630g
Explanation:
firstly the equation has to be balanced. 2H2+o2>2H2o.
finding the mole of hydrogen?
mole = 70/2 which is equal to 35 mole of hydrogen.
35 mole of hydrogen is equal to the mole of water.
finding the mass of water=?
35=mass/18
mass= 35*18=630g of water
Answer:
Mechanical - Freezing & Thawing, Acid Rain, Flowing Water, oxidation
Chemical - Rusting, abrasion
Explanation:
hope this helps!
Answer: c.
Electrons are transferred → Ions form → Ions are attracted to each other
have a great day
Explanation:
A). 4
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Physical changes occur when the properties of a substance are retained and/or the materials can be recovered after the change. Chemical changes involve the formation of a new substance. Formation of a gas, solid, light, or heat are possible evidence of chemical change.
