The answer is C. The sun heats waters near the equator, which then move toward the polls where the waters cool.
2.1653 g
Explanation:
The molar mass of Rubidium is;
85.468 g/mol
Therefore the moles of Rubidium that reacted with oxygen is;
1.98 / 85.468
= 0.0232 moles
If every two moles of Rubidium reacts with one mole of oxygen then the amount of oxygen consumed in the chemical reaction is;
0.5 * 0.0232
= 0.0116 moles
The molar mass of an oxygen atom is 16 g/mole. Then the amount of O in grams consumed is;
0.0116 * 16
=0.1853 g
The final weight of the Rubidium II Oxide is;
1.98 + 0.1853
= 2.1653 g
We Know, Atomic number of Uranium = 92
Molar mass in given species = 233
Now, Molar mass = Number of Protons + Number of Neutrons
233 = 92 + x
x = 233 - 92
x = 141
So, your final answer is 141
Hope this helps!
It is important to note that whenever the physical environment is changed animals and plants have to adapt or they will go extinct. Overtime environments change in some instances is due to the slow movement of the continents which can take millions of years, Earth's climate also causes changes in the environment over a long period of time. Additionally, some changes can also be caused by people since people can change forests into farms or intro concrete streets as such.
The answer is ii) the liquid called tea.
That is ii) the liquid called tea is a mixture.
the liquid called tea is a homogeneous mixture that contains organic and inorganic compounds, sugar(organic carbohydrate),tea leaf extract(organic), water(inorganic).
Whereas (iii) distilled water, is a pure substance while (I) gello is a colloid.
