Answer:
Explanation:
Hello,
In this case, we can use the ideal gas equation:
So we know the temperature, pressure and volume, therefore we can easily compute the required moles as shown below:
Best regards.
B.heterogeneous mixtures
Explanation:
A heterogeneous mixture is a substance containing combination of different ingredients in different ratios.
- Heterogeneous mixtures have their constituents in different phases unlike homogeneous mixtures.
- Solutions are homogeneous of solutes and solvents that are uniformly mixed.
Heterogeneous mixtures can be subdivided into:
Gas liquid mixtures e.g aerated drinks
Liquid- solid mixtures e.g sand-sugar solution
gas solid mixtures e.g smoky air
Learn more:
Heterogeneous mixtures brainly.com/question/1446244
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Answer:
The answer is
<h2>8.4 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass = 88.2 g
density = 10.5 g/cm³
The volume is
We have the final answer as
<h3>8.4 mL</h3>
Hope this helps you
Answer: 1. All of these
Explanation:
The rate of a reaction depends on following factors:
1. increasing the concentration of reactants: means there is more particles of reactants per unit volume.Thus more particles can collide and hence the rate of reaction increases.
2. increasing the temperature- the particles move faster and undergo more collision which leads to an increase in the rate of the reaction.
3.adding an appropriate catalyst: addition of catalyst lowers the activation energy and thus more reactants can cross the energy barrier. Thus it leads to formation of more products hence an increase in the reaction rate.
Thus the rate of a reaction can be increased by all of these.