| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
Which of the following is the smallest component of an element that still retains the properties of the element?
atom |
|
molecule |
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neutron |
|
element |
An atom is the smallest component of an element that still retains the properties of the element.
In the heart, blood flows from the __________ ventricle to the lungs then back to the heart via the __________ atrium.
right, right |
|
right, left |
|
left, left |
|
left, right |
The two largest veins in the body, the venae cavae, pass blood to the right ventricle which pumps the blood to the lungs through the pulmonary artery. Blood picks up oxygen in the lungs and returns it to the left atrium via the pulmonary vein.
212°F is how many °C?
\(135 {5 \over 9}\) |
|
0 |
|
100 |
|
-100 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
__________ is caused by a lack of Vitamin C.
diabetes |
|
shingles |
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anemia |
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scurvy |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
electron shells |
|
atomic mass units |
|
protons |
|
electrons |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.