If the potassium ions were represented by spheres, the smaller one is the ion and the bigger one is the (neutral) atom.
Generally, metallic atoms (such as potassium) readily form cations (positively-charged ions) by losing electrons in their outer shells. By losing these electrons, the atoms are expected to be smaller in size. However for nonmetals, they readily gain electrons to form anions (negatively-charged ions). By gaining these electrons in their outer orbital shells, the ions generally then becomes larger.
Answer:
answer it by yourself and own way
The volume of the solution is given below which can be calculated using the molarity formula as 2.18 litres.
<h3>Define the molarity of a solution.</h3>
Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution.
Given data:
M= 0.420M
mass = 64.0 grams
Molar Mass= 74g/mol
To find:
The volume of solution=?
The calculation for a number of moles:
n= 
n= 
n= 0.91 moles
Molarity= 
V= 
V= 2.1768 litres
Thus, the volume of the solution is 2.18 litres.
Find more information about Molarity here:
brainly.com/question/26873446
#SPJ1
<h3>
Answer:</h3>
15.0 meters
<h3>
Explanation:</h3>
- Kilometers are units used to measure length.
- Length is also measured using other units which include meters, centimeters, decimeter, millimeter, etc
- To convert one unit to another we use conversion factors.
In this case to know inter-conversion between units of measuring length, we consider the following;
Kilometer(km)
10
Hectometer(Hm)
10
Decameter(dam)
10
Meter (M)
10
Decimeter (dm)
10
Centimeter (cm)
10
Millimeter (mm)
Therefore, to convert km to meter we use the conversion factor (10×10×10) 1000 m/km.
Thus;
0.0150 km is equivalent to;
= 0.0150 km × 1000 m/Km
= 15.0 meters
Thus, 0.0150 km is equivalent to 15.0 meters.
