A.Genes. . ..................
Answer:
5.76g
Explanation:
2H2 + O2 => 2H2O
Molar mass of H2O = 18g/Mol
No of mole of H2O = 6.42/18 = 0.36 moles of water.
1 mole of O2 gives 2 moles of water.
Xmole of O2 gives 0.36 moles of water.
X = 0.36/2 = 0.18 mole
Molar mass of O2 = 32g/mol
Mass = 32 × 0.18 = 5.76g.
Answer:
Mass of reactant = 69.453 g
Explanation:
Given data:
Mass of empty flask = 54.275 g
Mass of precipitates = 1.240 g
Mass of flask and content after isolating the precipitates = 122.488 g
Mass of reactants = ?
Solution:
Mass of reactants must be equal to the mass of precipitates and content in flask after isolating the precipitates.
Mass of reactant = mass of precipitates+content in flask after isolating the precipitates
Mass of content in flask = Mass of flask and content after isolating the precipitates - mass of flask
Mass of content in flask = 122.488 g - 54.275 g
Mass of content in flask = 68.213 g
Mass of reactant :
Mass of reactant = mass of precipitates+content in flask after isolating the precipitates
Mass of reactant = 1.240 g + 68.213 g
Mass of reactant = 69.453 g
Pentasilicon hexabromide
Si₅Br₆
First of all the fundamental level of giving examples is understanding what carbohydrates are mainly sugars and starches that have 3 principal types of nutrients.
Some examples I found:
glucose (monosaccharide)
fructose (monosaccharide)
galactose (monosaccharide)
sucrose (disaccharide)
lactose (disaccharide)
cellulose (polysaccharide)
chitin (polysaccharide)
starch