_____________contribute hydrogen ions (H+) to a solution.a. Basesb. Isotopesc. Acidsd. Compounds

Q: A cation has a(n) ________ charge.a. neutralb. positivec. alternatingd. negative

A: An atom possessing a net electrical charge is called an ion. It is subclassified as cation and anion…

Q: Which of the following are properties of water that make itimportant for living cells?(a) It is a…

A: All living organisms require water for survival. Water has many uses for organisms and exhibits many…

Q: Which of the following statements is true? a. Acids and bases cannot mix together. b. Acids and…

A: pH scale indicates the hydrogen ion concentration of that solution. By given pH we can say if that…

Q: in a solution, the solvent is:  A) always a gas  B) always water C) the substance that is…

A: A solution is a uniform and stable mixture of solute and solvent. Solute particles are invisible in…

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: hen dissolved in water a blank donates H+ and blank  accepts H

A: An acid is compound when mixed in a solution, it releases hydrogen ions (H+). Acid such as HCl is a…

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: Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this…

A: pH is a measure of the acidity or alkalinity of a solution. The pH value states the relative…

Q: d fat. Duodenal pH is m

A: pancreas secretes digestive enzymes into the duodenum and hormones into the bloodstream. The…

Q: We say that water molecules are because they have a positive and negative end. Elements O a O b Weak…

A: Because of the unequal distribution of electrons among the atoms and the molecule's asymmetrical…

Q: A homogeneous mixture consists of 12% ethanol, 28% methanol and 60% water. Which of these is the…

A: Homogeneous mixture has the same proportions of its components throughout any given sample and is…

Q: A pH of 3 is a. basic b. neutral c. acidicd. a buffer

A: Introduction pH plays and important role in determining the concentration of H+ ions in the…

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: The smallest unit of any substance is the . a. atom b. molecule c. cell

A: The cell is the basic structural, and function unit of all living organisms. Cells are the smallest…

Q: The element phosphorus is needed in organisms to builda. proteins.b. carbohydrates.c. ATP.d.…

A: Introduction  All organisms need nutrients to grow. These nutrients are classified into two types:…

Q: A small amount of NaOH is added to a weak acid buffer system. Describe what happens in terms of…

A: Buffer is considered as the solution, which is a mixture of the weak acid and its conjugate base.…

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: A chemical reaction that joins two organic molecules into a larger one and produces water as a…

A: In a chemical reaction, when two smaller molecules joins up to form a rather bigger molecule is…

Q: A chemical reaction that has a negative AG is best described as a Exothermic. b Endergonic. c…

A: The change in Gibbs free energy, ΔG depends upon the change in enthalpy(ΔH) and entropy(ΔS). ΔGo =…

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: Hydrogen ions (H+) are ________ .a. in blood c. indicated by a pH scaleb. protons d. all of the…

A: Hydrogen ions (free state) are produced when the hydrogen atom gains or loses electrons and becomes…

Q: Chemistry Most swimming pool experts recommend a pH of between 7.0 and 7.6 for water in a swimming…

A: pH is the quantitative measure of the strength of the acidity of the solution by measuring the…

Q: Mobile phase can be :  A) Solid or liquid B) Only solid C) Only gas D) Liquid or gas

A: Chromatography is a technique that is used to separate different components of a mixture as a result…

Q: Pls help ASAP.

A:

Q: Sometimes the _______________ groups of proteins release hydrogen ions.

A: Proper functioning of body depends on a proper balance between acid and base concentration in the…

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: . A substance capable of dissolving freely inwater isa. hydrophilic.b. hydrophobic.c. hydrolyzed.d.…

A: Water is a universal solvent as it can dissolve most substances. It is polar in nature and dissolves…

Q: The lower the pH

A: Lower the pH, higher is the concentration of the hydrogen (H+) ions, which means the solution is…

Q: Select the correct answer. Electrons, protons, and neutrons are three subatomic particles of an…

A: Step 1 The organization is a systematic arrangement of smaller and simpler components into larger…

Q: An atom that can donate electrons during a reaction is calleda. an oxidizing agentb. a reducing…

A: during an ionic reaction, the elements with valence electrons 1,2, or 3, can donate electrons to its…

Q: You have a buffer with a pH of 10. You add a little bit of weak acid. What most likely will happen?…

A: A buffer solution resists changes in its pH when small quantities of acid or base are added to it.…

Q: Marissa is working with a solution that is very acidic. When she tests the solution with pH paper,…

A: pH scale :  7 is neutral,  more than 7 is basic pH and less than 7 is acidic pH. Acidic solution :…

Q: The characteristic that gives an element its distinctiveproperties is its number of ________.a.…

A: Elements are any substances that cannot be broken down or decomposed into simpler materials through…

Q: The enzyme is * A B C. D

A: Enzymes are the biocatalyst that can increase the rate of biochemical reaction without itself being…

Q: If a substance contains two or more elements of different types, it isconsidereda. a compoundb. a…

A: An "element" is a pure substance that made up of only one type of atom and cannot be broken down by…

Q: A solution contains 40 g of common salt in 320 of water. Calculate the concentration in terms of…

A: Mass per cent is a way of expressing a concentration or describing the component in a particular…

Q: another common term for ion is (starts with "e")

A: Ions are atoms with added electrons or reduced electrons. When the atom lost an electron, it will…

Q: Which of the following substances will dissolve in water

A: Water is known as a universal solvent as there are many substances that can dissolve easily in…

Q: A substance dissociates into K+ and Cl– in solution.The substance is a(n) ________.a. acidb. basec.…

A: Acids are the substances which on dissolution in water given H+ ions while bases on dissolution in…

Q: Make a conclusion: pH = 7,15 PCO2 = 25 mmol/l SB = 11 mmol/l BB = 27 mmol A BE =-17 mmol/l

A: Acidosis is a condition marked by an elevated acid content in the blood and a pH of less than 7.35.…

Q: In spectrophotometry, optical density (OD) is the same as: O transmnittance. Oan overdose.…

A: --> Optical density and absorbance both measure the absorption of light when that light passes…

Q: A solution with pH 4 has __________ the H+ concentration of pH 8.

A: pH value is generally used to measure the acidic or basic level of a solution. It ranges from 0 to…

Q: In a base, the hydrogen ion concentration is ____ than the hydroxide ion concentration.

A: In case of water, H+ and OH- concentration is equal. As the ionic product of water at 298 K is 1 x…

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: Pure water has a pH of 7, the point at which the concentrations of hydrogen ions and hydroxide ions…

A: pH is defined as the negative log of the hydrogen ion concentration. It ranges from zero to seven.…

Q: A solution has many more OH- and less H+ ions. This solution has a is a solution. pH and it high,…

A: pH basically means Hydrogen potential . It helps in determining how much of hydrogen ions are…

Q: Substances those are partially dissolved in water are commonly known as

A: Molecules that are dissolved in water completely are called polar substances. Polar molecules get…