Fossils provide a window in Earth's history by showing us how they existed in the past. They can be dated through several ways and can show us how animals and plants have evolved over millions of years. Also, fossils can help us better understand ancient disasters by the inclusion of elements (such as <span>volcanic ash or dust from major space object impacts) and how they affected the life on earth)</span>
Answer: 149
Explanation:
Using the ideal gas equation; PV = nRT
P= Pressure = 0.910 atm, T= Temperature = ?
V= Volume = 4.0L R = Gas constant = 0.08206 L.atm/mol/K
n = number of moles = 0.297
Making 'T' the subject of the formular, we have;
T = P V/ n R = 0.910 x 4 / 0.297 x 0.08206
= 149
<span>The correct
answer between all the choices given is the 4th choice or letter D. I am
hoping that this answer has satisfied your query and it will be able to help
you in your endeavor, and if you would like, feel free to ask another question.</span>
Answer:
<u>Molarity</u><u> </u><u>is</u><u> </u><u>0</u><u>.</u><u>0</u><u>7</u><u>5</u><u> </u><u>M</u><u>.</u><u> </u>
Explanation:
Moles:

RFM of potassium sulphate :

substitute:

In volume of 5.00 l:
