Recent Chemistry Questions

• What type of bond has an electronegativity greater than 1.7?

  19 min ago - A carbon bond has an electronegativity of 2.5 and hydrogen ha...

• What energy change occurs when a candle burns?

  19 min ago - The transformation is an exothermic chemical reaction (chemic...

• What is a precipitation reaction?

  20 min ago - A precipitation reaction is a reaction in which soluble ions ...

• What is the percent composition of oxygen in h2o?

  20 min ago - Relative molecular mass of oxygen atom = 16 Relative molecula...

• What is an expression in which symbols and formulas are used to represent a chemical reaction called?

  20 min ago - A chemical equation is the symbolic representation of a chemi...

• What is the chemical formula for pernitric acid?

  21 min ago - Molecular formula, C2H4O3 ... Peracetic acid (also known as p...

• Is aluminium an alkali metal?

  21 min ago - No. Alkali metals are soft, and can be easily cut with a knif...

• What is the mass percentage of chlorine in NaCl?

  22 min ago - Atomic mass of NaCl is 22.98 + 35.45=58.43. 35.45/58.43=.6067...

• What is the ion tin?

  22 min ago - An ion is an atom or molecule in which the total number of el...

• What is the freezing point of coconut milk?

  22 min ago - The freezing point of cream (and I'm guessing coconut milk is...

• What are the Side effects of NO3?

  22 min ago - Nitrate toxicosis in humans occurs through enterohepatic meta...

• Does boiling water kill all bacteria?

  22 min ago - Boiling water kills most bacteria, but not all, especially in...

• Does diesel explode?

  23 min ago - Diesel can explode and is flammable at certain temperatures a...

• What tempature dos alchol freez at?

  23 min ago - The freezing point of ethyl alcohol is -117.3C, or -179.14F. ...

• What is gold made of?

  23 min ago - White gold is an alloy of gold and at least one white metal u...

• Why is the quantu-mechanical model of the atom important for understanding chemistry?

  23 min ago - Quantum mechanics, also known as quantum physics or quantum t...

• Which gas deviates the most from ideal behavior?

  24 min ago - At low temperatures or high pressures, real gases deviate sig...

• What is NO3?

  24 min ago - Nitrate (NO3) is a naturally occurring form of nitrogen (N) w...

• What is the chemical formula for copper(2) hydroxide?

  24 min ago - Cu(OH)2 is the chemical formula for copper hydroxide. We like...

• What is an a particle in chemistry?

  24 min ago - A particle is a very small or the smallest possible amount, t...

• How do you make water?

  25 min ago - Water (H2O) can be formed using gaseous hydrogen and gaseous ...

• What is the chemical compositon of water?

  25 min ago - The chemical composition of water is H2O which is 2 atoms of ...

• How many neutrons are in bromine?

  25 min ago - The number of neutrons in Bromine is 45. The number of proton...

• How does a change in temperature affect the pressure of a gas when its volume is kept constant?

  25 min ago - The pressure of any gas is affected by temperature. As the te...

• Why is the size of a sodium ion less than that of a sodium atom?

  25 min ago - The reason is that the more electrons you have, the more read...

• What are the 3 components of a nucleotide?

  25 min ago - The three parts of a nucleotide are a nitrogenous base, phosp...

• What is the neutral particle that is formed when atoms share electrons?

  26 min ago - A molecule is the neutral particle that is formed when atoms ...

• What is the name of SNCl2?

  26 min ago - SNCl2 is Tin(II) chloride. Thanks for using ChaCha!

• When does a cell duplicate DNA?

  26 min ago - Before a cell can divide, it must duplicate all its DNA. In e...

• How are the alkaline earth metals different from the alkali metals?

  27 min ago - They react readily with water & are softer but they are excee...

• What is the molar mass of Ca OH to?

  27 min ago - The molar mass (molecular weight) of Ca(OH)2 is 74.0932 g/mol...

• Does ammonia contain nitrogen?

  27 min ago - No, ammonia does not contain nitrogen. The two when added tog...

• What is the difference between an element and a compound?

  27 min ago - An element is a substance consisting of one type of atom (eg ...

• What forms when water vapor condenses in the atmosphere?

  27 min ago - Condensation is the process by which water vapor in the air i...

• How can matter be classified as substances, elements, compounds, and mixtures?

  27 min ago - Determine if the matter mixture includes an element. An eleme...

• How many nucleotides long is a tRNA molecule?

  27 min ago - The acceptor stem is a 7-base pair (bp) stem made by the base...

• What is the molar mass of C2H5(OH)?

  27 min ago - The molar mass of Cu (Copper) is 63.5463 g/mol. Molar mass is...

• What are two ways a mineral can form?

  28 min ago - Some minerals form when molten rock, cools and atoms bond tog...

• What is the difference between adhesion, cohesion and capillarity?

  28 min ago - Water molecules are attracted to each other and therefore sho...

• How many nucleotides make up a typical tRNA molecule?

  28 min ago - We are already working on that Question for you and will send...

Featured Quiz

What kind of car are you?