The illustration to the left represents a mixture of phosphorus ( orange ) and fluorine ( green ) molecules. If the molecules in the above illustration react to form PF3 according to the equation P4 + 6 F2 → 4 PF3 ,

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: Calculate the mass in grams of a sample of NO2 that contains 1.000 x 10^25 molecules.

A:

Q: Write a balanced equation for the combustion of gaseous propane (C3H8), a minority component of…

A: Propane is a flammable gas and burns easily in the presence of enough oxygen. The combustion of…

Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

A:

Q: 3 FeS2   +  11 O2   →  Fe3O4   +  6 SO3 100 g of iron sulfide was reacted with excess oxygen,…

A: 3 FeS2   +  11 O2   →  Fe3O4   +  6 SO3 Atomic masses Fe=56; S=32, O=16 Molecular mass of…

Q: what is the weight in grams of 4.30 x 10^14 CF4 molecules?

A:

Q: How many H atoms are there in (2.22x10^2) grams of NH3?

A: The answer to the following question is given as:

Q: late the mass in grams of a sample of NO2 that contains 1.000 x 1025 molecules.

A:

Q: Cryolite, Na, AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: The first step in this problem is to identify the limiting reactant, which is the reactant that will…

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: Weight of Fe = 575 gm

Q: White phosphorus (P4) is used to produce phosphorus oxides, such as P4O10. How many kilograms of…

A:

Q: (3b-101) Balance the following equations (be sure to first convert any chemical names into…

A: In a balanced reaction, the number of atoms of each kind of element is same on both sides.  Now, in…

Q: Suppose the reaction Ca 3(PO 4) 2 + 3H 2SO 4 → 3CaSO 4 + 2H 3PO 4 is carried out starting with 149 g…

A:

Q: 4 NH3 + 7 O2 → 4 NO2 + 6H2O If 0.36 moles of water was produced, how many moles of  NO2 would also…

A:

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: 2. What is the mass (in grams) of 7.11 X 102 molecules of tetraphosphorous trisulfide?

A: Given, number of molecules = 7.11×1022 Avogadro's constant = 6.022×1023 molecules.mole-1

Q: During the 1950s, pentaborane-9 was tested as a potential rocket fuel. However, the idea was…

A:

Q: Calamine is a naturally occurring zinc silicate that contains the equivalent of 67.5% zinc oxide,…

A: Using mole concept we can easily determine how much reactants  is used or composition of elements in…

Q: KC1O3 (s) +P.(s)P0,(s) + KCl(s) (unbalanced)

A:

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A:

Q: How many H atoms are there in (3.80x10^2) grams of H2O?

A: Number of moles = Mass/Molar mass Number of atoms in 1 mole = 6.0224 x 1023 Molar mass of water =…

Q: Use the balanced chemical equation below to calculate the number of grams of iron(II) phosphate that…

A:

Q: If the chemical reaction in question #3 only had a 75% yield, then how many grams of nitrogen gas…

A: Hydrogen gas reacts with nitrogen gas to form ammonia. The equation for the balanced chemical…

Q: 4. How many moles of water are present in a 20.00 gram sample of lithium permanganate, LiMnO4-3H2O?

A: by using mole concept we easily determine the mole of element are present in reactent and products.

Q: How many grams of O2 will be consumed during the formation of 13.67 grams of Fe2O3? Report your…

A: Mass of Fe2O3 = 13.67 g

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: The reaction taking place is given as, => Fe3O4 (s) + CO (g) → Fe (l) + CO2 (g) Given: Mass of Fe…

Q: If 6 moles of Si and 6 moles of N2 are combined in a reaction flask, what remains in the reaction…

A:

Q: For the reaction 2HNO3 + Mg(OH)2 → Mg(NO3)2 + 2H₂O, how many grams of magnesium nitrate are produced…

A: Mass of nitric acid(HNO3) = 4 gMolar mass of HNO3 = 63.01 g/molMolar mass of Mg(NO3)2 = 148.31…

Q: Consider the following equation: KOH(s) + CO₂(g) → K₂CO₃(s) + H₂O(l) Calculate the mass in grams of…

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Q: mass

A:

Q: About how many MOLES of aluminum are present in 152.89 grams of Al2O3?

A: Moles of a compound=given mass of the compoundmolar mass of the compoundMolar mass of Al2O3 is…

Q: What kind of molecule can you make by moving Cl = Chlorine and Mg=Magnesium?

A: Combination reaction is a type of synthesis reaction in which two or more atoms or molecules…

Q: A Group 2 metal with an electron configuration of [Ne]3s2 combines with fluorine (F2) to produce a…

A:

Q: Write an equation  Ammonium sulfate is a fertilizer. If one adds 2.00 g of ammonium sulfate…

A: We need to write an equation and calculate (a) the mass of nitrogen, and (b) the number of cations…

Q: What is the maximum mass (in grams) of Magnesium Phosphate, Mg3(PO4)2, that can be obtained from…

A:

Q: If 5.467 g of KAl(OH)4 was the limiting reagent in the synthesis of Alum, calculate the mass of Alum…

A: Mass of  KAl(OH)4  = 5.467 g  Given that yield of reaction is 98.00 %  We need to find mass of Alum…

Q: Carborundum is silicon carbide, SiC.  It is prepared by the reaction of pure sand, SiO2 with carbon…

A:

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.