On the scale of the cosmic calendar, in which the history of the universe is compressed into 1 year, how long is the average human life span?
A) 0.2 millisecond
B) 0.2 second
C) 2 seconds
D) 2 minutes
E) 2 hours
B) 0.2 second
Physics & Space Science
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In a polyethylene long-chain molecule, the carbon-carbon and hydrogen-carbon bonds are all ______________bonds.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
When solutions of AgNO3 and CaCl2 are mixed, which type of reaction is likely?
a. Combination b. Double-replacement c. Decomposition d. Single-replacement
Physics & Space Science
The crust on the near side of the Moon is on average thinner than the crust on the far side, due to our tidal pull on the Moon
Indicate whether the statement is true or false
Physics & Space Science
The electron spin quantum number can take on what values?
What will be an ideal response?
Physics & Space Science