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
Answer:
TRUE
Explanation:
Alzheimer's is a progressive degenerative disease that causes cognitive and memory impairment, as well as a variety of neuropsychiatric symptoms and behavioral changes that worsen over time. The causes of alzheimer's are still unknown, but researchers believe that for most people, Alzheimer's disease is caused by a combination of genetic, lifestyle and environmental factors that affect the brain over time.
Thus, there is a linear relationship between age and onset of alzheimer's, the older a person, the greater the chance of the disease to manifest. Usually the disease comes after age 75. The case of Sally's mother, who was diagnosed at a very young age at 50, gives evidence that her illness is manifested by genetic factors.
Answer:
Polyunsaturated fatty acids; omega 6 fats.
Explanation:
Polyunsaturated fatty acids like the omega-6 fatty acids e.g linoleic acid (LA) has been found to lower blood cholesterol levels (LDL) and enhance HDL (the good cholesterol).
Answer:
A fact is a statement (a claim) about something that is true
Non Fact is something (such as a statement) that is not a fact
Explanation:
