A base a. has a value below 7 on the pH scale. b. is a chemical that adds hydrogen ions to a solution. c. has a value of 7 on the pH scale. d. is a chemical that absorbs hydrogen ions from a solution.

Q: lons are: a. atoms or molecules with unequal numbers of electrons and protons b. atoms or molecules…

A: Question - lons are -  a.) atoms or molecules with unequal numbers of electrons and protons b.)…

Q: Sodium chloride is dissolved in water to make a _________________________. In here, sodium chloride…

A: Sodium chloride (NaCl) is an ionic compound in which sodium (Na+) and chloride (Cl-) ions are held…

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Q: How do you solve this question?

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Q: Which of the following statements is not true? a. Water is polar. b. Water stabilizes temperature.…

A: Importance of Water.

Q: Analyzing the Elements of a Scientific Method Read the following story and then answer the…

A: Answer:-  5. The problem described sentence is when the scientific examine both beaker but he found…

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

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A: Chromatography is a separation technique often used to separate and purify molecules such as…

Q: Which is not a property of water? a. Low specific heat b. Hydrogen bonds form a lattice c.…

A: Water is a tasteless, colorless, odorless liquid, made up of two atoms of Hydrogen and one atom of…

Q: Which of the following is a hydrophobic material?(A) paper (B) table salt(C) wax (D) sugar

A: Hydrophobic means the fear of water, where as hydrophilic is the liking of the water. The molecules…

Q: Which two statement about the substances in this experiment are true? A. Chalk is harder than…

A: Chalk is a sedimentary carbonate rock formed of the mineral calcite, is a soft, porous form of…

Q: Because water has high specific heat... A. Water can change temperature more quickly than other…

A: Water is an transparent, tasteless, transparent and almost colourless substance which is the main…

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

Q: If we removed a neutron from an atom, what would happen to the atom? Group of answer choices: a) its…

A: Atoms are the smallest unit of any matter in the universe. The electron revolves around the atoms in…

Q: reducing chemical reaction ________.   a. removes a hydrogen atom from the substrate   b. adds…

A: A reducing chemical reaction is adding an electron to the substrate

Q: Which of the following describes a buffer?   A. The measure of the amount of hydrogen ions in a…

A: A solution is said to be a homogeneous mixture of two or more components in any one phase(solid,…

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A: Brine shrimps are aquatic crustaceans which belongs to the genus Artemia. Brine shrimps produce…

Q: 2) dehydration reaction means ? A. molecules are breaking down by adding water. B. molecules are…

A: Biological molecules are substances that are present in the body and involved in Metabolic process .…

Q: A solution with a pH of 2 than a solution with a pH of 8.a. has less H+b. has more H+c. has more OH−

A: pH is a negative lot of hydrogen ion concentration.

Q: A Determine how much sodium and similar elements are normally found in the human booy B. Determine…

A: Asked : Reason for element are safe for humans to consume from given options.

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Q: which liquid is most like water and would support human life?

A: Water is the necessity of all living beings as it is free flowing and provides life to all living…

Q: Compound X has the above properties. Compound X is   a. C2H5OH b. C2H5Cl c. C2H5COOCH3 d. C2H6

A: Asked : Correct option which is compound X

Q: It is simple to grind up a plant and then extract and measure all of the chemical elements present,…

A: Plant extraction is defined as a process or technique that will aim to extract individual or…

Q: Which of the following would be most effective as a buffer? A. pure water   B. a mixture of…

A: Buffer is aqueous solution which is used to maintain an optimum pH and this can be acidic buffer or…

Q: Something with a pH of 5 would be A) acidic B) alkaline C) neutral D) basic

A: Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and…

Q: What is an organic molecule? A.) A molecule that contains both carbon and hydrogen. B.) A molecule…

A: The organic compounds include a variety of solid, liquid, and gaseous molecules that consist of one…

Q: When you mix salad oil and water, they immediately separate because ___.  A. salad oil is a nonpolar…

A: Liquids can be miscible or non-miscible. Miscible liquids get mixed with one another whereas…

Q: DNAs are a. double stranded b. contains uracil c. contains thymine d. contains adenine   Which…

A: 3 statements are absolutely correct for DNA:- a. double-stranded c. contains thymine d. contains…

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A: Plants use xylem to transport water from the soil to the leaf of the plants. Plants absorb the water…

Q: What is the pH of a solution that has a higher concentration of H+ ions than water?   A. > 7   B. 7…

A: The pH of the solution is described with respect to the concentration of hydrogen ions in the…

Q: Multiple water molecules are held together by... A. Dehydration synthesis B. Covalent bonds C.…

A: Water is also known as universal solvent because of its ability to dissolve almost everything.  A…

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

A: pH scale, which ranges from 1 to 14,  is used to measure how acidic or basic a compound is.

Q: Consider an electron transition from n = 3 to the n = 2 energy level in a hydrogen atom resulting in…

A: The electrons of hydrogen atoms revolve around their nucleus. They occur as a set of electrons with…

Q: What is the name of a representation of the physical world? Answer please A. Alloy B. Compound C.…

A: Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms.

Q: Which statement best explains why the study of water is relevant to the study of living organisms?…

A: Water makes up 60-75% of physical body weight. A loss of simply four percent of total body water…

Q: An Element from Group 5A and Group 6A shared a Chemical Bond. This entails that ____________ .…

A: Chemical Bond refers to the making of a chemical bond between 2 or more atoms, molecules, in order…

Q: sing the graphic above, answer the following questions. Vhich of the substances above has the…

A: pH (power of hydrogen) is used to know the acidic or basic level of a particular liquid or compound.…

Q: Analyzing the Elements of a Scientific Method Read the following story and then answer the…

A: Scientific research is an process for seeking knowledge to test the hypothesis  by various…

Q: What is an alloy? A. A compound of two metals B. An element of two metals C. A mixture of two metals…

A: Answer-  C. A mixture of two metals.

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: Which of the following best describes a solution with a pH of 9?    A. it would have 100 times more…

A: pH is the measure to specify acidity and basicity of an aqueous solution. It is the negative…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.