Sodium is a highly reactive metal and chlorine is a toxic gas, but when they come together the resulting material, sodium chloride, is essential for life. Which of the following is true when sodium and chlorine are brought into contact with one another?
A) They form a heterogeneous mixture.
B) They form a homogenous mixture.
C) They neutralize each other.
D) They form a compound.
D
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What is one reason that the effectiveness of CITES is limited?
A. The treaty was written to protect the rights of poachers. B. No member countries have signed the treaty. C. Member countries have the ability to exempt themselves from protecting any listed species. D. Member countries have the ability to enforce their own laws world-wide E. The mandated fines are unreasonably heavy.
You are vacationing at Disney World near Orlando, Florida (28.5°N), on June 3. At what altitude will you observe the noon Sun? Include correct horizon. (Show work.) The problem has been started for you.
What will be an ideal response?
Pacific storms move toward Alaska more during the cold months than the warm months
Indicate whether the statement is true or false
Spring tide occurs about ________
A) once per month B) once per season C) once per year D) twice per month E) twice per year