Answer:
Answer choice A
Explanation:
When an electron is transferred to another atom, both atoms involved become ions.
<h3>
Answer:</h3>
= 5.79 × 10^19 molecules
<h3>
Explanation:</h3>
The molar mass of the compound is 312 g/mol
Mass of the compound is 30.0 mg equivalent to 0.030 g (1 g = 1000 mg)
We are required to calculate the number of molecules present
We will use the following steps;
<h3>Step 1: Calculate the number of moles of the compound </h3>

Therefore;
Moles of the compound will be;

= 9.615 × 10⁻5 mole
<h3>Step 2: Calculate the number of molecules present </h3>
Using the Avogadro's constant, 6.022 × 10^23
1 mole of a compound contains 6.022 × 10^23 molecules
Therefore;
9.615 × 10⁻5 moles of the compound will have ;
= 9.615 × 10⁻5 moles × 6.022 × 10^23 molecules
= 5.79 × 10^19 molecules
Therefore the compound contains 5.79 × 10^19 molecules
. 1s2 2s2 2p6 3s2 3p6 3d10 One point is earned for the correct configuration.
C would be the right answer
Answer:
C. glaciers
Explanation:
Glaciers are a part of the hydrosphere
The hydrosphere is the amount of water on the earth. It includes water in the different states found on the earth surface and within the subsurface. Water does exists as solids, liquids and in vapor form on earth.
- Glacier is the solid form of water on the earth crust.
- It is a significant part of the hydrosphere.
- Most glaciers are found around the polar regions and high altitude zones on the earth.
- It is an important source of fresh water for the ecosystem