A student is presented with a sample of an unknown substanceand asked to classify the substance as organic or inorganic. What tests should the student carry out?

Q: Describe the pH scale and the properties of acids and bases

A: Autoionization of water is a process through which water molecules generate hydrogen ions and…

Q: the first step in the test for a lipid is to add ethanol and propanone .what do this step do?

A: Lipids are organic molecules that contain hydrocarbons. These contain fats, hormones, oils, some…

Q: What does it mean to say that a substance is radioactive?

A: A substance composed two or more elements bonded together via chemical bonds is known as a compound.…

Q: the making and breaking of chemical bonds is called

A: A chemical bond is defined as an attraction present between the atoms either due to electron sharing…

Q: Water is a mineral

A: Water is not a mineral since it lacks crystalline form and is a liquid rather than a solid.

Q: Amount of water added (mL) Amount of Stock Solution (mL) Final Concentration A Solution 1 0.…

A: The concentration of unknown solution can be calculated from the formula C1V1= C2V2 Where C1=…

Q: What will you observe when samples of these fats and oils are tested for unsaturation with bromine…

A: Fatty acids are building blocks of fats. Fats are one of the major biomolecules. Fatty acids can be…

Q: Why should we study the strength of acids and bases?

A: Acids and bases are 2 very common  terms we ,hear in our daily life. These 2 are present in every…

Q: what is analytical chemistry with respect to its application?

A: A substance whose chemical constituents are being measured or being identified is known as an…

Q: What is the concentration of hydrogen ions [H+] in a solution that has a pH of 2? (write out using…

A: The pH, a standard unit that is used to specify whether an aqueous solution is acidic or basic, is…

Q: A _____________ is a type of mixture in which small particles are evenly distributed throughout…

A: When two or more substances mix with each other without participating in a chemical change, the…

Q: If glass is so dangerous, why is it used in the lab?

A: Most injuries in a laboratory caused by the broken glass. This kind of injuries should be avoided in…

Q: Describe how buffers are important to living organisms.

A: Buffers: These are compounds that are capable of either binding or releasing hydrogen ions depending…

Q: What would happen if you added another fat to the bottle, such as bacon grease, and shook it?

A: Fat is a type of macromolecule which is composed of lipid molecules. The lipid molecules possess…

Q: What determines whether a substance is an acid or a base? Brieflyoutline the pH scale.

A: pH is the figure that represents whether the given solution is acidic or alkaline on a logarithmic…

Q: In the accompanying figure, the atomic number refers to the:

A: The given is C (carbon) The atomic number is 6 The mass number is 12

Q: A student performs an experiment to determine whether 1 gram or 1 gram of salt dissolves more…

A: The process by which two substances react with one another gives a new product is known as a…

Q: The pH of a solution is an abbreviation conveying what information about that solution? A solution…

A: More the dissolved H+ ions more acidic is the solution, and if the number of dissolved OH- ions…

Q: what are two similarities and differences between sodium and potassium and between sodium and…

A: Sodium and potassium belongs to same group, hence they are very similar in properties. Sodium and…

Q: Why is it important to study the strength of acids and bases?

A: Any hydrogen-containing substance capable of transferring a proton (hydrogen ion) to another…

Q: Why is biochemistry called the chemistry of life?

A: The question is all about the subject biochemistry that it is called as chemistry of life as our…

Q: Hydrophobic substances such as vegetable oil are

A: A hydrophobic colloid is something that does not dissolve, mix with, or moisten when exposed to…

Q: Which one of the following is universal solvent? Select one: Ethanol Acid Water Methanol

A: A solvent is a substance that has the ability to dissolve solutes. The mixture of solvent and solute…

Q: True or False: The output of the Mass Spectrometer gives us the exact mass of a molecule.

A: The output of the mass spectrometer is the separation of molecules based on their m/z (mass to…

Q: What do we call the Chemical substance necessary for an organism to sustain life

A: Chemical substance-Nutrients are chemical substances found in every living thing on Earth. They are…

Q: Does a flour dissolves in water

A: A solvent is a compound that dissolves a solution, leading to a solution. A solvent is typically a…

Q: Which of the following are solutions?(a) Italian salad dressing(b) Rubbing alcohol(c) Algae in pond…

A: The term mixture in chemistry is defined as a material. It is made up of two or more different…

Q: Compare and contrast an acid from a base.

A: Acid and base both are chemical compounds that react to form water and salt by the neutralization…

Q: Base on the data below, what type of lipid is being present in the sample?

A: A lipid is any of various organic compounds that are insoluble in water.. Some lipids are -- include…

Q: Sample Results Remarks Glycine A Egg white B Casein Tyrosine D

A: In a polypeptide chain the amino acids are linked together via peptide linkages.

Q: How can you tell what type of molecule something is by it is spelling?

A: Atoms bond together to form molecules. Prefixes and suffixes are used to tell the type of molecules.

Q: Make a conclusion about the qualitative test on lipids  You can use this as your reference:…

A: Qualitative tests help to detect the presence of an unknown substance in a given sample. Presence of…

Q: Include the number of the blank in your answer.For example, Blank#1 = 15. Substance c (cal/goC) c…

A: 1 Calorie = 4184 Joule

Q: What element is an essential component in organic compounds

A: Organic compounds are those compounds which were first identified in living systems. These compounds…

Q: Will all carbohydrates gives a positive result with Molisch test?  Explain your answer:

A: Molisch test is named so after the name of its discoverer, Hans Molisch. It is a kind of chemical…

Q: In an aqueous solution, classify these compounds as strong acids, weak acids, strong bases, weak…

A: Acids are chemical substances that are able to donate a proton and often release H+ ions on…

Q: How is a forensic chemist similar to and different from a forensic toxicologist?

A: Forensic relates to law and involves scientific tests and methods in crime investigation.

Q: What are the features of acids, bases, and salts that cause scientists to refer to them as…

A: Water is a polar compound that forms the base of all fluids in the world. This compound is made of…

Q: If the addition of an acid or a base to a solution does not change its pH (or changed minimally),…

A: The question asks to fill up the statement:If the addition of an acid or a base to a solution does…

Q: True or False: Solid water is more dense than Liquid water.

A: Solid water is less dense than liquid water because, when liquid water molecule freeze into solid…

Q: A topping for ice cream contains fructose, hydrogenated soybean oil, salt, and cellulose. What types…

A: Atoms are small substances that together make molecules and compounds.

Q: Which pH value indicates a solution that has more hydrogen ions that hydroxide ions? pH 9 pH 4 pH 7

A: The pH scale is the logarithmic scale that measures the hydrogen ion concentration. It indicates…

Q: Choose the combination of answers that most accurately completes the statement. A chemical with…

A: chemical with sporicidal properties is phenol.

Q: what happens when a dishwashing liquid mixed in water

A: Dishwashing liquids are those liquids that are used to clean the dishes like crockery etc in the…

Q: what is a chemical compound

A: Chemicals are found everywhere in the universe. It also makes up biological molecules. These…

Q: What is the role of indicator in determining if the substance is acid or base? (Note that the…

A: pH indicators are compounds which are natural dye. Those indicate if the solution is acidic or basic…

Violence

Violence is defined as a physical act that causes or is intended to cause harm. Violence can cause physical, emotional, or both types of harm. Violence is defined by the World Health Organization as the intended use of physical force and power that causes threat or harm against oneself, another person, or against a community or group, and has the potential to cause damage, death, mental distress, maldevelopment, or poverty.