How can we learn how to balance chemistry equations?

Q: QUESTION 9 Which of the following correctly depicts the mechanistic first step in the addition of…

A: we have to identify the correct first step for the mechanism of addition of HBr to 2-methylpropene

Q: Discuss the difference between covalent bonding and non-covalent interactions.

A: Covalent bonds: These are the type of chemical bonds formed when two atoms share electrons between…

Q: How many molecules are there in 345.2 grams of HCl?

A: 1 mole = 6.022×1023 (Avogadro's number) The mass of one mole of molecules of a substance is called…

Q: 5. Chemists have determined that 18.0 g of water consists of 6.02x1023 molecules. Assuming that a…

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Q: The concentration of H₂AsO3 in a solution is determined by titrating it with a 0.1722 M Ce+…

A: Given, the balanced equation: 2Ce4+(aq) + H3AsO3(aq) + 5H2O(l) → 2Ce3+(aq) + H3AsO4(aq) + 3H3O+(aq)…

Q: 4. Explain the difference between emission and absorption of energy.

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Q: Naphthalene, C10H8 is insoluble in water but sublimes easily when heated. How could you separate a…

A: This problem is based on the general method of separation.

Q: Specify the formal charges (both sign and magnitude) on the atoms labelled a-c. F |c H₂C-O-B-F CH₂ F…

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Q: 3. Draw and name all of the constitutional isomers of C4H7Br3.

A: Constitutional isomers : Constitutional isomer can be defined as the compound have same molecular…

Q: 1. a. Calculate the mass of BaSO4 required to make 50.00 mL of a 0.1500 M solution. b. Calculate the…

A: Molarity is the amount of substance that is added in particular volume of solution. Molarity =…

Q: 38. Estimate the structural or binding singularities that the underlined ligand or atom will show in…

A: Since you have asked a question with multiple suparts we will answer the first three for you. To get…

Q: Q22: If you rotate the hydrogen atoms to a different position in a model of C2H5Cl  by turning…

A: We have to answer by turning about the central C—C bond in C2H5Cl, do you get different structural…

Q: How did you come up with the (A-)/(HA) = 0.905

A: [A-]/[HA] = 0.905 pH = 4.66  pKa = 4.76

Q: b. You have lots of 12 M H₂SO4 but need 0.50 L of 3 M H2SO4. What volume of the 12 M solution do you…

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Q: Order the following solutions from lowest to highest pH: 1. 0.10 M NACIO II. 0.10 M KBr III. 0.10 M…

A: pH is the measure of acidity. It is obtained by negative logarithm of concentration of H+

Q: Write the expression for Keq for the following reactions. In each case indicate whether the reaction…

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Q: If you add 21.1 mL of solution from a buret into a flask that already contained 38.7 mL of solution,…

A: Given that,  21.1 mL of solution from a buret is added into a flask that already contained 38.7 mL…

Q: Balance the equation. equation: U(s) + F₂ (g) = UF(g) Write the reaction-quotient expression, Qc,…

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Q: Write the balanced equation for the reaction shown. ●0-N₁ - H₂ balanced equation: NH,

A: Balanced chemical equation: Balance chemical equation is the reaction in which number of atoms of…

Q: 3. You measure the weight fraction Cu in an alloy by dissolving 2.012 g of the material in 100.0 mLs…

A: Given: Weight of copper alloy dissolved = 2.012 g Cu concentration = 342 mg Cu / L  Volume = 100.0…

Q: An evaporator is used to concentrate cane juice. 10,000 g of juice containing 38% mass/mass of sugar…

A: Given -> Initial mass of juice = 10000 gm  Initial concentration (m/m) of sugar = 38%  Final…

Q: Chemistry Write the balanced chemical equation, including the physical states, for the reaction…

A: The complex, [Zn(NH3)4]2+(aq) present in the test solution has formation constant, Kf = 4*108  The…

Q: The pKa of formic acid (HCO2H) is 3.75. What is the pH of a solution of 0.2 M formic acid?

A: The pKa for the formic acid is = 3.75 The concentration of the formic acid solution is = 0.2 M The…

Q: 7. Light travels at a speed of 3.00 x 10¹0 cm/sec. What is the speed of light in km/hr?

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: The mean temperature of the surface of Mars is 218 K. Use the Planck expression Calculate the…

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Q: 11. 5.71 x 10* 12. 8.32 x 10² 13. 4.93 x 10-6 14.7.64 x 10² 15. 2.6 x 10²³

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Q: In what ways is a cell like a pot of soup? Select all that apply. The majority of it is water It is…

A: Answer is - Tha majority of it is water

Q: Use the combination of the following elements: Si:Al and Si:N to explain the concept of N-type and…

A: Al is group 3 element, so it is trivalent impurity. So, Si:Al is P-type of conductor. In P-type of…

Q: On a blank sheet of paper, first copy the molecule below, and then please draw the resonance…

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: If a noncyclic contains 15 carbon atoms, how many hydrogen atoms does it contain?  answer is 32?

A:

Q: 6. Analysis of Buffers in Unknown Imagine that you are given thre is a buffer, the other two are no…

A: A buffer is a mixture of a weak acid (HA) and its salt (e.g., NaA), and is sometimes referred to as…

Q: 7. Which of the following statement(s) is/are correct? (1) (ii) At the Boyle temperature a real gas…

A: At boyle's temperature a real gas behaves as ideal gas for wide range of pressure. True Ethene have…

Q: 5.8×10−3 mol C to atom

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Q: Choose the reagent that can accomplish the following transformation: 1) BH3 2) NaOH/H₂O2/H₂O H₂/Pd…

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Q: Which of the following statements is incorrect concerning the thermochemical equation below? 2…

A: Exothermic reaction: The reactions in which heat energy is released is called an exothermic…

Q: 15. s] The critical constants of ethane are Pc = 48.72 bar, Vc = 145.50 L and Tc = 305.32 K.…

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Q: what is a skeletal formula?

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Q: Chemistry PLEASE HELP! THANK YOU 1. Define hydrate. 2. Name each of the following hydrates.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Adding earthworms to a compost pile typically increases the rate at which the organic matter in the…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Propose an efficient synthesis the following transformation: MeO OMe KP The transformation above can…

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Q: What is the IUPAC name for the compound shown?

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Q: Calculate the energy of a photon of radiation with a frequency of 8.75x10^14 Hz

A: The energy of the radiation is quantized and the energy of one photon is given by:

Q: Consider the reaction. A(aq) = 2 B(aq) K = 3.74 x 10-6 at 500 K If a 3.10 M sample of A is heated to…

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Q: What is the mass in grams of each elemental sample? 0.589 molmol Ba to g

A: To determine the mass in grams from a specific mole of sample ,first of all we need to know the…

Q: Question 14 Which of the following are true about redox reactions? (select all that apply) Electrons…

A: A redox reaction is reaction that takes place between an oxidizing agent and reducing agent.that…

Q: When 32.4 g of a certain molecular compound X are dissolved in 65.0 g of benzonitrile (C,H,CN), the…

A: we have to calculate the molar mass of X

Q: 25.0 mL of a 5.00 M solution is diluted to 1.00 L. What is the new concentration?

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Q: What is an adsorption isotherm? What is the texture of a catalyst?

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Q: A 10.0 gram lead ball was heated with 55.5 joules of heat to 50.0 oC. Given the specific heat of…

A: A 10.0 gram lead ball was heated with 55.5 joules of heat to 50.0 °C. Given the specific heat of…

Q: What are the energy transformations in a fossil fuels power plant? to to :: chemical energy ::…

A: To answer:  A] What are the energy transformations in a fossil fuels power plant? B] List the energy…

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.