Answer:
D. The number of it's protons
P4O9 is an oxide of phosphorous
so it will named accordingly
There are four phosphorous atoms and nine oxygen atoms
four will be represented as "tetra"
Nine will represented as "non"
so the name of the compound will be
tetraphosphorous nonoxide
Answer:
O4Br9
Explanation:
Tetra means 4 and nona means 9. Just use these prefixes to decide how many of each element you have.
Answer:
A) at the rod's geometrical center
Explanation:
Let us assume that the rod is replaced by water. And now this water volume is in translational and in rotational equilibrium.
Therefore, a net upward force must have been exerted by the surrounding liquid which acts at the center of mass of the water volume.
This force determines through the geometric center of the column of the cylindrical water
Moreover, the force is also independent of submerged body into it
Hence, the first option is correct
Temperature and salinity changes the density of water.
<h3>Effect of Temperature and salinity on water</h3>
Temperature and salinity directly affect density of water. Water that low temperature is more denser than water that has high temperature while on the other hand, Freshwater which has no salt is less denser than seawater which has more salt concentration so we can conclude that temperature and salinity changes the density of water.
Learn more about salinity here: brainly.com/question/20283396
