The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy. Today, this process uses instruments with a grating that spreads out the light from an object by wavelength. This spread-out light is called a spectrum.
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Answer:
The Earth will stay in motion because it is already moving.
Answer:
The volume will be 568.89 mL.
Explanation:
Boyle's law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure"
Boyle's law is expressed mathematically as:
Pressure * Volume = constant
or P * V = k
Gay-Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. That is, the pressure of the gas is directly proportional to its temperature. Gay-Lussac's law can be expressed mathematically as follows:
Where P = pressure, T = temperature, K = Constant
Finally, Charles's law indicates that as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:
Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:
Studying an initial state 1 and a final state 2, it is fulfilled:
In this case:
- P1= 960 mmHg
- V1= 550 mL
- T1= 200 C= 473 K (being 0 C=273 K)
- P2= 830 mmHg
- V2= ?
- T2= 150 C= 423 K
Replacing:
Solving:
V2= 568.9 mL
<u><em>The volume will be 568.89 mL.</em></u>
Answer:
0.3 mol A is combined with 0.8 mol B.
Explanation:
Limiting reagent in a chemical reaction is defined as the reagent that is totally consumed when the chemical reaction is complete.
In the reaction:
A + 2B → 2C+D
For a reaction of 1 mole of A, you need two moles of B. That means for any quantity of A you need twice this quantity in B.
Thus, <em>A is limiting reagent when moles of B are higher than twice moles of A.</em>
* 0.5 mol A is combined with 0.3 mol B. Twice moles of A are 1.0 moles that are higher than 0.3 moles. <em>A is not limitng reagent.</em>
* 0.5 mol A is combined with 0.6 mol B. Twice moles of A are 1.0 moles that are higher than 0.6 moles. <em>A is not limitng reagent.</em>
* 0.2 mol A is combined with 0.3 mol B. Twice moles of A are 0.4 moles that are higher than 0.3 moles. <em>A is not limitng reagent.</em>
* 0.3 mol A is combined with 0.8 mol B. Twice moles of A are 0.6 moles that are lower than 0.8 moles. <em>A IS limitng reagent.</em>
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It is determining which genes are linked to specific disease