The answer is C: hydrogen bonds. Explanation: The surface tension and the capacity for heat storage in water are due to its hydrogen bonds. Water molecules have a strong attraction to one another through hydrogen bonding. These bonds are continuously forming and breaking within water molecules. The result of this hydrogen bonding is surface tension, which allows water to have a greater capacity for heat retention. Consequently, during the night, the temperature on Earth drops much faster than it does for water, as water gradually releases heat, helping maintain a moderate atmospheric temperature at night.
When examining its electronic configuration, the last digit should be five, suggesting configurations like (2,5), (2,8,5), or (2,8,8,5), among others.
Thus, elements that end with the number 5 in their outer shell include N, P, As, Sb, Bi, Uup. Based on the choices presented, the probable answer is option 4) Phosphorus.
Density is calculated as Mass divided by Volume.
Volume can also be expressed as Mass divided by Density.
Volume becomes 2 divided by 128.
This results in Volume equal to 1/64.
Therefore, each side measures 4 cm.
Boyle's law pertaining to ideal gases states that the volume of a gas relates inversely to its pressure when temperature is constant. According to this principle, the relationship between pressure and volume can be expressed as:
This implies:
Utilizing this equation enables us to determine the volume of gas given a specific pressure:
P₁=Initial pressure
V₁=Initial volume
P₂=Final pressure
V₂= Final volume
In this case, the initial pressure P₁ is noted as 85.0 kPa.
The initial volume V₁ is provided as 525 mL.
The final pressure P₂ is recorded as 65.0 kPa.
Thus,
V_{2}=85×525÷65
=686 mL
Consequently, the gas volume will amount to 686 mL.
Answer:
The answer is 930 grams of platelets.
Explanation:
The amount of blood given is 1.89 pints. To convert this to gallons:
= 1.89/8 = 0.236 gallons
Since 1 gallon is equal to 3.785 liters,
0.236 gallons equals = 0.236 * 3.785 L = 0.89 L
Given that 1 liter of blood contains 1.04 kilograms of platelets, thus, 0.89 L of blood will have = 1.04 * 0.89 = 0.93 kg of platelets.
As 1 kg equals 1000 grams, the amount of platelets in grams translates to:
= 1000 * 0.93 = 930 grams of platelets.
