Answer:
The definition of an absolute reference frame would be that fixed reference frame that every observer would rest at all times in his/her state of motion.
Explanation:
The answer is (3) 11.2 L of N2(g). When the choices are all gases, the number of molecules depends on the molar number of the gas. Under the condition of STP, the molar number of a gas is depends on volume only. So the same volume of gas has the same number of molecules.
Yes, that is correct. There are 1.25 moles in one liter of solution, and there are about 98 grams in one mole of H2SO4. Using this information we can readily eliminate A and B as answers, as there would be far more than 36 grams in 2.9 and 5.8 liters of this solution. 98 x 1.25 = 122.5 grams of H2SO4 in one liter, and we can then divide 36 into 122.5 to arrive at 0.29L.
A platinum wire is dipped into a strontium nitrate solution. Then inserted into a burner flame, then the strontium atoms emit a characteristic red color. this is an example of how an element can be identified by its unique atomic emission spectrum.
<h3>What is atomic emission spectrum?</h3>
The goal of an atom's electron arrangement is to keep the energy of the atom as low as feasible. An atom's ground state has the lowest energy level of all the atoms. When the energy is applied to those atoms, the electrons take it in and go to a higher energy level. The electrons in atoms have quantized energy levels, which again means that they must transition from one level to another in discrete increments rather than constantly. An atom is said to be in an excited state when its potential energy exceeds that of the ground state. An excited atom is not a stable atom.
To know more about atomic emission spectrum, visit:
brainly.com/question/13959991
#SPJ4
