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3 years ago

4) What is the order of the energy pyramid.?

1 answer:

4 0

Each step of the food chain in the energy pyramid is called a trophic level. Plants or other photosynthetic organisms (autotrophs) are found on the first trophic level, at the bottom of the pyramid. The next level will be the herbivores, and then the carnivores that eat the herbivores.

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At a given temperature, 4.06 atm of H2 and 3.5 atm of Cl2 are mixed and allowed to come to equilibrium. The equilibrium pressure

Llana [10]

Answer: The value of $K_p$ for the given chemical reaction is 0.1415

Explanation:

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of the products and the reactants each raised to the power their stoichiometric ratios. It is expressed as $K_p$

For a general chemical reaction:

$aA+bB\rightarrow cC+dD$

The expression for $K_p$ is written as:

$K_p=\frac{p_{C}^cp_{D}^d}{p_{A}^ap_{B}^b}$

For the given chemical equation:

$H_2(g)+Cl_2(g)\rightleftharpoons 2HCl(g)$

The expression for $K_p$ for the following equation is:

$K_p=\frac{(p_{HCl})^2}{(p_{H_2)}(p_{Cl_2})}$

We are given:

$p_{HCl}=1.418atm\\p_{H_2}=4.06atm\\p_{Cl_2}=3.5atm$

Putting values in above equation, we get:

$K_p=\frac{(1.418)^2}{(4.06)\times (3.5)}\\\\K_p=0.1415$

The value of $K_p$ for the given chemical reaction is 0.1415

5 0

3 years ago

Which mineral property is being tested below?

Annette [7]

The answer is C. Streak

4 0

3 years ago

Is it easier to make that change with weak or strong molecular attraction?

Gnom [1K]

Answer:

Strong molecular attraction chlorine and the hydrogen connect.

Explanation:

8 0

3 years ago

Describe the solubility of al(oh3 with respect to ph.

BartSMP [9]

The solubility of Al(OH)3 with respect to pH is soluble at low pH, insoluble in pH-neutral solution, and soluble at high pH. We can express it as this:
Solubility equilibrium expression for Al(OH)3 is
Al(OH)3 <==> Al3+(aq) + 3OH-(aq) 
Initial 0 1.0x10^-3 M 
change +s +3s
Remember that solubility is used in chemistry to describe the properties of a solid compound that is mixed with and fully dissolves in a fluid without leaving any undissolved particles.

6 0

3 years ago

What do elements in group 2A have in common in the periodic table?

In-s [12.5K]

The alkali metals are lithium, sodium, potassium, rubidium, cesium and francium, and the alkaline earth metals are beryllium, magnesium, calcium, strontium, barium and radium. Hydrogen is placed on the periodic table above group 1a but is not considered part of the group.
Refer to: https://www.reference.com/.../group-1a-group-2a-elements-common-94c6bc654f3d5a4...

6 0

3 years ago