Answer:
Explanation:
Answer:
Here, I hope this helps
Explanation:
Answer:
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V
Explanation:
A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Each atom has a certain electro-negativity. When bonded to another atom, the atom with the higher electro-negativity will tend to attract more electrons.
greater molecular size of water
2.
stronger hydrogen bonding in water
3.
higher molarity of water
4.
larger gram-formula mass of water
has higher boiling point than , as there has been stronger hydrogen bonding in . Thus, option 2 is correct.
The boiling point has been the temperature at which the liquid has been converted to the gaseous form. The boiling point has been based on the intemolecular attractions between the atoms.
Based on the intermolecular interactions, the compound with higher intermolecular force required more energy to break the bond and change the state, and thus have high boiling point.
The hydrogen sulfide and water has hydrogen bonding. The hydrogen bonding has been based on the electronegativity of the atom involved. The more electronegative atom, stronger will be hydrogen bonding and thereby higher boiling point.
In and , the oxygen has been more electronegative than sulfur and thus results in stronger hydrogen bonding.
Thus, has higher boiling point than , as there has been stronger hydrogen bonding in . Thus, option 2 is correct.
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Answer:
2, stronger hydrogen bonding
Explanation:
sample was gray, non-metallic, had
density of 3.8 g/mL, and a volume
of 48.3 mL
Of the observed properties listed
below, which is considered to be an
extensive property?
A Gray
B Metallic
C Density
D Volume
Answer:
D. Volume
Explanation:
Properties mentioned in the question;
colour = gray
Nonmetallic
Density = 3.8 g/mL
Volume = 48.3 mL
Of the mentioned, which is extensive ?
Extensive properties are those properties that are proportional to the amount of substance present.
The correct option is D. Volume. The other properties do not change with increasing or decreasing amount of the mineral
Volume is considered to be an extensive property.
The extensive property out of the observed properties listed is volume. An extensive property is one that depends on the amount of a substance. In this case, the volume of the mineral sample is directly proportional to the amount of the sample, so it is considered an extensive property.
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Express your answer using three significant figures.
Answer:
-115°C is the temperature on planet X.
Explanation:
Pressure inside the space station =
1 atm = 760 mmHg
Temperature inside the space station =
Volume of the air filled in the balloon =
1 mL = 0.001 L
Atmospheric pressure on planet X =
Temperature on the planet X =
Volume of the air filled in the balloon on planet X =
Using combined gas equation :
-115°C is the temperature on planet X.
Using the ideal gas law, the temperature on planet X is calculated to be approximately -148.5 °C, after converting all units to standard and then adjusting the final result from Kelvin to Celsius.
This is a classic problem in physics that uses the ideal gas law, which states that the pressure of a gas multiplied by its volume is directly proportional to the amount of gas and the temperature. Using the provided data about the initial conditions inside the space station and the final conditions on planet X, the final temperature can be found by using the equation P1V1/T1 = P2V2/T2, where P refers to pressure, V refers to volume, and T refers to temperature.
First, we need to convert all measurements to the standard units: Pressure in atm and volume in liters. So, initially the pressure inside the space station is 761 mmHg or approximately 1 atm (since 1 atm = 760 mmHg), the volume of the balloon is 855 mL or 0.855 L, and the temperature is 27 °C or 300.15 K (since 0 °C = 273.15 K). On planet X, the pressure is given as 0.14 atm and the volume as 3.21 L.
Substituting these values into our ideal gas law equation, we can find the final temperature T2 on planet X: T2 = P2V2T1 / P1V1 = (0.14 atm * 3.21 L * 300.15 K) / (1 atm * 0.855 L) = approximately 124.68 K.
To convert this value from Kelvin to degrees Celsius, we subtract 273.15, getting approximately -148.47 °C.
Therefore, the temperature on planet X is approximately -148.5 °C, given to three significant figures.
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Answer:
P₂ = 2.19 atm
Explanation:
Given data:
Initial volume = 1.5 L
Initial pressure =1 atm
Initial temperature = 273K
Final temperature = 26°C (26+273 = 299 K)
Final volume = 0.75 L
Final pressure = ?
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
P₂ = P₁V₁ T₂/ T₁ V₂
P₂ = 1 atm × 1.5 L × 299 K / 273 K × 0.75 L
P₂ = 448.5 atm .L. K / 204.75 K.L
P₂ = 2.19 atm
plz help
Explanation:
General Rules. In general, the electropositive character of the oxide's central atom will determne whether the oxide will be acidic or basic. The more electropositive the central atom the more basic the oxide. The more electronegative the central atom, the more acidic the oxide.