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Chemistry
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.
221k
Questions
Q: Give an example from the table above of two ions that can form an ionic bond
1 answer
Q: What is the net ionic equation for pb(no3)2 and ki
1 answer
Q: What is the net ionic equation for pb(no3)2 and naoh
1 answer
Q: What is the net ionic equation for pb(no3)2 and na2co3
1 answer
Q: Compare and Contrast and How are a substance and a solution similar How are they different
1 answer
Q: Who can you determine that a coin is not pure silver if you know the mass and volume of the coin
1 answer
Q: How is hydrochloric acid important to maintain the heath of the human body
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Q: How does potassium become a potassium ion with a plus 1 charge
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Q: Is soduim bad for you
2 answers
Q: Because it is the most poisonous substance known plutonium can no longer be usedas a source of
1 answer
Q: Which one if the following is an example of a composition reaction
2 answers
Q: H2S intermolecular force
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Q: What is the second most common element after oxygen
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Q: What happens when hydrogen peroxide reacts with yeast
1 answer
Q: Geometric isomers are molecules that .
2 answers
Q: What belongs in the blank space of the following chemical equation for the burning of fossil fuels fossil fuel plus carbon dioxide plus water plus heat
1 answer
Q: What is a rock that yields oil when heated
2 answers
Q: How many moles of fluoride ions are present in 10.4 g of NaF
2 answers
Q: When two different types of atoms share electrons to complete an octet what type of bond is formed
2 answers
Q: What is the complete ionic equation for NaOH(aq) plus HCI(aq) - H2O(I) plus NaCI(aq)
1 answer
Q: Where are all the products of a hydrocarbon combustion reaction
2 answers
Q: What is needed to balance the reaction Cl2 plus Kl KCl plus l2
1 answer
Q: How is a colour wheel made of
1 answer
Q: If a reaction starts with a 6 atoms of a solid and 12 atoms of a gas what is known about the product
2 answers
Q: Minerals are classified according to their .
2 answers
Q: What is the reaction SO2 plus H2O H2SO2 not balanced
1 answer
Q: Bromine belongs to the group of the periodic table.
2 answers
Q: One mole of which element has the smallest mass
8 answers
Q: What kind of reaction is Kl(aq) plus AgNO3(aq) Agl(s) plus KNO3(aq)
2 answers
Q: Why should the total amount of liquids introduced into a test tube not exceed half the capacity of the test tube
1 answer
Q: What can acid can do to metal stone and other substances
1 answer
Q: What kind of reaction is 2H2O2 2H2O plus O2
5 answers
Q: Property for plasticine
2 answers
Q: Covalent bonds are sometimes shown using electron dot diagrams.
2 answers
Q: How does an atom of potassium-41 become a potassium ion with a plus 1 charge
1 answer
Q: How does an atom of potassium-41 become a potassium ion with a plus charge
1 answer
Q: Write the chemical equation representing the resrstion of ethene from ethanol
1 answer
Q: Write the chemical equation representing the preparation of ethene from ethanol
1 answer
Q: Name the two elements which are present both in cng and petroleum
1 answer
Q: What is the balanced chemical equation for the synthesis of sodium bromide from sodium bromine
2 answers
Q: What would cause the greatest increase in the motion of molecules in a system
2 answers
Q: A liquid dissolved in a gas results in a solution that is what
1 answer
Q: Sodium and chlorine can bond together. Sodium gives chlorine a needed electron. What is chlorine's charge after accepting the electron
2 answers
Q: Why is hydrogen listed in column 1 even though it is not a metal
9 answers
Q: Through what method can mercury be absorbed
1 answer
Q: What is an example of incomplete combustion of sucrose
2 answers
Q: Calculate the osmotic pressure of a solution containing 17.85 mg of hemoglobin in 15.8 mL of solution at 22 and 8728C . The molar mass of hemoglobin is 6.5 and times104 gmol.
1 answer
Q: What is a good sentence for electron dot diagram
1 answer
Q: Gold colored ring has a mass of 18.9 grams and a volume of 1.12 ml. Is the ring pure gold (The density of gold is 19.3 gml.) Explain.
1 answer
Q: An element that has the electron configuration Ne3s23p5 is in which period
2 answers
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