Balance the following chemical equations, making sure to apply the principle of the law of conservation of mass.

Q: Lithium has two stable isotopes, 6Li and 7Li. If a sample is composed of 48.0% of the lighter…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: 3. In a chemical atomic mass determination, the tin content of 3.7692 g of SnCl, was found to be…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A chemical equation is shown below. KNO3 → KNO2 + O2 What are the coefficients that should be…

A: The reaction taking place is given as, => KNO3 -----> KNO2 + O2

Q: A compound of molar mass 229 g/mol contains only carbon, hydrogen, iodine, and sulfur. The analysis…

A: The ratio of the mass of carbon to hydrogen = 6:1 The ratio of moles of carbon and hydrogen =

Q: Why must proper chemical equations be balanced?  Select all that are correct.       A balanced…

A: We will answer this question using law of conservation of the mass.

Q: 2. The reaction between creates the product aluminum bromide. What equation includes the correct…

A: Hu

Q: Al + 02 → Al203

A:

Q: What is the significance of 'atom economy'? How is this value calculated for a chemical reaction?

A:

Q: Sulfuric acid is a component of acid rain formed when gaseous sulfur dioxide pollutant reacts with…

A: Gaseous sulfur dioxide reacts with gaseous oxygen and liquid water to form aqueous sulfuric acid.…

Q: . He can tell from elemental analysis that the polymer is made up of only three elements: carbon,…

A: To solve this we have to consider the mass of polymer = 100.0g  Then  Mass of C = 56.45 g  Mass of H…

Q: An element consists of 4.35% of an isotope with mass 49.946 u, 83.79% of an isotope with mass…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: cond A B C D sketch of molecules in it H H C1O H-Ö C нӧ- H H :O: H H H-Ö H-Ö C H C || :0: C O: 010…

A: first, we have to find empirical formula of the given compounds

Q: Naturally occurring iron contains 5.82% 54Fe, 91.66 % 56Fe, 2.19% 57Fe, and 0.33% 58Fe.  The…

A: Answer:- This question is answered by using the simple concept of calculation of average atomic mass…

Q: Matter is neither created nor destroyed in a chemical reaction. Thus, the mass of the products of a…

A:

Q: Write the balanced chemical equation for the reaction of aqueous sodium carbonate with aqueous…

A: A balanced chemical equation is the one that consists of equal number of every atom of an element at…

Q: Write an equation for the following reactions. Remember the gases of elements such as oxygen are…

A: The balanced reaction and products of reaction can be written from nature of reactants.

Q: An element consists of 0.19% of an isotope with mass 135.907 amu, 0.25% of an isotope with mass…

A:

Q: KNO3 → KNO2 + O2 What are the coefficients that should be added to balance this equation? Use…

A: To balance the above unbalanced equation put the coefficient 2 before KNO3 and KNO2. 2KNO3…

Q: Natural rubidium has the average mass of 85.4678 u and is composed of isotopes85Rb (mass = 84.9117…

A: Mass of the Rb = 86.913 amu. Given data: 85.4678 amu is average mass of the Rb Mass of 85Rb =…

Q: Some of the formulas could be either molecular or empirical formulas; however, some can only be…

A: empirical formula of a compound gives the simplest ratio of the number of different atoms present,…

Q: Balance the following chemical equation (if necessary):

A: In general chemical reactions can be written in equation form, it is called chemical equation…

Q: Identify the scientific law that is used in the process of balancing chemical equations. the law of…

A: 1. Given that : We have to identify the scientific law that is used in the process of balancing…

Q: Write balanced chemical eauations for the following reactions. The reaction of aqueous iron(III)…

A:

Q: Chemical formulas can be written as empirical formulas, molecular formulas, or structural formulas.…

A: The solution is given below -

Q: If green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white…

A: We are given that, Green spheres represent chlorine atoms. yellow-green spheres represent fluorine…

Q: Balance each of the following chemical equations. 1.  CO2(g)+CaSiO3(s)+H2O(l)→SiO2(s)+Ca(HCO3)2(aq)…

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Q: Differentiate between reactants and products. How do you write a chemical equation? Why is chemical…

A: The difference between reactants and products are : Reactants Products Substances that…

Q: The molecular formula of hexakis(methylthio)benzene is C12H18S6. What is the percentage (by mass) of…

A: We have to calculate the % by mass of C in hexakis(methylthio)benzene .

Q: Natural rubidium has the average mass of 85.4678 u and is composed of isotopes85 Rb (mass = 84.9117…

A: Mass of the Rb = 86.913 amu. Given data: 85.4678 amu is average mass of the Rb Mass of 85Rb =…

Q: The element silver (Ag) has two naturally occurring isotopes:109 Ag and 107Ag with a mass of 106.905…

A:

Q: Write the balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous…

A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…

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.