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2 years ago

Someone Please HELP Me

Chemistry

1 answer:

scoray [572]2 years ago

7 0

Use a calculator to add those thank you ur welcome

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How are properties useful in classifying materials

lukranit [14]

S. Properties can be anything from composition to color to ductility. Without knowing an object's properties, it is impossible to characterize it. For example, looking at some common properties of metals helps to differentiate them from non-metals or metalloids.

5 0

3 years ago

Read 2 more answers

A chamber with a fixed volume is shown above. The temperature of the gas inside the chamber before heating is 25.2 C and it’s pr

rusak2 [61]

Answer:

Explanation:

Given parameters:

Initial temperature T₁ = 25.2°C = 25.2 + 273 = 298.2K

Initial pressure = P₁ = 0.6atm

Final temperature = 72.4°C = 72.4 + 273 = 345.4K

Unknown:

Final pressure = ?

Solution:

To solve this problem, we use an adaption of the combined gas law where the volume gas is fixed. This simplification results into:

$\frac{P_{1} }{T_{1} } = \frac{P_{2} }{T_{2} }$

where P and T are temperatures, 1 and 2 are initial and final temperatures.

Input the parameters and solve;

$\frac{0.6}{298.2} = \frac{P_{2} }{345.4}$

P₂ = 0.7atm

3 0

3 years ago

Give an example of experimental bias

ale4655 [162]

Answer:

chongus because he's the only good one

3 0

3 years ago

A water bottling company is looking to achieve maximum production from the following reversible reaction. If the reaction has re

dybincka [34]

Answer:

Remove the already produced water and allow the reaction to reach equilibrium again.

Explanation:

<em>According to Le Chatelier principle, when a reaction is in equilibrium and one of the factors that influence the rate of reaction is altered, the equilibrium will shift so as to annul the effects of the change.</em>

If the product is continuously being removed from a reaction that is in equilibrium, more product will continued to be formed in another to annul the effect of reduction in the concentration of product.

Hence, in order to maximize production of water in the reaction, the product (water) needs to be removed and the reaction allowed to reach equilibrium again.

7 0

3 years ago

Help please help me

Alenkasestr [34]

Answer: It completely dissociates in water is a characteristic of strong acid.

Explanation:

An acid which dissociates completely to give hydrogen ions $(H^{+})$ is called a strong acid.

For example, HCl is a strong acid and it dissociates completely as follows.

$HCl \rightleftharpoons H^{+} + Cl^{-}$

Strong acids are able to conduct electricity in water as more number of ions are present in the solution as compared to the ions present in a solution of weak acid.

Strong acids increase the concentration of $H^{+}$ ions.

Thus, we can conclude that it completely dissociates in water is a characteristic of strong acid.

8 0

3 years ago