Answer:
The three states of matter are the three distinct physical forms that matter can take in most environments: solid, liquid, and gas. In extreme environments, other states may be present, such as plasma, Bose-Einstein condensates, and neutron stars.
Answer:
The moon revolves around the Earth once every 29.5 days
Explanation:
So around 30 days.
I'm 99.99% sure that it is C. But what I suggest is that you google the trend of electronegativity, then double check.
Answer:
32.04°C will be the final temperature of the solution.
Explanation:
Moles of potassium chloride = 0.200 mol
MAs sof KCl= 0.200 mol × 74.5 g/mol= 14.9 g
Enthalpy of solvation of potassium nitrate =
Energy released when 0.200 moles of KCl is dissolved in water = Q
(1 kJ = 1000 J)
Heat released on dissolving 0.200 moles of KCl is equal to heat absorbed by water = Q
Mass of solution , m= 80.0 g +14.9 g = 94.9 g
Specific heat of water = c = 4.184 J/g°C
Initial temperature of the water =
Final temperature of the water =
32.04°C will be the final temperature of the solution.
Answer:
Explanation:
In this case, Gay-Lussac's law is used to compute the required temperature, as it relates pressure and temperature, by knowing that the atmospheric standard temperature is 25 °C, as follows:
Thus, the initial pressure is known as 14.7 psi and the initial temperature 25 °C, which correspond to the atmospheric conditions. Nonetheless, the pressure into the cooker, should be:
Since the 12.5 psi are above the atmospheric pressure. In such a way, the temperature inside the cooker turns out:
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