O MATTER Standard chemical and physical states of the elements Write a complete chemical formula, including physical state symbol, for each element listed below in its standard state. The first row of the table has been completed for you. element formula iron Fe(s) helium carbon bromine 五 x

Q: Naturally occurring cobalt consists of only one isotope, 59Co , whose relative atomic mass is…

A: For the two isotopes of cobalt as 59Co and 60Co given data ;  Relative atomic mass (A1) of 59Co =…

Q: b) Alpha iron (a-iron) is BCC crystal structure and has atomic weight of 55.85 g/mol and density of…

A: We know that : d = nM/(a^3*N)  Or, a^3 = (nM/dN) ....(1)  Here, n = 2, M = 55.85 gm/mol, d = 7.87…

Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 96.896.8 grams. Tia…

A: Formula used: Moles = Mass/ Molar Mass Number of atoms = Moles x Avagadro Number

Q: A compound contains 43.84 % carbon atoms, 3.65 % hydrogen atoms, and 8.68 % fluorine atoms by mass.…

A: Given : Mass percent of C = 43.84 % Mass percent of H = 3.65 % Mass percent of F = 8.68 % Assuming…

Q: The atomic masses of chlorine-35 (75.780%) and chlorine-37 (24.220%) are 34.969 amu and 36.966 amu,…

A: To calculate : average atomic mass of Cl

Q: How many trunks are found in one mole of elephants? Write your answer in scientific notation such…

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Q: He arranged elements into increasing atomic numbers and found that there is a periodic repetition of…

A:

Q: A 3.50-gram sample of Streptomycin powder was tested for its water content. If the water equivalence…

A: Since you have posted multiple questions and not specified which one to solve, we will solve the…

Q: Copper has two naturally occurring isotopes, Cu (isotopic mass 62.9296 amu) and Cu (isotopic mass…

A: Isotopes are pairs of compounds that have same atomic number but different mass numbers.As the…

Q: Is an igneous rock a mixture compound or element or none of the above.

A: Igneous rocks are formed by the solidification of the molten lava present in the earth crust.

Q: Question 7.KMT is based on the idea that particles of matter are in constant motion.  True  False

A: *According to kinetic molecular theory electron are small in size and undergo ramdom motion here and…

Q: Stainless steel is composed of iron, manganese, chromium, and nickel. If a 2.00 g sample was…

A:

Q: A copper atom has a mass of 1.06 × 10^-22 g and a penny has a mass of 2.5 g. Use this information to…

A: Number of atom present in one Mole is defined by Avogadro number which is 6.02 × 10^23 mol-1.

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.