The correct answer is D
Explanation:
Wave frequency is mainly determined by the number of waves that pass through a specific point. In a diagram, this can be found by analyzing the number of crests (top of the wave) and the space between them. For example, wave B is the one with the lowest frequency because there is only one crest and this shows only one wave passing at a specific point. On the opposite, wave D is the one with the highest frequency because this shows multiple crests and this indicates the frequency is high or that many waves pass through a specific point in a short time.
Answer:
The ranking of matter from the LEAST amount of energy to MOST amount of energy is;
B. Solid, Liquid, Gas
Explanation:
The kinetic energy of the particles that make of matter depends on the temperature of the particles and the particles are constantly vibrating
Solid state (Least amount of energy)
In the solid state, the matter is held in solid (rigid) crystal lattice and the particles are rigidly located next to other adjacent particles and stacked up layer by layer
Liquid state (Intermediate amount of energy)
As the temperature of the particles are increased by heating, the particles (atoms and molecules) gain more kinetic energy and their vibration is increased which on further heating, leads to the breaking of the lattice bond of the solid state and the particles are then readjusted to exist side by side rather than being stacked on one another and the assume the liquid state
Upon further heating the particles in the liquid acquire more energy and are and rather than exist side-by-side, they are able to exist as individual particles in the gaseous form
Gaseous state (Most amount of energy)
From the kinetic theory of matter, the molecules of matter in the gaseous state contains enough energy which is more than the intermolecular forces of attraction such that the particles are able to move and occupy the entire volume of the container in which it is placed
Therefore, the correct option is Solid, Liquid, Gas.
We get the pressure of the hydrogen gas from the difference between the measured pressure and the vapor pressure of water:
total pressure = Pressure of H2 + Vapor Pressure of H2O
1.00 atm = Pressure of H2 + 0.0313 atm
Pressure of H2 = 1.00 atm - 0.0313 atm = 0.9687 atm
From the ideal gas law,
PV = nRT
we can calculate for the number of moles of H2 as
n = PV/RT = (0.9687 atm)(0.246L) / (0.08206 L·atm/mol·K)(298.15 K)
= 0.00974 mol H2
where
V = 246 mL (1 L / 1000 mL) = 0.246 L
T = 25 degrees Celsius + 273.15 = 298.15 K
We use the mole ratio of Na and H2 from the reaction of sodium metal with water as shown in the equation
2Na(s) + 2H2O(l) → 2 NaOH(aq) + H2(g)
and the molar mass of sodium Na to get the mass of sodium used in the reaction:
mass of Na = 0.00974 mol H2 (2 mol Na /1 mol H2)(22.99 g Na/1 mol Na)
= 0.448 grams of sodium
Answer:
Explanation:
N₂O₄
Nitrogen tetroxide.
SO₃
Sulfur trioxide
NO
Nitrogen monoxide
NO₂
nitrogen dioxide
As₂O₅
Arsenic pentoxide
PCl₃
Phosphorus trichloride
CCl₄
Carbon tetrachloride or tetrachloromethane
H₂O
Water
SeF₆
Selenium hexafluoride. Six fluorine atoms are attached with selenium atom.
N₂O₄
Dinitrogen tetroxide. It is reddish-brown liquid.
SO₃
Sulfur trioxide
Radiometric dating
hope this helps
