Homework 5 Balancing Chemical Equations

Q: A Honda Accord gets 24 miles per gallon in the city and is estimated to emit 7 tons of CO2 per year.…

A: Given that 7 tons of CO2 emits from Honda Accord per year. 1 ton = 2000 pounds 1 tree absorb 30…

Q: What is correct from multiple choice

A: Since the reactions in which only the physical properties of reactants change and no change in…

Q: lets assume your secondary education has led you to rob armored cars, in your latest heist, if you…

A: Mass of penny= 3.09g Value of penny = 1 cent = $0.01 Monetary density of penny= value /mass = $0.01…

Q: C6H1005+6 02 --> 6 CO2 + 5 H2O The number and types of atoms in the reactants are the type your…

A: A chemical reaction in which the number of atoms on both sides of the equation is equal is termed a…

Q: Consider a block of wood having a volume of 125 cm³. If the block of wood burns at a rate of 15…

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Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…

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Q: What should you wear in the Chemistry Lab? What are the precautions you need to observe in handling…

A: The below answers provide general guidelines and precautions for handling various materials and…

Q: Chemistry is the study of _______ and the changes it undergoes.     mixtures     matter     pure…

A: Correct answer : Matter.

Q: 1. Which of the following statements is correct? * Fuels are always hydrocarbons O Humans do not…

A: Answer

Q: Consider a block of wood having a volume of 125 cm³. If the clock of wood burns at a rate of 15…

A: Calculation of mass of woodblock: The volume and density of woodblock are given. By using this…

Q: Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her…

A: Molar mass of H2O is 18.02 g/mol. Molar mass of CoCl2 is 129.84 g/mol. Mass of water removed can be…

Q: Please report your answer in scientific notation in the provided boxes. Che Although it is not…

A: Mass was lost in this process, m=1.06×10−9gram   If you need answer with 10-10 then it will be,…

Q: 3 2 1 14. 1Н + 1Н — Оп+ in 1H 4 2He 4Be 3 On

A: To determine the mass number and atomic number of unknown product  we can equate mass number and…

Q: This section in a Safety Data Sheet contains information on the possibility of the material to…

A: Material Safety Data Sheet is available for every chemical compounds. It provides safety handling of…

Q: what is the theoretical volume of carbon dioxide you are adding to the air?

A: Number of moles = mass/molar mass  1 mol gas = 22.4 L

Q: Food safety guidelines recommend that a beef rib roast (bone-in) should cook for 23.0 minutes per…

A: beef rib roast (bone-in) should cook for 23.0 minutes per pound based on a 325 °F oven setting…

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: A. When 0.5g of iron filing was placed in a container with 2.0g of sulfur powder, this is called a…

A: Mixture - when two or more substances mix together in any proportion they form a mixture which…

Q: Which two options describe behaviors of particles that are related to the chemical properties of the…

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Q: Every year Jeff Bezos sells 5 billion dollars worth of Amazon stock to fund his commercial space…

A: 5 billion dollars = 5,000,000,000 dollars I had a job making 250 dollars an hour So, total hours I…

Q: A student walks over to the balance area with an Erlenmeyer flask in their hand. Before reaching the…

A: Erlenmeyer flask is a conical flask used for performing titrations in the laboratory.

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Q: ab. Reporting Proper Tools Add-ons Help Accessibility Last edit was seconds ago HE estions: Ow do…

A: As per guideline, Since you have posted a question with multiple sub-parts, we have solved the first…

Q: What kind of change happens when copper metal turns green, and what kind of change happens when…

A: Due presence of O2 and water in air the Cu oxidizes to CuS04 which is green coloured . This is the…

Q: Which of the following is an example of a chemical change? X Selected Answer: Answers: alcohol…

A: Physical changes: These are the changes that does not affect the chemical composition.These are…

Q: |Explore LESSON Name 70 Spare Change Date. Period Physical Versus Chemical Change DEMO Purpose To…

A: The first column is:

Q: Which three of the following represent chemical potential energy? a water molecule rotating an…

A: The concept of chemical potential energy is due to the arrangements of molecules and atoms in a…

Q: I Review I Constants I Periodic Table A hybrid electric vehicle has an EPA gas mileage rating of 49…

A: EPA mileage of the car is 49mi/gal 1mile=1.60934km 1gal=3785.411ml

Q: Life-cycle assessment (LCA) is defined as the study of resource consumption, emissions, and their…

A: Now LCA is basically concerned with the effects on the environment and the energies released or…

Q: What is correct from multiple choice

A: The physical change affects either state or form of the substance. It does not affect the chemical…

Q: X 12. Which of the following is not 0/1 something which happens during a chemical change: * Gas is…

A: In a chemical change, reactants are converted into the products.

Q: You're throwing a pizza party for 15 and figure each person will eat 4 slices how much is the pizza…

A: If we are provide the price of 1 orange, we can calculate the price of 5 oranges by…

Q: Question 17 Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a…

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Q: Heating Sugar #6) Decomposing Sugar Continued Heating Circle whether it is a Chemical or Physical…

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Q: Are students allowed to place a hot crucible on the balance? (Choose all correct answers) Yes. Hot…

A: The concept behind the answer is that weighing hot objects on a balance can lead to inaccurate…

Q: A sample of butane gas was completely combusted in oxygen to produce energy. If 1.35 x 1024…

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Q: What are three physical changes you encounter on a daily, weekly, or monthly basis? What are three…

A: Chemical changes play a critical role in many aspects of our daily lives. These changes are…

Q: A sample of gas is kept at 5 atmospheres, 25°C, and takes up 3 L. If the gas is cooled, the volume…

A: According to the ideal gas law  PV = nRT Where P = pressure, V = volume, n= moles of gas, R =…

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.