Which of the following is a chemical change? Explain your reasoning: (a) boiling canned soup; (b) toasting a slice of bread; (c) chopping a log; (d) burning a log.

Q: Why is understanding of chemistry important to the study of human anatomy and physiology

A: Chemistry  Chemistry is a branch of science that involves the study of the composition, structure…

Q: Provide examples of physical change and chemical changes and how you could tell.

A: Physical change :  A physical change is defined as the change which do not change composition of…

Q: Discuss the contribution of Amadeo Avogadro to the quantitative aspect of Chemistry.

A: Amedeo Carlo Avogadro is an Italian chemist, well known for Avogadro's law and Avogadro's number or…

Q: Which is an example of a chemical change? Steam from the boiling water condenses on the ceiling The…

A: CHEMICAL CHANGE  :- A chemical change as the name suggests, brings a change in the chernical…

Q: What type of metal is this? Aluminum, Copper, Lead or Iron?

A: Specific heat of metal in cal/g˚C is 0.220 Specific heat of metal in J/g˚C is 0.920.

Q: Why do physical properties play a role in chemistry if they do not involve any chemical changes?

A: I

Q: I am having trouble understanding the difference between a compound and mixture and how to identify…

A: When two or more elements are present together they are called compounds. Mixtures are made up of…

Q: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: Using combustion reaction of wood it is observed that it is similar to decomposition of limestone.

Q: The following is an example of a physical change: O formation of rust O production of energy by…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Which is not a clue that could indicate a chemical change? O Change in color O Change in shape O…

A: Change in shape don't indicate the chemical change .

Q: where are each chemical component

A: Amines are Basic compounds and soluble in Inorganic acids like HCl.  Carboxylic acids are soluble in…

Q: Which term best describes carbon dioxide, CO2? a. an atom b. an element C. a homogeneous mixture d.…

A: A chemical compound is a chemical substance composed of many identical molecules composed of atoms…

Q: lene wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change…

A: Sugar dissolves in water is a physical change because in this change no new substance/compound is…

Q: 2) What evidence indicates that new substances with different properties are formed during chemical…

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Q: n a table according to their chemical and physical properties. The goal is to display as many…

A: A question based on periodic trends that is to be accomplished.

Q: Give an example of a chemical change, and explain what evidence supports that it is a chemical…

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Q: What three types of information does a balanced chemicalequation provide? How?

A: Balanced chemical equation for a chemical reaction is the one that has same number of atoms on both…

Q: | Which one of the following is often easily separated into its components by simple techniques such…

A: The combination of two or more substances without the participation in the chemical reation yields a…

Q: You are given a hammer a battery, a bulb, wires and switch(a) How could you use them to distinguish…

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Q: (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water OUCOTIOU TI

A: Step 1) a) copper(II) nitrate : Cu(NO3)2 It is also known as cupric nitrate formula or copper…

Q: Which of the following is a property attributed solely to chemical change? Change of color due to…

A: Which property is attributed to chemical change is given below.

Q: Classify the following materials as substances or mixtures: absolute (pure) alcohol, milk (as…

A: A material can be classified as mixture or substance depending on their properties. The material…

Q: Sugar is a compound made of the elements carbon, hydrogen, and oxygen. If you add sugar to water,…

A: In this question, we have to distinguish between compound and mixture.

Q: When calcium hydroxide and sulfuric acid are combined, calcium sulfate and water are formed is this…

A: A chemical change occurs when the molecular composition is completely altered and a new product is…

Q: What is another common situation in which a chemical change also leads to a physical change?

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Q: Classify each change as physical or chemical. (a) the explosion of gunpowder in the barrel of a…

A: ANSWER

Q: The tap water found in many areas of the United States leaveswhite deposits when it evaporates. Is…

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Q: Which of these is NOT true of chemical changes?

A: Substance can change two ways  1. Physical change  2. Chemical change   we should study major…

Q: Classify each of the following processes as either a physical change or a chemical change: A piece…

A: Physical change: In the physical, the state of matter is changed. In this change no chemical…

Q: A chemical reaction (also known as a chemical change) produces substances that are chemically…

A: Introduction :  Physical change : In physical change substances changes it's physical properties not…

Q: Which one of the following is a chemical change? Melting snow Distilling sea water Rusting Iron O…

A: Chemical changes are irreversible changes occurring in such a way, that one substrate completely…

Q: compounds. Then, a major shift happened. How did chemists increase the rate of discovery of the…

A: Antoine Lavoisier first one who tried to group the elements as metals and nonmetals. Then Wolfang…

Q: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: The heating of limestone is a chemical change;The limestone decomposes into two other substances,…

Q: Would you expect C3H7OH to be a solid, liquid or gas? Explain your logic. (the numbers above should…

A: Lower carbon alcohols that are alcohol with 1 to 3 carbon atoms are free-flowing liquids.  Alcohols…

Q: You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to…

A:

Q: Imagine a world in which all the elements existed, but they couldn't form any chemical bonds with…

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Q: Is the decomposition of copper(II) sulfate hydrate a physical change or a chemical change? Explain.

A: Given: Decomposition of copper (II) sulfate hydrate i.e. CuSO4·5H2O.

Q: Which of the following substances can be separated into simpler substances only by chemical means?…

A: Given options out of  which can be separated into simpler substances are   a. gold b. water c.…

Q: 13 What occurs within the beaker as the teacher mixes the vinegar and milk? A A chemical change that…

A: Multiple choice questions are answered with explanation.

Q: What is a chemical property of a matter

A: A Matter is anything that occupy space ( volume) and gas a mass and it may be sensible by our one or…

Q: In which of the following is a chemical change occurring? ice forming on a lake adding vinegar to…

A:

Q: Distinguish between the terms in each of the following pairs, using specific examples.. (b)…

A: Distinguish between the physical and chemical properties Physical change-A change in which no new…

Q: Nitrogen makes up what fraction of the mass of the hum Body? Nitrogen makes up what percentage of…

A: 1.Fraction of Nitrogen in mass of human body  70 kg  of Nitrogen is 1 fraction   2.2 Kg   of…

Q: From your initial observations, you suspect that the two beakers contain the same compound.…

A: If the compound contained by two beakers is pure, it can be easily proved that compounds are…

Q: What is the chemical composition of crystals? More so, what vegetables and type of crystals may be…

A: Answer - According to the question -  Chemical composition of crystals - A crystal is a material…

Q: Which f the following is an example of chemical change? O Filling up a balloon with hot air. O…

A: Chemical change is a process which results when a substance combines with another substance to form…

Q: Chemistry : is the science concerned with composition ,structure and properties of matter as well as…

A: According to the definition of Chemistry , this question can be explained as follows

Q: During a filtration or distillation experiment, we separate a mixture into its individual…

A: A mixture is a combination of two or more pure substances that retain their chemical identities.  It…