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

Q: Solidification is the process of changing the state of the material from .. ........ powder to solid…

A: Matter is something that consumes space and has mass. All matter is made out of components,…

Q: Define concentration

A: The term concentration has different meanings in different context. Here, the biological or…

Q: Molecules that can behave as an acid or as a base are called _____________.

A: A molecule that can donate a hydrogen ion or a proton in the solution or can pair up with an…

Q: When 11 milliliters are transferred from his sample to a dilution vial containing 99 ml, what is the…

A: Given  Volume of stock transferred = 11ml  Vial volume = 99ml  Both are same unit so don't have to…

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: Water acts as a very effective solvent. True or false

A: True

Q: The most important ion in biological systems is the____________________ ion.

A: Several metal ions are important for the biological activity of the animals as well as of the…

Q: True or False When water is not frozen, it does not exert much pressure, but once the water…

A: Frozen water shows large pressure:Compared to other substances, water will expand to a maximum of…

Q: When mixing 40 mg of a medication in 100 ml total solution, the resulting strength is

A: A pharmaceutical medicine is a chemical substance that causes a biological or physiological effect…

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: A difference in chemical concentration between one point and another is called a concentration…

A: When concentration of particles is higher in one side of the cell membrane and the other side of…

Q: A dehydration reaction (or condensation reaction) is the process in which _____.

A: Dehydration is a type of a chemical reaction that takes place generally during anabolic reactions.…

Q: Triglycerides are made of glycerol and _________

A: Triglycerides are the one of an important group of naturally occurring lipids which is otherwise…

Q: Buffers are mixtures of a weak acid and a weak base that combine with a strong acid or base to limit…

A: A solution is a homogeneous mixture of two or more things. The minor component of a solution is…

Q: Trouble with molarity

A:

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: 900 mL saturated solution (potassium sulphate) was made at 30 degrees celsius. If the solution is…

A: Solubility of a substance changes with temperature.

Q: A. Match the following tests to the element or characteristics it identifies. Oxygen and Halogen…

A: There are various chemical tests to check the presence of certain compounds or substances. A…

Q: If 65 percent of your body mass is water, determine how many kilograms of water you contain.

A: Water is the main component of the human body and it forms nearly 60% of body mass. Different organs…

Q: The chemical reaction where an aldehyde or ketone reacts with an alcohol in the presence of an…

A: Functional groups are the chemical entities which provide specific characteristic for reactions to…

Q: In biological systems, buffers are important because they facilitate changes in pH to enhance…

A: A biological buffer is an organic material which acts as a H+ ions neutralizer. A biological buffer…

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: What is the name of this area at the end of the arrow for letter B? - what would you typically find…

A: Digestion is a process that involves the breakdown of larger food particles into smaller food…

Q: A ____ is a substance that is dissolved in a liquid.

A: Mixture is a material which is formed by mixing two or substances. If something is dissolved in the…

Q: describe the unique properties of water

A: Unique properties of water: Water is capable of dissolving a variety of different substances, which…

Q: A 12-ounce can of soda contains the equivalent of O 1 teaspoon of sugar O 4 teaspoons of sugar O 7…

A: 4.) 10 teaspoons of suger

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: pH represents the:

A: Answer - pH stands for potential of hydrogen and it is calculated as negative logarithm of hydrogen…

Q: lidocaine

A: 2 % lidocaine means 2000 mg / 100ml which is equal to 20 mg/ml. Ordered dose = 100 mg Available dose…

Q: An element is a pure substance that cannot be broken down into other substance by physical or…

A: An element is any substance which is composed of only one kind of an atom.

Q: Purines are characterized by triple hydrogen bonds. The statement is    TRUE OR FALSE

A: Nitrogenous bases like purines and pyrimidines are the important molecules in the formation of DNA…

Q: What is iodine

A: Food is the ultimate source of nutrition for the body. It contains all the nutrients that are…

Q: When some of the sugar added to iced tea remains undissolved on the bottom of the glass, the…

A:

Q: Property of a Suitable Wash Liquid

A: The efficacy of hand hygiene in clinical workplace accompanies infection control. There is…

Q: Difference between weak and strong acid

A: An acid is a chemical substance or agents that release hydrogen ions when dissolved in water. The…

Q: Caffeine belongs to a class of chemicals called

A: Option 2 is correct.

Q: A mineral is a naturally occurring solid that is composed of many inorganic materials. Which of the…

A: Features of minerals Naturally occurring substance. Should not be man made Is  Composed of…

Q: physical properties

A: All substances are indicated by their distinctive collection of physical and chemical properties.…

Q: A condition in some metals and nonmetals where they can have more than one crystal structure.

A: Above their melting point, the atoms of metals and nonmetals are randomly arranged and are…

Q: This structure represent

A: The hydrophilic head and hydrophobic tail of the phospholipid bilayer are present. The intrinsic…

Q: Which mineral is a carbonate a compound that contains a -co3 group

A: Carbon dioxide is soluble in water. In a reversible reaction, it makes carbonic acid with water…

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: A Base is a measure of the quantity of

A: bases are chemicals which tent to taken protons and gives hydroxyl ions . they are also chemicals…

Q: another name for ion

A: Ion, which can be known by the name of a charged particle is a charge bearing atom or group of…

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: Both fats and oils produce glycerol and fatty acids when hydrolyzed in an acid solution, true or…

A: Both the fates and oils are simple lipids. These are the esters of fatty acid with glycerol, hence…

Q: Buffers also exist in biological systems. Discuss the composition and function of one example of a…

A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the…