The heat in the core of the Earth has several sources including:
1- The heat produced from the decaying of radioactive elements
2- The heat that was originally produced during the formation and accretion of the planet itself (This heat has not yet faded)
3- The heat produced during friction when denser material and elements sink into the planet's center.
The mass of the silver : 4.6 g
<h3>Further explanation </h3>
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
∆T = temperature difference :
The specific heat of silver is 0.235 J/gºC
Q = heat = 26 J
The mass :
Lithium has one available electron in the outer (valence) shell (2s¹).
1s² 2s¹
Answer:
2Na + 2H20--> 2NaOH+H2
............. this is the ans
Coefficients are used here to balance the number of elements in the products and reactants. Coefficients are numbers that are placed in front of a chemical formulas in an equation. Hope it's useful.