Answer:
it increases economical level .water will be polluted.water cycle do not take place nicely.it causes global warming and acid rainfall
The options are missing and they are;
Select one:
A. By seeing it flying above the water
B. By listening for it in the air
C. By listening for it underwater
D. None of the above: it won’t be able to detect it in time.
Answer:
OPTION C is the correct answer:By listening for it underwater
Explanation:
Due to the fact that the ships and other boats have underwater microphones because on most cargo ships the engine is to loud so they use microphones underwater to detect torpedos. Thus, the vessel can detect the torpedo by listening under water
The objects that look black are all tied for first place.
Sodium sulfide formula is Na₂S.
Na is a group 1 element, it has one valence electron therefore it is ready to give that valence electron and form an ionic bond. Once it gives out the electron it becomes a positive ion - Na⁺
sulfur is a group 6 element, has 6 electrons its outer shell and needs to gain 2 more electrons to become stable. Once it gains 2 electrons it becomes a negative ion - S²⁻.
Since Na only gives out 1 electron, S²⁻ ion needs to take in 2 electrons, therefore forms an ionic compound with 2 Na⁺ ions.
decomposition of Na₂S is as follows;
Na₂S(s) --> 2Na⁺(aq) + S²⁻ (aq)
Answer:
it has three atoms of hydrogen on each side.
Explanation:
it must be equal on both sides and answer D. is the most specific