Answer:
Oxygen has eight neutrons
Answer:
766.09g
Explanation:
Divide the volume of the iridium with its density.
Density= mass÷volume
When atoms react, they tend to achieve an outer shell having eight electrons. Many of the representative elements (sodium and chlorine for instance) follow this rule when they form ions. In the ionic case they achieve the noble gas shell configuration by either a gain or loss of electrons.
1. The problem: THE DECLINING OF CORAL COVER OF REEFS.
Hypothesis: Vinegar can be used to kill crown of thorns star fish [COTS].
Procedure: The COTS were injected with 20 milliliters of household vinegar.
Result: All the COTS died within forty eight hours after they were injected.
2. When a new evidence is discovered, scientists ought to have an open mind about it and test it out to discover whether it is true or not. If the evidence is prove right, then necessary adjustments must be made to reflect the new evidence. This is very important because, science depend on continuous discovery.<span />
Ok so to add decimals, we add them like normal numbers..
6.8321 g
+7.5248 g
------------------
3.4669
And since we are trying to round, we make it..
3.5, since the 4 rounds up to a 5 because of the 6.