Calcium disodium is ionic. When you look at the periodic table, you can see that they are in the same group and that they re both metals. an ionic bond is formed by two or more nonmetals and a covalent bond is formed by two or more nonmetals.
The molarity of a solution : 0.4 M
<h3>Further explanation</h3>
Given
0.2 moles of Potassium Oxide
500 ml of water = 0.5 L
Required
The molarity
Solution
Molarity is a way to express the concentration of the solution
Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution
Assume volume of solution = volume of water(addition of solution volume from volume Potassium Oxide is negligible
Input the value :
M = 0.2 : 0.5
M = 0.4
<span> endothermic is the answer
</span>
Answer:
Protons, neutrons, electrons..
Explanation:
Protons and neutrons consist of quarks which are stuck together by tiny things called gluons.
Hope this helps! :)
Answer: 90.45 joules
Explanation:
The quantity of Heat Energy (Q) absorbed by ice depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
In this case,
Q = ?
Mass of ice = 4.5g
C = 2.010 J/g°C (Though not provided, but the specific heat capacity of ice is 2.010 J/g°C)
Φ = (Final temperature - Initial temperature)
= 10°C - 0°C = 10°C
Then, Q = MCΦ
Q = 4.5g x 2.010 J/g°C x 10°C
Q = 90.45 joules
Thus, 90.45 joules of heat is absorbed by ice.
