Answer : The partial pressure of 
and 
are, 84 torr and 778 torr respectively.
Explanation : Given,
Mass of = 15.0 g
Mass of = 22.6 g
Molar mass of = 197.4 g/mole
Molar mass of = 32 g/mole
First we have to calculate the moles of and .
and,
Now we have to calculate the mole fraction of and .
and,
Now we have to partial pressure of and .
According to the Raoult's law,
where,
= partial pressure of gas
= total pressure of gas
= mole fraction of gas
and,
Therefore, the partial pressure of and are, 84 torr and 778 torr respectively.
1. 5 atoms
2. 5 atoms
3. 11 atoms
4. 5 atoms
5. 18 atoms
Answer:
200 meters
Explanation:
if u swim for each end 4 times, and its 50 meters long, 50 x 4 = 200 meters
Answer:
5. An element's mass number tells the number of protons in its nucleus.
Atomic
6. Negatively charged particles in an atom are called electrons.
True
7. The cloud model of the atom describes the location of electrons as specific orbits around the nucleus.
Bohr
8. Atoms with the same number of protons but different numbers of neutrons are called isomers.
Isotopes
9. The sum of the protons and neutrons in an atom is called the atomic number.
Mass
10. An object that helps explain ideas about the natural world is called a model.
True
11. Mendeleev arranged his periodic table in order of increasing atomic number.
Mass
12. The rows in the periodic table are called periods.
True
13. Moving across the periodic table from left to right, one finds, in order, metals, then gases, then nonmetals.
Metalloids
14. Another name for a period is a family.
Group
15. On the periodic table, elements in the same column have similar properties.
True
Explanation:
Answer:
science literacy among people has contributed a lot to the growth and progress of our economy considering the state of our society these days. People who have knowledge in science literacy indeed has contributed a lot of things for the betterment of society. Even though we have an unstable society, these “knowledge” has made its way to the top. In fact, it has contributed a lot of change for the economy. People who have the heart in science literacy must also have the heart in helping others so that their knowledge would also benefit those who are in dire need of support and help. Everything and anything these days are answerable by science and I think it would be great and easy to practice more of it.
Explanation:
