Bases in solution produce what type of ions?a. sulfide ions
b. chloride ions
c. hydroxide ions
d. hydronium ions
Answers
Bases have a pH of above 7, and are bitter and slippery.
Answer: c. hydroxide ions
Final answer:
Bases in a solution produce hydroxide ions (OH-). This ability to donate a hydroxide ion is what characteristically defines a substance as a base.
Explanation:
When bases dissolve in water, they produce hydroxide ions (OH-). In chemistry, bases are substances that can accept hydrogen ions (H+) or donate a hydroxide ion. For example, when sodium hydroxide (NaOH), a common base, dissolves in water, it dissociates into sodium ions (Na+) and hydroxide ions (OH-). This is the characteristic that defines a substance as a base.
Bases in a solution produce hydroxide ions (OH-). This ability to donate a hydroxide ion is what characteristically defines a substance as a base
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Related Questions
An average home in Colorado requires 2.00 x 107 KJ of heat per month. How many grams of natural gas (methane) must be burned to supply this energy?CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH°rxn= –890.4 kJ/mol
a hydrogen atom has one proton, two neutrons, and no electrons. Is this atom an ion? Explain your answer.
D Serum Levels Of 4 Mcg/mL, Calculate The Dose, In Milligrams, For A 120-lb Patient That May Be Expected To Result In A Blood Serum Gentamicin Level Of 4.5 Mcg/mL. This problem has been solved! See the answer If the administration of gentamicin at a dose of 1.75 mg/kg is determined to result in peak blood serum levels of 4 mcg/mL, calculate the dose, in milligrams, for a 120-lb patient that may be expected to result in a blood serum gentamicin level of 4.5 mcg/mL.
Which of these factors are experienced by a space shuttle in orbit? Check all that apply. A. gravity B. air resistance C. friction D. inertia E. centripetal force
Answers
Answer: Blocks harmful UV rays transports and distributes heat cycles essential elements: C, O, and N
Explanation:
The atmosphere is the integral part of the earth this typically includes gases which are necessary for sustaining lives on earth. The earth atmosphere forms a protective blanket around the inner earth which prevents the entry of majority of UV rays directly coming from the sun, This way atmosphere plays an important role in protecting the living beings from carcinogenic UV rays. It distributes the heat coming from the sunlight also it reflect back the absorb heat energy to the space acquired from the sun so as to maintain the balance of heat on planet earth.
It essentially plays an important role in circulation of essential gaseous elements like carbon, oxygen and nitrogen as these are required by the plants to conduct photosynthesis, respiration and protein synthesis respectively. Majorly all other life forms on earth are dependent on plants for food requirements therefore this cycling is beneficial for sustaining their lives too.
B. BeAs
C. Be3As2
D. Be2As3
Answers
Answer:
Be3As2
Explanation:
Answer:
C) Be3As2
Explanation:
A.P.E.X
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B. 96 N
C. 960.4 N
D. 48 N
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Answers
Answer:
Explanation:
The partial negative charge in a water molecule occurs because of differences in electronegativity between the atoms involved. A water molecule (H2O) consists of two hydrogen atoms and one oxygen atom. Oxygen is significantly more electronegative than hydrogen, which means it has a stronger attraction for electrons.
In a covalent bond between hydrogen and oxygen, such as in a water molecule, electrons are shared between the two atoms. However, because oxygen is more electronegative, it pulls the shared electrons closer to itself, creating an uneven distribution of electron density. This results in the oxygen atom having a partial negative charge (δ-) and the hydrogen atoms having partial positive charges (δ+).
The electronegativity difference between hydrogen and oxygen causes the electrons in the covalent bonds to spend more time around the oxygen atom, making it partially negatively charged. This partial negative charge on the oxygen atom and the partial positive charges on the hydrogen atoms give water its polar nature. This polarity plays a crucial role in various chemical and physical properties of water, such as its ability to form hydrogen bonds, its high surface tension, and its unique solvent properties.
Absolute zero on Kelvin scale is -273°C.
Liquefaction of the gas occurs at approximately -155°C.
Condensation occurs at 0°C.
The gas follows a linear relationship between volume and temperature.
Answers
Answer : The incorrect option is, Condensation occurs at .
Explanation :
Absolute zero on Kelvin scale is .
This statement is correct because at the temperature in degree Celsius will be,
Liquefaction of the gas occurs at approximately .
This statement is correct. From the given graph the liquification of gas occurs at .
The gas follows a linear relationship between volume and temperature.
This statement is correct. According to the Charles law, the volume of gas is directly proportional to the temperature of the gas. So, gas follow the linear relationship between the volume and temperature.
Condensation occurs at .
This statement is incorrect because condensation occurs at . and the condensation is a process in which the phase changes from the gaseous state to liquid state at constant temperature.
As we know that condensation is a reverse process of vaporization. Both the process occurs at constant temperature .
Hence, the incorrect option is, Condensation occurs at .