Answer:
This question begins with something, you should know: molar mass from water is aproximately 18 g/m, so if 18 grams of water are contained in 1 mole, the 40 grams occuped 2.22 moles. As you see, opcion a is the best!
Explanation:
Answer:
D
Explanation:
The chemical properties of an atom is majorly influenced by the number of electrons which are present in the valence shell of its atom. This number helps us to know if the atom is a metal , non-metal , metalloid, or a noble gas. Properties like electro-negativity and electro-positivity depends on the valence electrons. metals with fewer electrons in their valence shell, like sodium have strong electro-positivity, while non-metals which higher number of electrons in their outermost shell like chlorine have a high electronegativity
Answer:
Total number of atoms in glucose are 24.
Explanation:
Photosynthesis:
It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.
Carbon dioxide + water + energy → glucose + oxygen
water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture by chloroplast.
Chemical equation:
6H₂O + 6CO₂ + energy → C₆H₁₂O₆ + 6O₂
Glucose molecule = C₆H₁₂O₆
Total number of atoms = 6+12+6 = 24
Types of atoms = 3 (C,H,O)
1) Find the molar mass of sucrose: 12*12 + 22*1 + 11*16 = 342 g/mol
2) Multiply the molar mass by the number of mols: 0.185 mol * 342 g/mol = 63.27 g
Answer:
2 molecules
Explanation:
From the stoichiometric equation, only 2-molecules of water is produced
