Answer:
The mass number
Explanation:
neutrons + protons = mass number
Answer:
An if/then statement. If ____happens, then _____ happens.
Explanation:
Answer:
The correct answer is - DNA (check image).
Explanation:
In this diagram, The W mark is the nucleus of the cell X is the chromosome Y represents the DNA and Z is the gene. Gene is the segment of the DNA and DNA is the pat of the chromosome with histone. Chromosomes are present in the nucleus of the cell. These all are the structures of the genetic structures.
Thus, the correct answer is - DNA.
Given :
12.9 mol of Au.
To Find :
How many atoms are in 12.9 moles Au.
Solution :
We know, 1 mol of any element/molecules contains
.
Number of atoms in 12.9 moles of Au is :

Therefore, number of atoms in 12.9 moles of Au is
.
Hence, this is the required solution.
<span>Solid lithium oxide, the basic anhydride of lithium hydroxide reacts with water to make lithium ions and hydroxide ions.
Li2O(s) + H2O(l) --> 2LiOH(aq) ...... molecular equation
Li2O(s) + H2O(l) --> 2Li+ + 2OH- ..... ionic equation, and net ionic equation
BUT!!!!! The decomposition of potassium chlorate into KCl and O2 gas does not take place in aqueous solution. The equation should be.
2KClO3(s) --> 2KCl(s) + 3O2(g)
No ionic equation. There is nothing in solution.
This reaction does not occur in aqueous solution.
2Na(s) + I2(g) --> 2NaI(s)
No ionic equation. There is nothing in solution.
Clearly, to have an ionic equation there must be ions, and to have ions the salts have to be dissolved in water.</span>