Answer: 462.00 Joules of heat will be needed to change the temperature of copper from 20° C to 60° C.
Explanation:
Mass of copper,m = 30.0 grams
Specific heat capacity of copper,c = 
462.00 Joules of heat will be needed to change the temperature of copper from 20° C to 60° C.
We are given with the mass of Arsine (
The mass of arsine is 15g
there is a relation between moles, mass and molar mass of any compound which is
The molar mass of Arsine = atomic mass of As + 3X atomic mass of H
the molar mass of Arsine = 74.92 + 3X 1 = 77.92 g/mol
Let us calculate the moles as
The answer would be 2. <span>an ion polarizes a nearby neutral atom, so that the part of the atom nearer to the ion acquires a charge opposite to the charge of the ion, and the part of the atom farther from the ion acquires a charge of the same sign as the ion
In neutral atoms, the negative and positive charge spread evenly. The charge from an ion could create an electric field that will attract the charge of the neutral atoms.
The neutral atoms charge sum still zero, but the distribution of charge could be changed.</span>
A mole is mean the atomic number of 12 grams of carbon 12.
