Those items float.
Because the items are less dense than water, they float. If they are more dense than water, they sink.
Answer: -
The next low tide occur at 12 noon, because the coastline will turn 90 degrees from the moon.
Explanation: -
Time taken for the earth to rotate = 24 hours.
Each day there are two high tides and low tides.
Thus the duration between two high tides is 12 hours and between 1 high tide and 1 low tide is 6 hours.
Thus the time of next low tide is 6 am + 6 hours = 12 noon.
Now in 24 hours the coastline turns 360 degrees.
In 6 hours it will travel (360 x 6) / 24 =90 degrees.
Thus the next low tide occur at 12 noon, because the coastline will turn 90 degrees from the moon.
Answer : The net ionic equation will be,
Explanation :
In the net ionic equations, we are not include the spectator ions in the equations.
Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.
The balanced ionic equation between zinc and hydrochloric acid will be,
The ionic equation in separated aqueous solution will be,
In this equation, 
is the spectator ion.
By removing the spectator ion from the balanced ionic equation, we get the net ionic equation.
The net ionic equation will be,
Answer:
true
Explanation:
This layer will prevent moisture from reaching the metal and therefore prevent rust. oil paint especially
Answer:
C. Atom
The formula weight is calculated by the sum( adding) of the atomic masses for every atom in the formula
