Which of the following is NOT a produce of the neutralization reaction between hydrochloric acid and sodium carbonate?A. Sodium chloride
B. Carbon dioxide
C. Water
D. Sodium hydroxide
Answers
Answer: D. Sodium hydroxide
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
Neutralization reaction is a type of double displacement reaction where an acid reacts with base to produce salt and water.
Thus on reacting hydrochloric acid and sodium carbonate we get sodium chloride, water and carbon dioxide as products.
Related Questions
Samarium-146 has a half-life of 103.5 million years. After 1.035 billion years, how much samarium-146 will remain from a 205-g sample?0.200 g 0.400 g 20.5 g 103 g
According to one acid-base theory, water acts as an acid when an H2O molecule(1) accepts an H+ (3) accepts an H-(2) donates an H+ (4) donates an H-
Enter the the ksp expression for the solid ab2 in terms of the molar solubility x.
Which of the following objects has the highest average kinetic energy? and whyAn ice cube, A pool of cool water, A cup of warm water, A cup of boiling water
Answers
Answer:
C.
Explanation:
Molecules with the stronger intermolecular forces are pulled tightly together to form solid at higher temperatures and that's why the freezing point is higher.
Also, molecules with the stronger intermolecular force have greater interaction between the molecules and thus on heating do not boil easily and have high boiling point also.
Thus, melting point and boiling point increases with increase in number of carbon atoms and also increase in intermolecular forces (like hydrogen bonding, if present).
Thus, the compound which is gas at room temperature is because it has least number of carbon atoms and absence of hydrogen bonding.
Final answer:
Among the choices, only CH3CH2CH3 (propane) is a gas at room temperature. The other compounds, CH3CH2OH (ethanol), CH3CH2CH2CH2CH2CH2CH3 (hexane), and HOCH2CH2OH (ethylene glycol) are all liquids.
Explanation:
Among the four compounds given, compound C, which is CH3CH2CH3 (also known as propane), is a gas at room temperature. Compound A (CH3CH2OH, or ethanol), compound B (CH3CH2CH2CH2CH2CH2CH3, or hexane), and compound D (HOCH2CH2OH, or ethylene glycol) are all liquids at room temperature.
The state of a compound at room temperature depends on factors like molecular mass and intermolecular forces. Propane has a smaller molecular mass and weaker intermolecular forces than the others, making it a gas at room temperature.
Learn more about States of Compounds here:
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Answers
Final answer:
The 'e' slide referred to in your lab is a basic training tool used in microscopy education. By creating and examining this slide, students learn how to properly operate a microscope.
Explanation:
In the provided lab scenario, the type of slide made using the letter 'e' likely refers to a common activity in microscopy training. The 'e' slide is not specific to any microorganisms or tissues, but rather, is often used for educational purposes to help students learn how to operate a microscope and focus on small, detailed objects. This type of slide is created by writing or printing the letter 'e' onto a clear glass slide, and then attempting to view it under the microscope, thereby learning how to adjust the focus and observe details.
Although the information about the Petroff-Hausser counting chamber and the Snap Lab was provided, that doesn't seem to be relevant here, as your lab focused specifically on making and using a slide with the letter 'e'.
Learn more about e slide here: brainly.com/question/35622782
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Answers
Answers
# moles = mass / molar mass
Molar mass calculation
Barium hydroxide = Ba (OH)2
Atomic masses
Ba = 137.4 g/mol
O=16 g/mol
H=1 g/mol
Molar mass of Ba (OH)2 = 137.4 g/mol + 2*16g/mol + 2*1 g/mol = 171.4 g/mol
# mol = 25.0g/171.4 g/mol = 0.146 mol
For the volume of water use the fact that the density is 1g/ml., so 120 g = 120 ml = 0,120 liters.
M = 0.146mol / 0.120 liters = 1.22 mol/liter
b) the number of electrons in the outermost electron shell.
c) the attraction of an atom for the electrons in a covalent bond.
d) the repulsion of electrons in one atom for electrons in another atom.
Answers
Answer:
c) the attraction of an atom for the electrons in a covalent bond.
Explanation:
Electronegativity, symbol χ, is a chemical property describing an atom's ability of to attract a shared pair of electrons to itself. It is influenced by the atomic number of the atom and the distance between the valence electrons and the charged nucleus. As the electronegativity number of atoms increases, the more the atom attracts electrons towards itself.
Final answer:
Electronegativity is the attraction of an atom for electrons in a covalent bond. It determines how strongly an atom pulls shared electrons towards itself in a molecule.
option c is correct
Explanation:
Electronegativity is the attraction of an atom for the electrons in a covalent bond. It is a measure of how strongly an atom pulls shared electrons towards itself when it forms a covalent bond with another atom.
For example, in a molecule of HCl, chlorine is more electronegative than hydrogen, so the chlorine atom pulls the shared electron pair towards itself, resulting in a partial negative charge on the chlorine atom and a partial positive charge on the hydrogen atom.
Electronegativity increases as you move across a row or period in the periodic table from left to right and decreases as you move down a column or group.
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Answers
A solution is a homogenous mixture of substances with variable composition. The substance present in the major proportion is called the solvent, whereas the substance present in the minor proportion is called the solute. It is possible to have solutions composed of several solutes. The process of a solute dissolving in a solute is called dissolution.
Many common mixtures (like concrete) are heterogeneous —the components and properties of such mixtures are not distributed uniformly throughout their structures. Conversely, solutions are said to be homogeneous because they have uniform composition and properties. Solutions are intimate and random homogeneous mixtures of atomic-size chemical species, ions, or molecules.