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yulyashka [42]
4 years ago
11

Materials that allow water to pass through them easily are

Chemistry
2 answers:
yaroslaw [1]4 years ago
7 0
I think that it would be permiable. I hope that this helped!
Inga [223]4 years ago
5 0

Answer: permeable

Explanation:

Permeable: Materials which allow water to pass through them. Example: Sand

Impermeable: Materials which do not allow water to pass through them. Example: Clay

Saturated: Solutions in which no more solute can be added to the solution at that particular temperature. Example: When sugar can be seen in the water

Unsaturated: Solutions which contain less than the maximum amount of solute that can be present at that temperature. Example: When sugar completely dissolves in water.

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A 3.4 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.9 g. The two substances react, rel
natima [27]

Answer: 2.7 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

NaHCO_3(aq)+CH_3COOH(aq)\rightarrow CH_3COONa(aq)+H_2O(l)+CO_2(g)

Given: mass of sodium hydrogen carbonate = 3.4 g

mass of acetic acid = 10.9 g

Mass of reactants = mass  of sodium hydrogen carbonate+ mass of acetic acid = 3.4 + 10.9= 14.3 g

Mass of reactants = Mass of products in reaction vessel + mass of carbon dioxide (as it escapes)

Mass of  carbon dioxide = 14.3 - 11.6 =2.7 g

Thus the mass of carbon dioxide released during the reaction is 2.7 grams.

7 0
3 years ago
What substance is acting as the Brønsted-Lowry base in the forward reaction below? H2O + HCI ----> H3O+ CI-
yarga [219]
H2O is the Bronsted-Lowry base because it accepts the hydrogen ion to become H3O after the reaction is complete.
6 0
3 years ago
A titration graph shows little resistance to a change in pH at the start and has a single equivalence point of 8.6.
konstantin123 [22]

Answer: A weak acid titrated by a strong base

Explanation:

The graph refers to the titration of a weak acid such as Hydrofluoric acid with a strong base such as Sodium Hydoxide. What happens is that as the process begins, the pH rises quickly as there is little resistance to the base.

After some time the solution formed begins to act as a buffer between the remaining acid and the base. This reduces the pH change rate and will continue until the base overcomes the solution's buffering capacity.

The Equivalence point which is where the acid will be at it's base form, will be at a pH of 8.6.

I have attached a graph showing the process for better understanding.

3 0
3 years ago
A cubic object has a volume of 250 cm. What is its density if its mass is 5 points<br> 257.3 g?
ira [324]

Answer:

<h3>The answer is 1.03 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 257.3 g

volume = 250 cm³

We have

density =  \frac{257.3}{250}  \\  = 1.0292

We have the final answer as

<h3>1.03 g/cm³</h3>

Hope this helps you

8 0
3 years ago
Sibling rivalry may occur when:
sweet [91]

Answer:

Explanation: true

7 0
3 years ago
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