Explanation:
A narrow street or passageway between or behind city buildings. Alley is defined as a place in between something, relating to sports. An example of an alley the place on a tennis court between the sideline and service sideline. An example of an alley is the place between two outfielders on a baseball field.
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Answer:
The correct answer is propane.
Explanation:
The movement of chemicals follows numerous standards, which indicate that each trailer must contain an ID number identifying the chemical being moved. This is necessary because before possible accidents and leaks we must know the measures to be taken before a leak.
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Sulfur is part of the functioning group for the nucleotide
Answer:
4 × 10 g
Explanation:
Step 1: Write the balanced equation
2 H₂(g) + O₂(g) ⇒ 2 H₂O(I)
Step 2: Calculate the moles corresponding to 4 g of H₂
The molar mass of H₂ is 2.02 g/mol.
4 g × 1 mol/2.02 g = 2 mol
Step 3: Calculate the moles of H₂O produced from 2 moles of H₂
The molar ratio of H₂ to H₂O is 2:2. The moles of H₂O produced are 2/2 × 2 mol = 2 mol.
Step 4: Calculate the mass corresponding to 2 moles of H₂O
The molar mass of H₂O is 18.02 g/mol.
2 mol × 18.02 g/mol = 4 × 10 g
<h3><u>Answer;</u></h3>
Passive transport
<h3><u>Explanation;</u></h3>
- The movement of materials across the cell membrane without using cellular energy is called passive transport. On the other hand the energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration is called the active transport.
- It includes processes such as osmosis. diffusion and facilitated diffusion.
- Diffusion is the movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration.
- Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration.
- Facilitated diffusion is a type of diffusion of molecules assisted by protein channels that pierce a cell membrane.
