino monocarboxylic acids
1 answer
Q: What is phosphate phosphorus
2 answers
Q: Is the correct equation for the reaction below One molecule of methane gas reacts with two molecules of oxygen gas to form one molecule of carbon-dioxide gas and two molecules of water vapor.
7 answers
Q: Is The number of protons plus the number of neutrons in the nucleus of an atom known as the mass number
2 answers
Q: What is the limiting reactant of NaHCO3 plus HCl NaCl plus CO2 plus H2O
2 answers
Q: What is a true statements about metals
1 answer
Q: What atoms make up lithium
8 answers
Q: What method of separation where you can separate particles on the basis of size is called
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Q: What element was used as a target substance in the experiments by Irene Jolie Curie
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Q: What is the relationship among polar molecules and a hydrogen bond
1 answer
Q: How many litres of 12 percent sodium hypochlorite solution are needed to make 100 Litre of 2 percent sodium hypochlorite solution
2 answers
Q: What devices converts chemical energy into electrical energy
4 answers
Q: How valuble is coal
1 answer
Q: What is the word reaction for magnesium and sulfuric acid
2 answers
Q: Who is bendy
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Q: What is bonds between particles are weak is called
1 answer
Q: Is biodegradable a chemical property
3 answers
Q: How many total hydrogen atoms are there in the reactants of respiration
1 answer
Q: What is the element for hydrogen
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Q: What is the solubility definition
2 answers
Q: What is one in which one element pulls on the shared electrons more than the other element
1 answer
Q: Why does magnesium have 12 as an atomic number
1 answer
Q: Why is it important t o change the pipet tip after each sample has been placed into a well
2 answers
Q: What is the chemical name of O2Br4
2 answers
Q: What are the two gases called when methanol is burned
1 answer
Q: If you were a scientist developing a drug that would block viral replication which steps would you choose to block
2 answers
Q: What colour should the leaf turn when iodine is added
1 answer
Q: Why wool on burning gives smell to burning hair
1 answer
Q: What colour would a mixture of thymol blue and phenolphthalein go if you added hydrochloric acid
11 answers
Q: Is CuSO4 an ionic or covalent compound
2 answers
Q: What is the boiling point of chloroform at 600 mm Hg
1 answer
Q: Is CH4O an ionic or covalent
1 answer
Q: Is CH4O an ionic compound or covalent Compounds
2 answers
Q: What mixtures scatter a beam of light that passes through them-a phenomenon called the Tyndall effect
2 answers
Q: What is the difference between a irritant and a harmful substance
1 answer
Q: What are the substances on the right side of an equation called
12 answers
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