Answer: last one
300 L
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The photoelectric effect occurs when light shines on a metal. ... Light of any frequency will cause electrons to be emitted.
Answer:
Corresponds to a covalent compound.
Explanation:
Both Boron and Fluorine are nonmetals, forming a covalent bond, the result of which is the boron trifluoride compound (BF3). This is a highly toxic gas.
It is synthesized by the reaction between hydrogen fluoride and boron oxide:
B2O3 + 6 HF → 2 BF3 + 3 H2O
Answer:
Explanation:
scientific notation of 750000 is
7.5*10^5
