<u>Answer:</u>
a) number of neutrons
<u>Explanation:</u>
A sodium ion is formed when an electron is removed from a sodium atom. This means that the atom's number of electrons changes, but the number of neutrons remains unchanged.
However, as the number of electrons changes, the electric charge and the electronic structure change, which means that a sodium atom and a sodium ion do not have the same number of electrons, nor do they have the same electric charge or electronic structure.
Therefore, option a) is the correct option.
CL- is Chloride, so your answer would be C.Chloride.
First take all percents and make them grams. Since you're not given a overall molar mass you can assume it is 100 and therefore the percents are their masses.
So you have 14.31g Carbon, 1.2g Hydrogen, and 84.49g of Chlorine. Next you divide each by their molar masses to get moles of each.
Carbon= <u>14.31</u>g Hydrogen= <u>1.2</u>g Chlorine= <u>85.49</u>g
12.01g 1.01g 35.45g
= 1.19moles = 1.188moles = 2.411moles
Next you divide each of those numbers by the smallest, in this case, Hydrogen.
Thus,
Carbon= <u>1.19moles</u> Hydrogen= <u>1.188moles</u> Chlorine= <u>2.411moles</u>
1.188moles 1.188moles 1.188moles
=1.002 =1 =2.02
These are all close enough to round, so your final empirical formula is: CHCl2
Hope that helps!!
I'm assuming you are supposed to complete the given statement? In a water molecule, the bonds between the hydrogen and oxygen atoms are polar covalent bonds, where electrons are unequally shared. (Oxygen is significantly more electronegative and holds onto the electrons for most of the time)
Answer:
B. Some plants might die due to a shortage of important nutrients.
Explanation:
Decomposers are organisms that consume dead, decaying material in the ecosystem. They can then recycle these nutrients back into the soil to be used by plants, continuing the nutrient cycle.
The amount of dead plant and animal matter would <em>increase </em>because there is nothing to breakdown the matter. Animals cannot photosynthesise under any circumstances. The lifespan of plants and animals would not be affected.
However, without decomposers recycling essential nutrients such as nitrogen back into the soil, the plants might die because they cannot perform important tasks like protein synthesis.
