Answer:
The type of evidence that is more difficult to collect is evidence known as trace, for example, fibers, hair, or signs of dirt.
Explanation:
For the collection of this type of evidence, specialized equipment such as special vacuum cleaners, tweezers, etc. are used, all with the purpose of carrying out the collection of trace evidence. This type of evidence is characterized by being very difficult to find.
I think it is trace evidence since it is really small and hard to find.
Answer:
The number of atom is 3.67*10^24 atoms
Explanation:
Molar mass of methane CH4 is 16.0g/mol
Using this to divide the mass
24.4g/16.0 = 1.525mol
1 mol CH4 contains 1 mol of Carbon C and 4 mol of hydrogen H, so 1.525mol contains 4(1.525)=6.1 molH
Using avogadro number : (6.1mol)(6.02*10^23)
= 3.67*10^24 atoms
There are 3.66 × 10^24 hydrogen atoms in 24.4 g of methane (CH4). This is calculated by first finding the number of moles of CH4 and then using Avogadro's number to determine the total number of molecules, which is finally multiplied by 4 (the number of hydrogen atoms per CH4 molecule).
The question asks how many atoms of hydrogen are in 24.4 g of methane (CH4). Methane has a molecular formula of CH4, indicating that each molecule contains 4 hydrogen atoms. The molar mass of methane is 16.04 g/mol (12.01 g for carbon + 4 × 1.008 g for hydrogen).
First, calculate the number of moles of methane:
24.4 g CH4 × (1 mol CH4 / 16.04 g CH4) = 1.52 mol CH4
Then, multiply by Avogadro's number to find the total number of methane molecules:
1.52 mol CH4 × (6.022 × 1023 molecules/mol) = 9.15 × 1023 molecules of CH4
Since each molecule of methane has 4 hydrogen atoms, we get:
9.15 × 1023 molecules CH4 × (4 H atoms/molecule) = 3.66 × 1024 hydrogen atoms.
The order of steps through which a particle of gaseous water would travel as it made one complete trip through the water cycle are Evaporation, Condensation, Precipitation, Runoff, Infiltration, and Transpiration.
Water cycle refers to the continuous process of water movement on Earth involving evaporation, condensation, precipitation, and more. The water cycle, also known as the hydrologic cycle, consists of several interconnected stages.
It begins with evaporation, where water from bodies of water and the Earth's surface turns into water vapor due to heat from the sun. This vapor then undergoes condensation, forming clouds.
Precipitation occurs when condensed water droplets combine and fall as rain, snow, sleet, or hail. Surface runoff carries excess water to larger bodies, while infiltration sees water seep into the ground. Transpiration involves plants releasing water vapor into the atmosphere. These processes together complete the cycle.
Read more about water cycle
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Answer:
The freezing point is the temperature at which a liquid turns to a solid. ... This temperature is referred to as the melting point when temperatures rise above 32°F (0°C), causing ice to melt and change state from a solid to a liquid (water), as happened with the cup of crushed ice at room temperature.
Explanation:
The freezing point is the temperature at which a liquid turns to a solid. ... This temperature is referred to as the melting point when temperatures rise above 32°F (0°C), causing ice to melt and change state from a solid to a liquid (water), as happened with the cup of crushed ice at room temperature.