Recent Chemistry Questions

• What is a representative element?

  45 min ago - A representative element is an element that adds electrons to...

• What elements form negative to ions?

  46 min ago - These elements form negative ions: F- fluoride, O2- oxide, Cl...

• What is the most dangerous element?

  46 min ago - Plutonium is the most dangerous element to be handled. Most d...

• What are two physical changes of a candle burning?

  47 min ago - The physical changes in the candle is that the wax melts, the...

• Where does the drug cocaine come from?

  47 min ago - Cocaine is a white, crystalline alkaloid that is obtained fro...

• How do you sterilize water?

  48 min ago - Use chlorine to sterilize water. Let water stand until partic...

• What is atomic radius?

  48 min ago - The atomic radius of a chemical element is a measure of the s...

• What element is found in proteins but not in nucleic acids?

  48 min ago - Sulfur is found in proteins but not in nucleic acids (DNA). T...

• What is the amount of pressure times the volume of a given sample of gas at constant temperature?

  48 min ago - Pressure times the volume is a constant for a given gas sampl...

• Is this true or false an enzyme is a protein that acts as a catalyst in a chemical reaction that takes place in a living thing?

  49 min ago - Enzymes are proteins that catalyze (i.e., increase the rates ...

• How can the parts of a solution be physically separated?

  49 min ago - The parts of mixtures can be separated by physical means. Som...

• What is the formula for lithium Sulfide?

  51 min ago - The chemical formula for Lithium Sulfide is Li2S. ChaCha!

• What would happen to the carbon cycle if vast areas of forests are cleared?

  52 min ago - The carbon cycle would slow down if vast areas of forests wer...

• What is heat capacity in chemistry?

  52 min ago - Heat Capacity is the measurable physical quantity that charac...

• What is the balanced chemical equation for cellular respiration?

  53 min ago - The balanced chemical equation for cellular respiration is C6...

• Is nitric oxide supplement safe?

  53 min ago - In general, it's safe. L-Arginine is the precursor to Nitric ...

• What is the difference between metal and steel?

  53 min ago - Steel is a compound and is a metal. Metal is a broad classifi...

• What is the mass of one mole of oxygen-16?

  53 min ago - The mass of one mole of oxygen-16 is 16 grams. That is why th...

• What is the formula for force?

  53 min ago - The formula is Force = mass * acceleration, the common unit f...

• What are formula units?

  53 min ago - Empirical formula of an ionic or covalent network solid compo...

• What is a molecule with a single covalent bond?

  54 min ago - Chlorine can bond with another Chlorine to have a molecule wi...

• What happens when mixing concrete if you use oil instead of water?

  54 min ago - There is no information about anyone trying to mix concrete w...

• What is the abbreviation for sodium?

  56 min ago - The chemical symbol for the element sodium is Na. ChaCha-ask ...

• What is the theoretical yield of a reaction?

  56 min ago - The theoretical yield of a reaction is the amount of product ...

• What is normal cyanuric acid levels for a pool?

  56 min ago - The normal level of cyanuric acid is between 30-50 parts per ...

• What does the combined gas law mean?

  57 min ago - The combined gas law is a gas law which combines Charles's la...

• What is the ion name for the element barium?

  57 min ago - Atomic #: 56 Atomic Weight: 137.327 Melting Point: 1000 K (72...

• How many moles of carbon are in a 28.0g sample?

  58 min ago - The number of moles of carbon = mass/molar mass...number of m...

• What is the balanced chemical equation for photosynthesis?

  58 min ago - The equation of photosynthesis is as follows: 6CO2 + 6H2O + E...

• Why is there water in hookahs?

  59 min ago - Water cools done the smoke for more comfortable inhalation.In...

• What is bromthymol blue?

  59 min ago - Bromothymol blue is an indicator, a substance that changes co...

• What is the Normal Phase of Zinc?

  59 min ago - Zinc is a solid at room temperature. Thanks for using ChaCha!

• What is the mass of 1.50 mol of sodium, NA?

  59 min ago - 1.50 mol of sodium has a mass of 34.5 grams. Na has a molecul...

• What is the temperature at which a liquid becomes a solid?

  1 hr ago - The freezing point of a liquid depends on what kind of liquid...

• What is the density of water at a temperature of 26?

  1 hr 1 min ago - Water at a temperature of 26 degrees C has a density of 0.996...

• What long chains is molecules of dna composed of?

  1 hr 1 min ago - DNA consists of two longchains of nucleotides twisted intoa d...

• What are the physical properties of the element zinc?

  1 hr 2 min ago - Zinc is a bluish-white, lustrous metal. It is brittle at ordi...

• What is the total number of neon atoms contained in 20.2 grams of neon gas?

  1 hr 2 min ago - There are around 600 number of neon atoms contained in 20.2 g...

• What is the chemical name for Mg?

  1 hr 2 min ago - Name: Magnesium Symbol: Mg Atomic Number: 12 Atomic Mass: 24....

• What is the sugar/phosphate of dna?

  1 hr 2 min ago - The sugar in DNA is 2-deoxyribose, which is a pentose (five-c...

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