How many sulfur atoms do you need for this reaction to produce 1 molecule of CS₂ and 2 molecules of H₂S? ? 31 Check Os 1 CS₂ 2 H₂S 1 CH4 + a. 1 b. 4 X c. 2 d. 3

Q: Determine the percent composition by mass of all elements in C,H Br.

A: Given :- chemical formula of compound = C6H11Br  To determine :- percent by mass of each element…

Q: What is the mass grams that are in 6.70 x 1025 molecules of 1,?

A:

Q: How

A: We are given The mass of cadmium = 1.0g  To find the moles of cadmium = mass / molar mass = 1.0…

Q: How many atoms are in 185 g of calcium? atoms 185 g

A: Calculate number of atoms in 185 g Calcium ?

Q: 4. Find the mass of 3.66 mol of N2, nitrogen gas.

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many H atoms are present in 7.52 g of propane, C3H8?

A: The given data contains, mass of propane = 7.52 g.

Q: How many molecules are in 502.1 g of LIF?

A: Mass of LIF = 502.1 g Molecular weight = 25.939 g/mol Molecule= ?

Q: How many molecules are in 75.8 g of C6H12O6 ?

A:

Q: How many moles of NH3 are there in 1.93 grams of NH3?

A: No. Of moles = gram weight / molar mass Molar mass of NH3 = 17

Q: How many moles of tin, Sn are needed to give 1.39x1022 tin atoms? Starting Unit (include substance):…

A:

Q: Determine the empirical formula for each substance. A dead alkaline battery is found to contain a…

A:

Q: How many atoms of Cu are present in 35.4 g of Cu?

A:

Q: What is the molecular mass of CH¿I? amu

A: Molecular mass is defined as the is the mass of a given molecule. The unit of molecular mass is amu…

Q: How many atoms are in 46 g of bromine?

A: Given : Mass of bromine = 46 g Molar mass of bromine i.e Br2 = Atomic mass of Br X 2 = 79.9 X 2 =…

Q: The number of copper atoms in 2.35 bf of copper wire ?

A: According to the Avogadro's law, 1 mole of each substance contains the Avogadro's number, 6.022×1023…

Q: How many atoms are present in 0.430 g of gold?

A: Given, mass of Gold = 0.430 g  Molar mass of Gold = 196.97 g/mol Number of Atoms = ?

Q: How many molecules are there in 12.5 g of NaOH

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: What mass of ZnCO3 contains 3.11x1022 O atoms?

A:

Q: 8. How many grams are in 2.55 x 1024 molecules of KCI?

A:

Q: How many carbon atoms are in 36.03 g of carbon?

A: Given 36.03 g of Carbon  To find Number of atoms in the given carbon sample

Q: Element Atomic Weight (g/mol) Percent Composition Ni 58.6934 36.3% Fe 55.845 17.3% As 74.9216 46.4%…

A: The percentage composition of each element in the compound is given as, Assuming 100 g of the…

Q: 35. Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

A: Percentage by mass of any element in its compound is the amount of that element divided by the total…

Q: What mass of Chromium metal would contain 5.00 x 1020 atoms of Cr? 0.0432 g

A:

Q: how many atoms of Fe are in 26.9 g Fe?

A: Given, the mass of iron Fe =26.9 gramwe are asked to calculate the number of atoms of iron Fe in the…

Q: What is the percent of N in N2H4?

A: Molecular weight of N = 14 g/mol Molecular weight of  H = 1 g/mol Molar mass of N2H4 = 32 g/mol…

Q: How many molecules are in a sample of pure benzocaine, if a sample weighs  550mg?

A:

Q: 4. What is the mass percent composition? Why is it useful?

A: Mass percent of each type of element in a compound is called the mass percent composition of the…

Q: How many molecules are in 16.1 g of C8H10?

A: Mass of C8H10 = 16.1 g

Q: 3.2*10^24 atoms O to molecules O3

A: A molecule is composed of two or more than two atoms. The number of molecule can be determined by…

Q: number of atoms in 5.12 g P

A: number of atoms in 5.12 g for  Phosphorus

Q: A compound the formula TeCln has a formula mass of 269.41 amu. What is the value for n in the…

A: TeCln formula mass = 269.41 amu Te formula mass = 127.6 amu Cl formula mass =  35.453 amu

Q: 7. What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202 g out of a…

A: The mass percent of the SiO2 in the given sample can be calculated by knowing the mass of the sample…

Q: Cesium (Cs) is element 55 on the pe 3.95x1023 atoms of Cs. Calculate th mol Cs

A: Given that, Atoms of CS= 3.95 ×1023 atoms  Then,

Q: simplest (empirical) formula of CuxCly

A:

Q: How many atoms in 0.11  g CH4

A: Number of particles in a sample can be calculated by multiplying the number of moles by Avogadro's…

Q: What is the mass of 7.0 eq calcium hydroxide?

A: The molar mass of a compound divided by is valence factor (n-factor) is basically designated as…

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.