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3 years ago

What are the key characteristics of a synthesis reaction

1 answer:

8 0

Answer is: There are more reactants and one product of the reaction. The reactants may be elements or compounds. The product is always a compound.

Synthesis reaction is a type of reaction in which multiple reactants combine to form a single product.

For example, balanced chemical reaction: Ba + F₂ → BaF₂.

In barium fluoride, barium has oxidation number +2 and fluorine has oxidation number -1, so compound has neutral charge.

Second chemical reaction: CaO(s) + H₂O(l) → Ca(OH)₂(aq).

One molecule is produced from two molecules.

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If the solvent-solute interactions in a mixture are the solvent-solvent interactions and the solute-solute interactions, a homog

andre [41]

Answer:

a) If the solvent-solute interactions in a mixture are stronger than the solvent-solvent interactions and the solute-solute interactions, a homogeneous solution forms.

b) If the solvent-solute interactions in a mixture are weaker than the solvent-solvent interactions and the solute-solute interactions, the formation of a homogeneous solution is uncertain.

Explanation:

The solubility of solute in given solvent mainly depends upon the intermolecular interactions between the solvent and the solute. If the solute is surrounded and solvated by the solvent then the solute will dissolve in that solvent. Therefore, in order to dissolve the solute must form stronger interactions with the solvent as compared to the solute solute interactions or solvent solvent interactions.

Example:

When NaCl is added to water the partial negative oxygen of water is attracted to Na⁺ of NaCl and the partial positive hydrogen of water is attracted to Cl⁻ of NaCl. These new interactions between the NaCl ions and water are stronger than the interactions between water molecules and NaCl molecules themselves hence, results in solubility of NaCl in water.

On the other hand, if NaCl is added to Hexane (C₆H₁₄) it fails to make strong interactions with the solvent molecules resulting in insolubility of NaCl in hexane.

7 0

3 years ago

Calculate the volume of the gas when the pressure of the gas is 1.60 atm at a temperature of 298 K. There are 160. mol of gas in

LekaFEV [45]

Answer:

2445 L

Explanation:

Given:

Pressure = 1.60 atm

Temperature = 298 K

Volume = ?

n = 160 mol

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 08206 L.atm/K.mol

Applying the equation as:

1.60 atm × V = 160 mol × 0.08206 L.atm/K.mol × 298 K

⇒V = 2445.39 L

Answer to four significant digits, Volume = 2445 L

6 0

3 years ago

A gas cylinder contains only the gases radon, nitrogen, and helium. the radon has a pressure of 222 torr while the nitrogen has

Tema [17]

Dalton's law states that the total pressure of a mixture of non-interacting gases is equal to the sum of their partial pressures.

In this case,
$P_{total} = P_{Rn} + P_{Ar} + P_{N_{2}}$
$771 = 222 + 446 + P_{N_{2}}$
$P_{N_{2}} = 103 Torr$

7 0

3 years ago

Why do larger/hotter stars burn their fuel faster and live shorter lives than the Sun.

Musya8 [376]

You pretty much answered your own question haha
hotter stars die more quickly because, well, they're hotter than the sun
providing heat takes a lot of energy.

5 0

3 years ago

Read 2 more answers

If 18.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentra

k0ka [10]

Answer:

The molarity of ammonia will be 2.88 M.

Chemical equation

HCl + NH3 ------> NH4Cl

First of calculate the moles of HCl

mole of HCl = Molarity × Vol (L)

mole of HCl = 0.800× 0.018 = 0.014 mole

As the in balance chemical, moles of HCl and NH3 areequal

moles of NH3= 0.014

Molarity of NH3 = moles ÷ V(L) = 0.014/0.005 = 2.88 M

Result:

The molarity of ammonia will be 2.88 M.

3 0

3 years ago