Answer:
Explanation: Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)
Answer:
Metal is named first
Explanation:
Binary compounds:
The compounds which are made up of the atoms of only two elements are called binary compounds.
For example:
The following compounds are binary:
HCl
NaCl
HCl is binary because it is composed of only hydrogen and chlorine.
Sodium chloride is also binary compound composed of only two element hydrogen and chlorine.
When naming these compounds the name of metal or cation is written first and anion is written after the cation. The anions are non meals.
The anion name is end with suffix " ide".
such as sodium chloride.
There are 0.400 mol Br₂ in the sample..
Mass of Br₂ = 20.5 mL Br₂ × 3.12 g Br₂/1 mL Br₂ = 63.96 g Br₂.
Moles of Br₂ = 63.96 g Br₂ × (1 mol Br₂/159.81 mol Br₂) = 0.400 mol Br₂
Explanation:
There are 1000 m in a km, and 100 cm in a m.
2.85×10¹² km × (1000 m / km) × (100 cm / m) = 2.852.85×10¹⁷ cm
coal
Which of these can be mined from earth and used as an energy source?
A.Get rid of the waste and extra fluid
B.Ureters
C.Coal
D.Bladder
ans is coal