1. Which of the following is correct when comparing a solution at pH 11 to a solution at pH 7. A solution at pH 11 has: Forty times more protons than a solution at pH7 Forty times more hydroxide ions than a solution at pH7 10,000 times more protons than a solution at pH7 10,000 times more hydroxide ions than a solution at pH7

Q: 4. A salt solution consisting of 10.0% sodium chloride (salt) consists of how many parts per million…

A: Parts per million (ppm) is expressed as mg/Litre where 1 ppm means 1mg/litre. Hence if we dissolve 1…

Q: two atms of an element have the same number of  protons electrons plus neutrons protons plus…

A: Atoms are the smallest constituent unit of ordinary matter that has the properties of a chemical…

Q: In Chapter 1 of Astrobiology, A Very Short Introduction, the author talks about some special…

A: 1) It acts as a stable medium for biochemical processes. Water’s ability to dissolve most…

Q: The number of protons in a neutral (no charge) atom equals the number of O elements. electrons. O…

A: An ion is a an atom or molecule which is charge, either positively or negatively, based on the…

Q: 15. An acid is called an acid because of the amount of positive hydrogen ions that are dissolved in…

A: pH is the power of hydrogen ion concentration. The acid is considered as a substance, which is known…

Q: 7. The pH of lemon juice is about 2.0, whereas tomato juice's pH is about 4.0. Approximately how…

A: pH scale can be used to specify the acidity or basicity of an aqueous solution. Acidic solutions are…

Q: Oe 2. An atom has 25 protons, 30 neutrons, and 25 electrons. What is the charge of the atom's…

A:

Q: Explain the each of the following properties making water important to life

A: Water is a molecule composed of three atoms, two hydrogen atoms and one oxygen atom. It is an…

Q: High kinetic energy leads to the disruption of hydrogen bonding and hydrophobic attraction. These…

A: High temperature increases the kinetic energy and leads to the disruption of the hydrogen bonds and…

Q: Fill in the blank, the parentheses are the choices for the blank: When a sodium atom loses a single…

A: Atom is neutral because it contains an equal number of protons and electrons. When an atom accepts…

Q: The mass number of an atom depends primarily on the number of protons and neutrons. positrons.…

A: An atom is the smallest unit of any matter. It has three subatomic particles; neutrons, protons, and…

Q: 9. What bonds are affected by: а. Нeat b. Organic solvents c. Metallic salts d. Alkaloidal reagents…

A: Proteins are composed of amino acids linked by peptide/amide bonds (covalent). Which forms the…

Q: The charge____________ of a proton is exactly balanced by thecharge of a (an) ____________.a.…

A: An atom consists of proton, electron and neutron. Proton is positively charged. Electron is…

Q: How do the unique properties of water allow life to exist on Earth? 2. If 65 percent of your body…

A: Water is one that posses unique property such as being  inorganic, transparent, tasteless, odorless,…

Q: Which of the following is true of oxygen that has 8 protons, 8 neutrons, and 8 electrons?      A. It…

A: All the atoms are composed of three subatomic particles, electrons, protons and neutrons.

Q: A solution has a pH of 5.4. What is its pOH O5.4 8.6

A: The hydrogen ion concentration [H+] and hydroxide concentration [OH–] in a aqueous solution have an…

Q: At pH 10, [OH-] is—     10 M     5 M     10-10 M     10-4 M     0.0000001 M

A: pH is the measure of the relative amount of free hydrogen and hydroxyl ions in the water. A pH of…

Q: Can you please answer all of the sub questions please I really appreciate it

A: Atom is the smallest unit of matter composed of protons, electrons, and neutrons. It has two…

Q: Which of the following equations is correct?   options:   FAD+ + 2 electrons à FADH2   FAD + 2…

A: Answer -- FAD + 2 electrons + 2 protons à FADH2

Q: 3. Why are we able to look at the melting temperature of a solution and use Kr values in our…

A: The atomic bonding strength of any substance is indicated by its melting point. on applying…

Q: Imagine that I added 5 drops of lemon juice (an acid) to two solutions of water. Solution 1: pH 7,…

A: By the measurement of pH of the solution we can conclude the the nature of the solution. If the pH…

Q: 5. Play with the simulation to discover which particles affect the charge of an atom c a) Fill in…

A: Atom is the smallest unit of any matter. It is consist of three sub particles namely electron,…

Q: 1) If the pH of the rain drops from 6 to 5 due to air pollution, the rain has become: a) two time…

A: Acid rain caused when the rain is mixed with the volatile toxic compounds like sulfur dioxide and…

Q: 3. provides a quick, albeit inaccurate, means of obtaining the pH of a solution. 4. Substances whose…

A: pH is the negative log of H+ ions concentration. It indicates the acidity of a solution. When the H+…

Q: 4. Which of the following would be considered a basic solution? A. Solution with [OH-] = 3.8 x 10 M…

A: We can find out this using formula pH + pOH = 14 pOH = -log[OH-] and pH = -log [H+]

Q: 9. Which of the following changes to a chemical reaction will make it go faster? Select all that…

A: Biochemical reaction depends on many parameter. Many aspects increase or decrease the biochemical…

Q: 1 WHAT IS A CATALYST

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: why is water considered a polar molecule? 1.the oxygen is found between the two hydrogens 2.its…

A: Water is the main component of earth and all living organisms in the planet. It is transparent,…

Q: Pure water will not freeze unit it reaches a temperature of about  __________.  Water in the liquid…

A: When liquid water is cooled, it contracts until a temperature of freezing point. Ordinarily, the…

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: 3-) used to determine how the change in concentration will Change the hade of reaction- react ion a.…

A: The general definition of the rate of reaction is the speed at which a chemical reaction takes…

Q: The slight positive charge of a hydrogen atom in one water molecule is drawn to the slight negative…

A: Opposite charges attract one another.

Q: 3. You do a paper chromatography experiment using the same conditions as outlined in the simulation.…

A: Chromatography is a technique of separation of different component present in a given sample.

Q: Specify whether each condition would result in increasing or decreasing acidity by dragging each…

A: Increasing acidity means that there will be more hydrogen ions and less hydroxyl ions.Decreasing…

Q: 3. Sometimes bubble tea parlors make too many boba for one day. To avoid waste, the bubble tea…

A: Solute molecules  and solvent  blend with each other to make up solution . Solution is categorised…

Q: 2. In orange juice which of these is the solvent? O Water O orange juice concentrate O sugar alcohol

A: The solute is the substance which gets dissolved where as the solvent is the substance in which the…

Q: ability of impurities to lower the melting point of a sample

A: Inside a liquid, solid, or gaseous substance chemical substances that are different from the…

Q: 2. When trying to identify an unknown element, a scientist determines what other elements the…

A: INTRODUCTION The number of protons in the nucleus determines which element an atom is, while the…

Q: All ions have at least one ________ (select all that arecorrect).a. proton c. electronb. neutron d.…

A: An ion is an atom/molecule that has a charge (positive/negative/neutral). Protons are positively…

Q: + + NH3 NH3 pk, CH2 CH2 čoQH ČO0- At pH 3.34 will you have more or less ionization of the acid?…

A: Acids are substances that can readily donate a proton. Amino acids are molecules made of an amine…

Q: 2. Which of the following correctly describe the colligative properties of aqueous solutions? I.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 2. By what type of solution can you categorize a solution whose concentration or strength has been…

A: Introduction: Titration is an analytical procedure in which a standard solution is used to find the…

Q: 1) breaking down a molecule by adding a water molecule is ? A. dehydration reaction. B. hydrolysis…

A: Dehydration reaction :  is the chemical reaction in which a water molecule is removed from the…

Q: 1. Why is biochemistry called the chemistry of life?

A: The name biochemistry was coined in 1903 by a German chemist named Carl Neuber.  The term…

Q: 12. What is the pH of a solution in which [OH-] = 0.000005 M7 1. 5.3 8.7 O 5 x10

A: pH and pOH are the two values that help to determine the strength of acid and base. pH refers to the…

Q: 1. The partial negative charge at one end of a water molecule is attracted to the partial positive…

A: Hydrogen bonds is a non-covalent interaction in which are formed between an electronegative atom and…

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: hich of the following is not a unique property of water? provide as means of lubrication have a high…

A: Introduction: Water is important for the survival of all living beings. Water generally has no…

Q: 3. Which of the following correctly the items form smallest (left) to largest (right) A. Cell…

A: The vital difference among the cell and atom is that a cell is made of particles whereas atoms is a…