Answer:
The answer is explained below
Explanation:
a) The Breaking down/ electrolysis of water produces oxygen gas and hydrogen gas. The word equation is given by:
Water ⇒ Hydrogen + Oxygen
b) The synthesis of water is the combination of two molecules of hydrogen and one molecule of oxygen to produce two molecule of water. The word equation is given by:
Hydrogen + Oxygen ⇒ Dihydrogen monoxide
c) Sugar decomposes to produce carbon and water. The word equation is given by:
Sugar ⇒ Carbon + Water
d) Photosynthesis is the process in which energy from sunlight is used by plant for growth
The reaction of photosynthesis in word form is given by:
Carbon dioxide + Water ⇒ Glucose + Oxygen
Endothermic is a chemical reaction which absorbs energy in the form of heat
Answer:
they can change how we think,move and even how we feel about things!
Its A. the energy is stored within the nuclear of the atom
The grams of FeO that would be needed to make 234.2 grams of Fe is
1204.42 grams
<u><em> calculation</em></u>
4 FeO → Fe₃O₄ +Fe
Step 1: find the moles of fe
moles = mass /molar mass
from periodic table the molar mass of Fe = 56 g/mol
moles = 234.2 g/56 g/mol = 4.182 moles
Step 2: use the mole ratio to determine the moles of FeO
FeO: Fe is 4:1 therefore the moles of FeO =4.182 moles x4 =16.728 moles
Step 3: find the mass of FeO
mass = moles x molar mass
The molar mass of FeO = 56 +16 = 72 g /mol
mass = 16.728 moles x 72 g/mol= 1204.42 grams