Chemistry

A chemical compound is a chemical substance that is made of two or more atoms of different elements that share a chemical bond. A chemical formula represents the ratio of atoms per element that...

C6H6 is the chemical formula of benzene. It is a molecule comsisting of 6 carbon atoms and 6 hydogen atoms. When benzene undergoes combustion in air, the carbon and hydrogen atoms combine with the...

Covalent compounds are formed between nonmetals. Examples of nonmetals H , O , N , C , S , P , F , Cl , Br , I. Examples of covalent compounds: - CH2O, H2O etc., Ionic compound is formed between a...

A homogeneous mixture and a heterogeneous mixture are first and foremost both mixtures. That means no chemical bonding has occurred between the substances within the mixtures. They can be...

You cannot directly convert grams to atoms. First you must covert your grams to moles, then you can take the moles and covert to atoms. If you take your 878 grams of fluorine and then look at the...

Krypton has an atomic number 36, so it has 36 electrons. Bromine with an atomic number of 35 acquires one electron to attain 36 electrons. This makes it isoelectronic with krypton. The anion of...

Methanamide (HCONH2) is also called formamide. The standard Lewis structure notation involves a single bond between the hydrogen and the carbon, a double bond between the carbon and the oxygen, a...

There are more than 1000 compounds we use in our daily lives few are listed below.Sodium chloride (NaCl) known as table salt used for cooking Sodium hydrogen carbonate (NaHCO3) known as baking...

The chemical formula of water is H2O. One molecule of water has 2 atoms of hydrogen and one atom of oxygen. 1 mole of water requires 1 mole of hydrogen (H2) and 0.5 moles of oxygen (O2). The molar...

Separating a mixture of salt and sugar is actually quite easy. Athough sugar is soluble in any type of alcohol, salt on the other hand is not. If you want to separate the two, first mix both salt...

The volume of a given amount of gas is related to the temperature and pressure by the Ideal Gas Law by P*V=n*R*T or V = k*T/P The volume is directly proportional to the temperature and inversely...

The first ionization energy of potassium is 419 kJ/mol while calcium's is 376 kJ/mol. Note that the first ionization energy is the amount of energy needed to remove an outer electron from the...

The chemical equation when aluminum reacts with oxygen is: 4Al + 3O2 --> 2Al2O3 3 moles of O2 react with 4 moles of Al to give 2 moles of Al2O3. The ratio of the number of moles of aluminum to...

The reaction between carbon dioxide and water to form hydrogen carbonate is an example of a bond-reorganization reaction. As one of the reactants is water it is also referred to as a hydration...

We should be careful when defining "properties" - chemical properties are probably the ones that an instructor would be taking into consideration. By contrast, elements of the same group have very...

Aluminum reacts with `H_2SO_4` to form `Al_2(SO_4)_3` . The equation of the chemical reaction is: `2Al + 3H_2SO_4 -> Al_2(SO_4)_3 + 3H_2 ` 2 moles of aluminum react with 3 moles of hydrogen...

You are only allowed to ask one question at a time so I edited down your question accordingly. We need to convert the following to a balanced chemical equation: copper (2) carbonate plus...

We can calculate the concentration of H+ ions in a 0.1 M solution of acetic acid by using the pKa or ionization constant which for any compound is the negative logarithm of the equilibrium...

The chemical name for table sugar is sucrose (C12H22O11). To classify this compound first we have to know what happens when this compound is in the solution. If it is an acid, it will release...

Chemists use many different tools and technologies to perform their work. The study of chemicals requires very accurate equipment that can measure precise weights, analyze reactions and color...

A 4 M solution of lithium bromide has to be made with 100 grams of lithium bromide. A solution with a concentration of 1 M has one mole of the solute dissolved in one liter of the solution. The...

Classifying elements is necessary in order to determine their nature and the possible reactions. We can classify them according to phases: Solid, liquid and gas. Most elements in the periodic table...

Palladium has an atomic number of 46 and has 46 electrons orbiting the nucleus. The electronic configuration of Palladium is 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2, 4p6, 4d10. The noble gas which is...

The concentration of a solution can be expressed in many way, one of them is molarity or the molar concentration. If a solution has a molarity of one, it has one mole of the solute in every liter...

Chromatography is a very common lab technique that is used to separate different components of a complex mixture. It takes the advantage of differential solubility of different components of a...

The reaction of copper (II) sulfate CuSO4 and ammonium hydroxide NH4OH will yield Copper (II) hydroxide Cu(OH)2 and ammonium sulfate (NH4)2SO4. The chemical equation for this reaction would be...

Phosphorus and fluorine together form phosphorus trifluoride, or PF3. PF3 has trigonal bipyramidal molecular geometry and can be polar or nonpolar depending on the binding locations of the flourine...

The equation of the chemical reaction between potassium (K) and oxygen (O2) is: 4K + O2 --> 2K2O From the equation it is seen that 4 moles of potassium react with with one mole of oxygen gas...

Copper Sulfate can dissolve in water because water is a polar solvent. A polar solvent is one where the molecules that make up the solvent have a charge that is unequally distributed in the...

Nitrogen oxides, including NO and NO2, are produced as a result of combustion in a car engine. Pure combustion takes hydrocarbons (gasoline) and pure oxygen (O2) and produces CO2 and H2O. But...

In ionic bonds one atom is positively charged (the atom that gives its electrons), and the other atom is negatively charged (the atom that receives the electrons); therefore, it is the opposite...

The reaction between sadium chloride and the hydrochloric acid can be illustrated by, NaOH + HCl --> NaCl + H2O so here 1 mole of NaOH reacts with 1 mole of HCl. Hence it is required to convert...

You can set up stoichiemetry using the following equation: (15.6 g MgF2) x (38g F / 62g MgF2) x (6.022x10^23 / 19gF) = 3.03 x 10^23 molecules of F or 1.52 x 10^23 molecules of F2

A 3.00 M solution of sodium chloride (NaCl) has 3 moles of NaCl in every liter of the solution. To find the mass/volume of the 3.00M solution, we must determine the mass of a single mole of NaCl...

Vanadium (V) oxide (V2O5) is used as a catalyst for the oxidation of sulfur dioxide to sulfur trioxide. It is able to catalyze this reaction because it releases oxygen (O2) when heated up. The...

The empirical formula of the compound that we have to determine is CH. The molecular mass of the compound is given by 78.110 amu. The atomic mass unit or amu is defined as 1/12 the mass of the...

The limiting reactant in a chemical equation is the reactant that is completely consumed when the chemical reaction takes place. As a result the reactant determines for how long the reaction takes...

The molar concentration of the ions in the form moles/liter is provided for the given solutions. A solution of ammonium sulfate (NH4)2SO4 with a concentration 0.15 M has a NH4 ion concentration of...

It is not possible to accurately identify an element given only the number of neutrons. All atoms are made of three particles: electrons, protons and neutrons. The number of electrons is equal to...

Hello! Aqueous solutions is a kind of solution where in the solvent is water. It is commonly labelled as (aq) after the compound. For example HCl (aq). This also means that the solutes is...

The concentration of a solution can be expressed in terms of its molarity (M). A solution with a molarity of one has a concentration of one mole of the solute in every one liter of the solution....

The compounds you would like to know the names of are AgNO3, K2S, BaS, Agl and Kl. Here keep in mind that Ag is silver, K is potassium, B is barium and K is potassium. The cation NO3 is called...

Technically speaking, alpha and beta decay are both types of nuclear fission. Fission is the breaking down of an atom's nucleus into smaller parts. Specifically, alpha decay is the breaking down...

Atoms are made up of three types of particles; these are electron, proton and neutron. The number of electrons and protons in any atom is the same as these particles have an electrical charge of...

Sulfites are chemical compounds that have the sulfite ion which is SO3-- with a valence of 2-. Iron can form chemicals in which it is capable of existing in many oxidation states ranging from -2 to...

Every chemical reaction is either endothermic (heat absorbing) or exothermic (heat producing.) Capital H in chemistry (not to be confused with the element Hydrogen!!) will be found with reaction...

Bleach is Sodium Hypochlorite (NaOCl). It is made industrially by the Hooker Process where Chlorine Gas is reacted with Sodium Hydroxide in a cold electrolytic cell following the equation: Cl2...

An exothermic reaction takes place between any two atoms if the resulting molecule has a lower enthalpy than the sum of the enthalpy of the two atoms. The atom of sodium has one electron in its...

Boyle's law states that for a fixed amount of gas in an enclosed system at constant temperature, pressure and volume are inversely proportional. In other words, when one of the two variables is...

In a blast furnace, which is generally used to obtain pure iron from its ore, the following reactions take place. C + O2 --> CO2 + Heat C + CO2 --> 2CO Fe2O3 + 3CO --> 2Fe + 3CO2 Fe2O3 +...