Which molecule contains a nonpolar covalent bond? A. HCI B. F2 C. CO2 D. NH3

How does the temperature of the air change with altitude?

TiliK225 [7]

As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it's snowing), the temperature decreases more slowly with height.

8 0

3 years ago

Indica en qué modelos se fueron descubriendo las partículas atómicas y las unidades en la que se expresan su masa y su carga elé

11Alexandr11 [23.1K]

Answer:

En total son 8 modelos, en la explicación los nombraremos por orden de antigüedad.

Explanation:

Modelo atómico de Demócrito (450 a.C.)

Modelo atómico de Dalton (1803 d.C.)

Modelo atómico de Lewis (1902 d.C.)

Modelo atómico de Thomson (1904 d.C.)

Modelo atómico de Rutherford (1911 d.C.)

Modelo atómico de Bohr (1913 d.C.)

Modelo atómico de Sommerfeld (1916 d.C.)

Modelo atómico de Schrödinger (1926 d.C.)

3 0

3 years ago

Consider 5.00 L of a gas at 365 mmHg and 20. ∘C . If the container is compressed to 2.30 L and the temperature is increased to 4

lakkis [162]

Answer:

P₂ = 1.12 atm

Explanation:

To find the new pressure, you need to use the Combined Gas Law:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

In this equation, "P₁", "V₁", and "T₁" represent the initial pressure, volume, and temperature. "P₂", "V₂", and "T₂" represent the new pressure, volume, and temperature. Before plugging the values into the equation, you need to

(1) convert the pressure from mmHg to atm (760 mmHg = 1 atm)

(2) convert the temperatures from Celsius to Kelvin (°C + 273)

The final answer should have 3 sig figs like the given values.

P₁ = 365 mmHg / 760 = 0.480 atm P₂ = ? atm

V₁ = 5.00 L V₂ = 2.30 L

T₁ = 20°C + 273 = 293 K T₂ = 40°C + 273 = 313 K

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$ <----- Combined Gas Law

$\frac{(0.480 atm)(5.00 L)}{293 K}=\frac{P_2(2.30 L)}{313 K}$ <----- Insert values

$0.00819=\frac{P_2(2.30 L)}{313 K}$ <----- Simplify left side

$2.56 = P_2(2.30L)$ <----- Multiply both sides by 313

$1.12 = P_2$ <----- Divide both sides by 2.30

6 0

11 months ago

How does the hydrosphere affects humans

denis-greek [22]

The hydrosphere brings water to the human environment.

5 0

3 years ago

Read 2 more answers

A gas has a pressure of 0.12 atm at 294 K. What is the new pressure at 273 K?

seropon [69]

Answer:

P₂ = 0.11 atm

Explanation:

Given data:

Initial pressure = 0.12 atm

Initial temperature = 294 K

Final pressure = ?

Final temperature = 273 K

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

0.12 atm / 294 K = P₂/273 K

P₂ = 0.12 atm × 273 K / 294 K

P₂ = 32.76 atm. K /294 K

P₂ = 0.11 atm

5 0

2 years ago

Which molecule contains a nonpolar covalent bond?A. HCI B. F2 C. CO2 D. NH3​

Which molecule contains a nonpolar covalent bond?A. HCI B. F2 C. CO2 D. NH3