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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: This painting medium uses turpentine as its solvent and chemicals to dilute blend and clean up
2 answers
Q: What is the pH of a solution with H plus 7.0 x 10-12
2 answers
Q: What is the definition of precipitate
4 answers
Q: Why is bauxite considered the main ore from which to extract aluminium
1 answer
Q: Is O2 2- a polar covalent bond
1 answer
Q: Is O3 a polar covalent bond
1 answer
Q: Pure liquid water is described as neutral because the water's pH is what
2 answers
Q: Pure liquid water has a pH of what
2 answers
Q: What can you say about the relative magnitudes of the lattice energy of lithium iodide and its heat of hydration
1 answer
Q: Jacques Alexandre Charles first attempted to use hydrogen gas in a .
2 answers
Q: What is the oxidation number of S in Li2SO4
1 answer
Q: A chemical equation for alkene reaction with bromine water in tetra chloride
1 answer
Q: What is the formula mass of Mg(NO3)2
1 answer
Q: What is a mixture that has two or more substances spread evenly throughout called
1 answer
Q: What is the charge on an ion formed by a Cs atom
6 answers
Q: 33P is a radioactive isotope of phosphorus. Can 33P be used to make a radioactive nucleotide
4 answers
Q: Chlorine (Cl) has an atomic number of 17. It often forms an ion by gaining 1 electron. What would its charge be
2 answers
Q: Sodium (Na) has 11 protons and 12 neutrons. What is its isotope notation
2 answers
Q: An atom of boron (B) has 5 protons and 6 neutrons. What is its mass number
2 answers
Q: What part of the atom has the greatest mass
10 answers
Q: What happens when dry HCl gas is passed through saturated solution of sodium
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Q: A 2.144-g sample of phosgene a compound used as a chemical warfare agent during World War 1 contains 0.260 g of carbon 0.347 g of oxygen and 1.537 g of chlorine. What is the empirical formula of this
2 answers
Q: 4) Chlorine casualties that require immediate treatment would most likely be suffering from
1 answer
Q: What are the names of the indicators that tell us if something was acid or alkaline
1 answer
Q: What value was there in predicting the properties for gaps in Mendeleev and table
2 answers
Q: 13ozs equals how many grams
1 answer
Q: Boron is one position to the left of carbon on the periodic table. The atomic number of carbon is 6. Given its position on the periodic table what is the atomic number of boron
2 answers
Q: What is the process for oil to be formed and why is there oil located in Oklahoma
2 answers
Q: An atom contains 55 protons and 78 neutrons. Which nuclide symbol is the correct symbol for the atom
2 answers
Q: In the redox reaction AgNO3 plus Na NaNO3 plus Ag how many electrons were transferred
2 answers
Q: What type of bonds holds atoms together in a water molecule
6 answers
Q: What are the only two elements that are liquid at 25 and deg C (room temperature)
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Q: Is oxygen is brittle
2 answers
Q: What happens when sodium reacts with fluorine to produce sodium flouride
1 answer
Q: What is the mass of a mug in grams
14 answers
Q: What are the hazardous and combustible products in acetone
1 answer
Q: How can you tell the number of covalent bonds an element can form
1 answer
Q: Isomers of trisoxalatochromate ion
2 answers
Q: Why the sodium ions and chloride ions in this lattice stay in place
1 answer
Q: Nucleotide chains of DNA are held together by covalent bonds are they nonpolar or polar
1 answer
Q: Does clean air take the shape of its container
1 answer
Q: Choose the correct formula determing specific
1 answer
Q: What is the verb form of vapour
2 answers
Q: Five metal samples with equal masses are heated to 200oC. Each solid is dropped into a beaker containing 200 ml 15oC water. Which metal will cool the fastest A) aluminum Eliminate B) copper C) gold D)
2 answers
Q: Does toluene dissolve sodium iodide
1 answer
Q: What temperature does laundry detergent freeze
1 answer
Q: Is iron sulphate a metal
2 answers
Q: What happens to the water in a copper sulphate solution after a week
1 answer
Q: In hydrolysis reactions compounds react with what
4 answers
Q: What is the measurement of 0.004 738 265 cm when rounded to three significant figures
3 answers
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