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2 years ago

Which is an example of flow of heat through conduction

Chemistry

1 answer:

JulsSmile [24]2 years ago

5 0

Answer:

a metal spoon left in boiling water

Explanation:

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If the concentration of the HCl used in your titration was 1.00 M and you used 23.68 mL to reach the endpoint, calculate the con

drek231 [11]

Answer: The concentration of the OH-, CB = 0.473 M.

Explanation:

The balanced equation of reaction is:

2HCl + Ca(OH)2 ===> CaCl2 + 2H2O

Using titration equation of formula

CAVA/CBVB = NA/NB

Where NA is the number of mole of acid = 2 (from the balanced equation of reaction)

NB is the number of mole of base = 1 (from the balanced equation of reaction)

CA is the concentration of acid = 1M

CB is the concentration of base = to be calculated

VA is the volume of acid = 23.65 ml

VB is the volume of base = 25mL

Substituting

1×23.65/CB×25 = 2/1

Therefore CB =1×23.65×1/25×2

CB = 0.473 M.

6 0

3 years ago

Which half-reaction correctly represents reduction? *

nasty-shy [4]

Answer:

Explanation:

Reduction can be seen through addition (gaining) of electrons, addition of Hydrogen or removal of Oxygen

Mn7+ is reduced to Mn4+ by the addition of 3 electrons.

3 0

2 years ago

What are two chemical characteristics of oxygen

tamaranim1 [39]

Answer:

Characteristics: Oxygen in its common form (O2) is a colorless, odorless and tasteless diatomic gas. Oxygen is extremely reactive and forms oxides with nearly all other elements except noble gases. Oxygen dissolves more readily in cold water than warm water.

5 0

2 years ago

Give the major force between ethanol and water. dipole-dipole dispersion hydrogen bonding ion-ion ion-dipole

Komok [63]

Answer:

HYDROGEN BONDING

Explanation:HYDROGEN BONDING is the major intermolecular force and interaction taking place when water and ethanol are mixed.

Hydrogen bond is a weak inter-molecular force of attraction which occurs when the partially charged Negative end of an oxygen atom from one oxygen molecule attracts and interacts with the partially charged Positive end of the Hydrogen atom in another Molecule, Hydrogen bonds are also known as dipole-dipole bonds.

7 0

2 years ago

Read 2 more answers

What is the molar solubility of AgCl in a 0.050 M NaCl solution? The Ksp of AgCl is 1.6 x 10-10. (Assume that the contribution o

Hitman42 [59]

The molar solubility of AgCl:

The molar solubility of AgCl in a 0.050 M NaCl solution is 8 x $10^{-8}$ M $Ag^{+}$

What is solubility?

The solubility is the quantity of reagent required to saturate the solution or bring about the dissociation reaction's equilibrium.

Reaction:

The dissociation reaction of AgCl in water is:

$AgCl$ ⇄ $Ag^{+} + Cl^{-}$

Each mole of AgCl that dissolves in this reaction yields 1 mole of both $Ag^{+}$ and $Cl^{-}$ . The concentration of either the Ag or Cl ions would then be equal to the solubility.