Answer:
Electricity can be present in a static charge, while magnetism's presence is only felt when there are moving charges as a result of electricity. In simple words, electricity can exist without magnetism, but magnetism cannot exist without electricity.
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Explanation:
Answer:
Option E
Explanation:
From the question we are told that:
Amount of sand in percentage 
Sample size
Note:After being dumped in the river repeatedly the sugar melts away leaving behind the insoluble sand
Generally the equation for Amount of sand content is mathematically given by
Therefore
After drying, the mass of the contents of the bag equals
Option E
What is the oxidation number of manganese (Mn) in
potassium permanganate (KMnO4)?
+3
+5
+6
+7
The oxidation number of manganese (Mn) in potassium
permanganate (KMnO4) is +5.
The number of protons and neutrons in the nucleus : 92 and 146
<h3>Further explanation</h3>
Given
Mass number = 238
Atomic number = 92
Required
Protons and neutrons
Solution
Mass number=number of protons + neutrons
Atomic number=number of protons=number of electrons
Atomic number = 92⇒number of protons=92
Number of neutrons = mass number - atomic number
Number of neutrons = 238 - 92 = 146
