Answer:
3.31 atm.
Explanation:
- Gay-Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature.
∵ P α T.
<em>∴ P₁T₂ = P₂T₁.</em>
P₁ = 3.00 atm, T₁ = 20.0 °C + 273.15 = 293.15 K.
P₂ = ??? atm, T₂ = 50.0 °C + 273.15 = 323.15 K.
<em>∴ P₂ = (P₁T₂)/T₁</em> = (3.00 atm)( 323.15 K)/(293.15 K) = <em>3.307 atm ≅ 3.31 atm.</em>
Answer:
Iron, or Fe, has 26 electrons, with two electrons in the outer valence shell. Iron is a transition metal and is both lustrous and easy to work with. Iron is also prone to rust, especially in damp environments. Iron is a ferrous metal, meaning that it can be magnetized.
Explanation:
Answer:
Explanation:
1. Boiling point
The boiling point of a substance especially a fluid, is that temperature at which it turns from liquid to gas. The boiling point of water for example is 100°C, at this temperature, liquid water changes to vapor which a gaseous form of water.
2. decrease
When the size of a sample increases, the surface area of the sample decreases and so also the solubility. Smaller sized samples have a large surface area through which the solvent can readily surround and dissolve a material. Larger sized particles on the other hand have low surface area and dissolves slowly than expected.
3. Wood has low thermal conductivity, and metal has high thermal conductivity.
The thermal conductivity of wood is very low while that of metals is very high. This why metals will conduct heat away from a heat source and a wood will remain unchanged in terms of temperature.
4. Volume
Volume is an extensive property of a matter that depends on the amount of substance present. Volume is the amount of space a substance occupies. The more the substance, the more the space it occupies. This why 20g of water will have a higher volume compared to 15g of water.
5. Solvent
A solvent is a liquid that dissolves other substances. When solvents dissolves other substances, they form a solution.
D. Anthracite is the correct answer I’m 95% sure
Answer:
Precipitation reactions are ones in which at least one of the reactants is in the aqueous phase (i.e., dissolved in water), and a solid forms on the product side which was not present on the reactant side. If all the reactants are solid, then a solid product forming should not be called a precipitate. To be called a precipitate, an insoluble product must form from within solution, either from a solid and solute interacting, or from an interaction strictly between solutes.
Explanation: