6.5 moles of AgCl can be formed from 6.5 moles of Ag.
STOICHIOMETRY:
According to this question, silver reacts with hydrochloric acid to form silver chloride and hydrogen gas as follows:
2Ag + 2HCl → 2AgCl + H2
Based on this balanced equation, 2 moles of silver (Ag) produces 2 moles of silver chloride (AgCl).
This means that 6.5 moles of Ag will produce (6.5 × 2)/2 = 6.5 moles of AgCl.
Learn more about stoichiometry at: brainly.com/question/9743981?referrer=searchResults
"They are probably archaebacteria because the colony lives in an extreme environment" best describes the bacteria discovered by the scientist.
<u>Option: D</u>
<u>Explanation:</u>
Archaebacteria count as the organisms who prepare their food i.e autotroph. In their atmosphere, they produce their food from the raw materials including carbon, oxygen, hydrogen, metals and simple organic molecules like sugar. Many archaebacteria are present in extremely harsh conditions. These are also extremophiles.
The two finest-known classes of archaea are the crenarchaeotes and euryarchaeotes. This category includes most known thermophiles i.e the heat-lovers. They live most often in hot or acidic conditions. These can be identified, for an instance, in strongly acidic, hot sulfur springs at temperatures above 75 ° C.
Answer:
The correct answers are:
a) 180 g
b) 93.7 cm³
Explanation:
The density of a substance is the mass of the substance per unit of volume. So, it is calculated as follows:
density= mass/volume
From the data provided in the problem:
density = 0.8 g/cm³
a) Given: volume= 225 cm³
mass= density x volume = 0.8 g/cm³ x 225 cm³ = 180 g
b) Given: mass= 75.0 g
volume = mass/density = 75.0 g/(0.8 g/cm³)= 93.75 cm³≅ 93.7 cm³