Answer: In 1858, Pasteur filtered air through a gun-cotton filter and, upon microscopic examination of the cotton, found it full of microorganisms.
I hope this helped!
Katrina learned about curling by watching and focusing on the techniques used by the olympic players. By watching so much, she learned the movements and basic rules of the game. This is an example of visual learning which is also cognitive learning :-)
Heres 4, pick your favorites haha
.Trying to Keep Up with Others
.Forgetting About the Unexpected
.Using Outdated Software
.Forgetting About the Small Items
Answer:
1.030-0.545=0.485 grams of oxygen in compound.
Convert grams of Al and grams of O into moles:
0.545g Al x 1 mol Al/26.98g Al = 0.0202 mol Al
0.485g O x 1 mol O/16.00g O = 0.0303 mol O
Next we divide the moles of both of them by the lowest number to get simplest ratio
0.0202/0.0202 = 1 Al
0.0303/0.0202 = 1.5 O
Next we multiply all numbers until we get a whole number for each one. In this case 2 works:
Al 1 x 2 : O 1.5 x 2
and we are left with Al2O3
Explanation:
Hope this helps :D
