Complete this sentence: Only the most reactive metals in the chart react with______.
1 answer:
Completing the sentence given ; Only the most reactive metals react with<u> water</u>
Reactivity of metals is a chemical property that measures the rate at which metals easily loses their electrons in substances to form a positive ion in a substance.
The most reactive metals react vigorously with water while the least reactive metals does not react with water and dilute acids vigorously but they slowly react with oxygen.
Examples of very reactive metals are :
- Potassium
- sodium and
- Lithium
Hence we can conclude that Only the most reactive metals react with<u> </u>water.
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Answer:
length of column is 140.42 m
Explanation:
in 1 min the soldiers travels 114 steps
so to complete 1 step the time taken by the soldiers =
t =
t =
t = 0.526 s
speed of sound = 343 m/s
length of the column = v × t
= 343 m/s × 0.526 s
= 140.42 m
hence the length of column is 140.42 m