Answer:
(a) gas c has the highest partial pressure
(b) gas b has the lowest partial pressure
(c) 0.233 atm
Explanation:
In the given figure, the number of atoms of each gas is:
gas a = 4
gas b = 3
gas c = 5
gas = 4
Using the total gas pressure of 0.931 atm and the partial pressure of each gas is directly proportional to its mole fraction. Therefore,
Partial pressure of gas a = 4/(4+3+5+4) * 0.931 = 0.233 atm
Partial pressure of gas b = 3/(4+3+5+4) * 0.931 = 0.175 atm
Partial pressure of gas c = 5/(4+3+5+4) * 0.931 = 0.291 atm
Partial pressure of gas = 4/(4+3+5+4) * 0.931 = 0.233 atm
(a) gas c has the highest partial pressure
(b) gas b has the lowest partial pressure
(c) 0.233 atm
Answer:
The answer is: A - Dimensions of the paper.
Explanation:
"A" is the independent variable because it is the only thing that you are manipulating in each trial (i.e. folding the paper in half each time). "B" is the dependent variable because it is what you are measuring in every trial. "C" and "D" remain constant (they aren't changed at all) so they are neither dependent or independent variables.
Answer:
Li
Explanation:
- In this case, "least exothermic" means that the correct answer is the least reactive of the alkali metals.
- The lower the ionization energy is, the higher the reactivity of the alkali metal is.
With the above information in mind, and remembering that ionization energy tends to decrease as we go down the group in the periodic table, the correct answer is Li, as it has the highest ionization energy among the alkali metals.
Answer:
Nucleus and mitochondria. Organism.
Explanation:
The two main organelles are the nucleus and the mitochondria . The nucleus is boss of the factory(controls everything). The mitochondria is the power house of the cell (provides the energy). Humans are organisms (made of organs systems working together) . Another example is plants they are also organisms