It is in the 15th family on the Periodic Table, or the Pnictogen family
D. In a Chemical reaction, elements are not changed, just rearranged. Small amounts of energy take place.
Answer:
b. 1150 mmHg
General Formulas and Concepts:
<u>Chemistry - Gas Laws</u>
Gay Lussac Law -
- P₁ is Pressure 1
- T₁ is Temperature 1 in Kelvin
- P₂ is Pressure 2
- T₂ is Temperature 2 in Kelvin
Explanation:
<u>Step 1: Define</u>
P₁ = 1.40 atm
T₁ = 12°C
P₂ = unknown
T₂ = 35°C
<u>Step 2: Identify Conversions</u>
1 atm = 760 mmHg
K = °C + 273.15
<u>Step 3: Convert</u>
P₁ = 1.40 atm = 1064 mmHg
T₁ = 12°C = 285.15 K
T₂ = 35°C = 308.15 K
<u>Step 4: Find P₂</u>
- Substitute:
- Cross-multiply:
- Multiply:
- Isolate P₂:
- Divide:
- Rewrite:
<u>Step 5: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules and round.</em>
1149.82 mmHg ≈ 1150 mmHg
A) fixed volume and fixed shape- Solid. b)fixed volume variable shape- Volume. c) variable volume variable shape- Gas. D) state in which molecules move the most- Solids E) molecules move the least- Gas. F) A phase change is a physical change in matter. G) Melting- becoming liquified by heat. H) Freezing- a liquid turned into a solid by extreme cold. I) Vaporizing- when a liquid changes form into a gas. J) Condensing- to change from a gas or vapor to a liquid. K) Sublimation- goes directly from a solid state to a gas state. (Dry ice). J) Deposition- a geological process in which sediments, solids and rock are added to landforms or landmass by transport of wind, water, gravity or weather. K) sublimation is an increase in energy. L) freezing is a decrease in energy