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3 years ago

Which of these substances most likely dissolve in water? check all that apply.

Chemistry

1 answer:

vlada-n [284]3 years ago

8 0

The answer is:

glucose, a polar organic compound

silver nitrate, an ionic compound

<span>The two have net charges that enable them to attract with water molecules. Water molecules are partly charged because of the arrangement of electron clouds around the molecule. The oxygen atom in the molecule is more electronegative than the two hydrogens. Therefore water is able to form electrostatic attraction forces with the charged molecules</span>

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What is produced when an acid reacts with a base?

Lelu [443]

Answer:

salt and water

Explanation:

they react to neutralize the acid and base properties,producing a salt while the H(+) cation of the acid combines with OH(-) anion of the base to form water. I hope it's helpful

4 0

3 years ago

Read 2 more answers

5. An object is a regular, rectangular, solid with dimensions of 2 cm by 3cm by 2cm. It has a mass of 24 g. find its density.

m_a_m_a [10]

Answer:

Density, D = 2g/cm^3

Explanation:

Given the following data;

Length = 2cm

Width = 3cm

Height = 2cm

Mass = 24g

Density = ?

Volume of a rectangular solid (V) = Length × Weight × Height

Therefore, V = L× W × H

Substituting the values, we have;

$V = 2 *3 * 2 = 12$

V = 12cm

Density can be defined as the ratio of mass to volume i.e mass all over volume.

Mathematically, $Density = \frac{Mass}{Volume}$

$D = \frac{M}{V}$

Substituting the values, we have;

$D = \frac{24}{12}$

<em>Density, D = 2g/cm^3</em>

Hence, the density of the rectangular solid is 2g/cm^3.

3 0

3 years ago

Carbon monoxide prevents __________. A. the breakdown of other chemicals in the liver B. fuel from igniting at the wrong time C.

aksik [14]

Answer: C. the blood from carrying oxygen to the tissues of the body.

The carbon monoxide is a poisonous gas, it inhibits the ability of the hemoglobin to distribute oxygen. Hemoglobin is a protein in the red blood cells. The function of the hemoglobin is to distribute oxygen throughout the body. It has high affinity for oxygen. The carbon monoxide replaces oxygen in the hemoglobin. This results in respiratory and cardiac arrest.

7 0

3 years ago

Hc2h3o2(aq)+h2o(l)⇌h3o+(aq)+c2h3o−2(aq) kc=1.8×10−5 at 25∘c part a if a solution initially contains 0.260 m hc2h3o2, what is the

Cloud [144]

Answer : The equilibrium concentration of $H_3O^+$ at $25^oC$ is, $2.154\times 10^{-3}m$ .

Solution : Given,

Equilibrium constant, $K_c=1.8\times 10^{-5}$

Initial concentration of $HC_2H_3O_2$ = 0.260 m

Let, the 'x' mol/L of $H_3O^+$ are formed and at same time 'x' mol/L of $HC_2H_3O_2$ are also formed.

The equilibrium reaction is,

$HC_2H_3O_2(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+C_2H_3O_2^-(aq)$

Initially 0.260 m 0 0

At equilibrium (0.260 - x) x x

The expression for equilibrium constant for a given reaction is,

$K_c=\frac{[H_3O^+][C_2H_3O_2^-]}{[HC_2H_3O_2]}$

Now put all the given values in this expression, we get

$1.8\times 10^{-5}=\frac{(x)(x)}{(0.260-x)}$

By rearranging the terms, we get the value of 'x'.

$x=2.154\times 10^{-3}m$

Therefore, the equilibrium concentration of $H_3O^+$ at $25^oC$ is, $2.154\times 10^{-3}m$ .

4 0

3 years ago

CO, + H2O –H^2 CO^3 The reaction is which type of chemical reaction?

gulaghasi [49]

Answer:

Combination reaction or synthesis reaction

Explanation:

Given reaction:

CO + H₂O → H₂CO₃

The type of reaction shown above is a combination or synthesis reaction. A combination reaction is one in which a single product is formed from two or more reactants.

In the given reaction carbon monoxide combines with water to produce hydrogen carbonate.

The formation of compounds from the union of their constituent elements falls into this category of reactions.

4 0

2 years ago