Hey there,
Smelting's main use is to produce a base metal from its ore
Hope this helps :))
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Answer:
The reaction will move to the left.
Explanation:
<em>Ba(OH)₂ = Ba²⁺ + 2OH⁻,</em>
<em>Ba(OH)₂ is dissociated to Ba²⁺ and 2OH⁻.</em>
- If H⁺ ions are added to the equilibrium:
H⁺ will combine with OH⁻ to form water.
<em>So, the concentration of OH⁻ will decrease and the equilibrium is disturbed.</em>
<em />
<em>According to Le Châtelier's principle: </em>when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.
- So, the reaction will move to the right to suppress the effect of decreasing OH⁻ concentration.
- The base will dissociate to form more OH⁻ and thus, the quantity of Ba(OH)₂ will decrease.
<em>So, the right choice is: the reaction will move to the left, is the choice that will not happen to the equilibrium.</em>
The question in English is "<span>Determine the mass, in kg, of a material that is contained in a volume of 18L. It is known that the material density is 0.9 g/cm 3"
Answer:
</span>
We can use a simple
equation to solve this problem. <span>
d =
m/v</span><span>
<span>Where </span>d <span>is
the density, </span>m <span>is
the mass and </span>v is the volume.
d = </span>0.9<span> g/cm³
m = ?
v = </span>18 L = 18 x 10³ cm³<span>
By applying the equation,
<span> 0.9 g/cm³ = m / </span></span>18 x 10³ cm³<span>
m = 0.9 g/cm³ x </span>18 x 10³ cm³<span>
<span>
</span>m = 16200 g
m = 16.2 kg
Hence, the mass of
18 L of material is 16.2 kg.</span>
This question is incomplete because you lack the options. But it can be answered based on my knowledge.
Two types of mixture could be: homogeneous and heterogeneous
A mixture is a term that refers to the combination of two or more components joined but not chemically combined. Mixtures can be classified as follows:
- Homogeneous: Are characterized by having a uniform texture and appearance, their components are not distinguished.
- For example: water + grapes = wine
Homogeneous mixtures can be:
- Solutions: The mixtures formed are characterized by being formed with components that do not react chemically with each other, but that can modify their physical properties when they become part of the solution.
- For example: coffee + milk = Coffee
There are also Colloids, a type of mixture formed by particles of one or more substances that are dispersed in another substance called a dispersing medium.
- For example Gelatin powder + Water = Gelatin.
They are the intermediate mixtures between homogeneous and heterogeneous.
- Heterogeneous: Are mixtures in which it is possible to observe their components due to the discontinuity with the naked eye.
- For example Milk + cereal = Cereal
Learn more in: brainly.com/question/24713315
5cm
Explanation:
you have to divide 100cm by 20 sec
