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adell [148]
3 years ago
15

What do you understand by a chemical reaction

Chemistry
1 answer:
netineya [11]3 years ago
7 0

Answer:

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

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All the following affect solubility except the
Svet_ta [14]
Solubility is defined as the amount of a substance that can dissolve in a given amount of solvent. If enough substance is dissolved then the solution is defined as saturated, however, if more of the substance is able to be dissolved then it is considered an unsaturated solution. Temperature affects solubility in different ways, for gases dissolved in water it will decrease with an increase in temperature, in other words, cold water will dissolve more gas than hot water can. Polarity also affects solubility polar molecules are able to dissolve more easily in polar solutions and nonpolar molecules dissolve more readily in nonpolar solutions. As such, the answer to this question is D, the pressure above the solution does not affect solubility. The reason for this is that with a change in pressure there is litter to no change in solubility for solids or liquids, however, gasses as being the exception to most rules, their solubility increases as pressure increases.
7 0
3 years ago
Read 2 more answers
Which of the following compounds will not exist as resonance hybrid. Give reason for your answer :
Novosadov [1.4K]

Answer:

CH3OH

Explanation:

As it lacks

\pi

electrons hence it will not exist as resonance hybrid.

8 0
3 years ago
The mass percentage of hydrochloric acid within a solution is 15.00%. given that the density of this solution is 1.075 g/ml, fin
Morgarella [4.7K]

Given the mass percentage of HCl solution = 15.00 %

This means that 15.00 g HCl is present in 100 g solution

Moles of HCl = 15.00 gHCl*\frac{1 mol HCl}{36.46 g HCl} =0.411molHCl

Density of the solution = 1.075 g/mL

Calculating the volume of solution from density and mass:

100 g *\frac{1mL}{1.075 g} =93.0 mL

Converting volume from mL to L:

93.0 mL * \frac{1 L}{1000 mL} =0.093 L

Calculating the molarity of HCl solution from moles and volume:

\frac{0.411 mol}{0.093 L} =4.42 mol/L

8 0
4 years ago
Is baking soda is dissolved in vinegar and bubbles appear a chemical change?
nydimaria [60]
Yes baking soda is dissolved in vinegar and bubbles appear is a CHEMICAL CHANGE .
8 0
4 years ago
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Grace wanted to find out the best conditions for growing lettuce plants.
Mariana [72]

Explanation:

the investigation lasts for 7 days !

hope this helps you.

8 0
3 years ago
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