Answer:
The particles in most solids are closely packed together. Even though the particles are locked into place and cannot move or slide past each other, they still vibrate a tiny bit. ... However, ice is different from most solids: its molecules are less densely packed than in liquid water. This is why ice floats.
Explanation:
Answer:
1.58L
Explanation:
Given parameters:
Initial volume = 1.2L
Initial temperature = 28.5°C = 28.5 + 273 = 301.5K
Final temperature = 125°C = 125 + 273 = 398K
Unknown:
New volume = ?
Solution:
Volume and temperature relationship is resolved using the Charles's law.
The law states that "the volume of a fixed mass of a gas varies directly as its absolute temperature if the the pressure is constant".
So;
=
V1 is the initial volume
T1 is the initial temperature
V2 is the new volume
T2 is the new temperature
=
301.5V2 = 477.6
V2 = 1.58L
Answer: D=8900g/L
Explanation:
Density is mass/volume. Mass in in grams and volume is in liters.
1 cm³=1 mL
With this conversion, we can convert cm³ to L.
When we convert, we cancel out cm³ and mL to get L alone. The density is 8900 g/L.
<u>Answer:</u>
<em>The molarity of the solution is </em>
<em></em>
<u>Explanation:</u>
The Balanced chemical equation is
Mole ratio of : KCl is 1 : 1
So moles = moles KCl
So Molarity
= 0.000402M or mol/L is the Answer
(Or) is the Answer
Answer:
Convert the mass of each element to moles using the molar mass from the periodic table. Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number. This is the mole ratio of the elements and is represented by subscripts in the empirical formula.
Explanation:
The result is the molecular formula