Answer:
Imagine that x (ounce) is the amount of paint used to paint the flag
Base on the information, we know that:
2/3 + 3/5 + 2/15 + x = 2
x = 2 - 2/3 - 3/5 - 2/15
x = 30/15 - 10/15 - 9/15 - 2/15
x = 9/15 = 0.6 (ounce)
So the amount of paint used to paint the flag is 0.6 ounce.
Answer:
Explanation:
1 mol of methane = 6.02 * 10^23 molecules
6.70 mol of methane = x
Cross multiply
x = 6.70 * 6.02 * 10^23
x = 4.033 * 10^23 molecules.
Explanation:
Upon dissolution of KCl heat is generated and temperature of the solution raises.
Therefore, heat generated by dissolving 0.25 moles of KCl will be as follows.
= 4.31 kJ
or, = 4310 J (as 1 kJ = 1000 J)
Mass of solution will be the sum of mass of water and mass of KCl.
Mass of Solution = mass of water + (no. of moles of KCl × molar mass)
= 200 g +
= 200 g + 13.625 g
= 213.625 g
Relation between heat, mass and change in temperature is as follows.
Q =
where, C = specific heat of water =
Therefore, putting the given values into the above formula as follows.
Q =
4310 J =
Thus, we can conclude that rise in temperature will be .
Answer:
B
Explanation:
Cuz they are supported once discovered and then widely spread then accepted
Answer:
the Milky Way galaxy
Explanation:
It's between the Sagittarius and Perseus Arms of the Milky Way.