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2 years ago

Can anyone help me in my chemistry homework?

Chemistry

2 answers:

sdas [7]2 years ago

7 0

Answer:

what is in your chemistry home work I can try for...

natta225 [31]2 years ago

6 0

Answer:

1: A substance made by mixing other substances together.

2: Solutions, Suspensions, Colloids and Emulsion.

3: A particular kind of matter with uniform properties.

4: A homogenous mixture is that mixture in which the components mix with each other and its composition is uniform throughout the solution. A heterogenous mixture is that mixture in which the composition is not uniform throughout and different components are observed.

5: A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm. Common examples of solutions are the sugar in water and salt in water solutions, soda water, etc. In a solution, all the components appear as a single phase.

6: A solution forms when one substance dissolves in another. The substance that dissolves is called the solute. The substance that dissolves it is called the solvent. For example, polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes.

7: Common examples of suspension include the mixture of chalk and water, muddy water, the mixture of flour and water, a mixture of dust particles and air, fog, milk of magnesia, etc. Q2. Give the definition of suspension. Ans: A suspension is a heterogeneous mixture of two or more substances.

8: The Tyndall effect is light scattering by particles in a colloid or in a very fine suspension.

Explanation:

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According to the law of conservation of mass,why is it considered a mistake to add calcium to the product side if it is not in t

ser-zykov [4K]

<span>According to the law of conservation of mass, the masses of the products and reactants must be the same. Adding calcium to the product side is considered a mistake if it is not in the reactant side of a particular chemical equation because it is impossible to produce calcium from thin air (unless this is a nuclear reaction).</span>

5 0

3 years ago

If two fatty acids, glycerol, and a phosphate group undergo a dehydration reaction, what molecule forms

GrogVix [38]

<h3>Answer:</h3>

A Phospholipid is formed.

<h3>Explanation:</h3>

The reaction of fatty acids, glycerol and phosphoric acid is given below. In this reaction the carboxylic groups of fatty acids and the hydrogyl groups of glycerol undergo an Esterification Reaction with the elimination of two water molecules and formation of Ester functional group. Also, the third hydroxyl group of glycerol undergo dehydration reaction with phosphoric acid. The resulting molecule is known as phospholipid.

Biologically, Phospholipids are found in the cell membranes. The long hydrocarbon chains of fatty acids acts as hydrophobic (water fearing) tails and the phosphate group acts as hydrophilic (water loving) head. They form a barrier protecting the internal environment of cell from external surrounding.

7 0

3 years ago

Based on the definitions of acid and base, identify the acid and base in this reaction. Then identify the spectator ion.

strojnjashka [21]

Answer:

Acid : H2O

Base : O2

Spectator Ions : K+

Explanation:

8 0

2 years ago

calculate the number of moles of magnesium presented in a banana knowing that the one banana contains 422mg=0.422g of Mg and the

tigry1 [53]

N (moles) = m (mass in grams) / M (molar mass)

the molar mass of magnesium is 24.31

so n = 0.422 / 24.31
which = 0.0174 mol

7 0

3 years ago

What happens when<br> there is a limited<br> resource in an area?

Alecsey [184]

Answer:

it will eventually die off or eventually repopulate

Explanation:

3 0

2 years ago

Can anyone help me in my chemistry homework?​

Can anyone help me in my chemistry homework?