<span>A Chemical equation is useful because it shows all the
elements or compounds involved on a chemical reaction. It also shows which
elements or compounds are the products and which are the reactants. The behavior of each element or compound can
also be seen in the equation, on what each element or compound did as to where
they went or what they formed when they reacted. Chemical equations are very useful because all
information are found in one equation, thus, no need for a lot of reading.</span>
Answer:
Asteroids are made of rock, metals, and other elements. Some even contain water. Asteroids that are mostly stone sometimes are more likely to lose piles of rubble. Asteroids that are mostly iron are more rock-solid.
Explanation:
Answer:
Explanation:
You could ride a bike not use bottled water you could try and use solar energy.
Answer:
rust
Explanation:
Chemical rxn of iron and oxygen = rust
In one H₂O molecule, there are two hydrogen atoms along with one oxygen atom. So for every 1 oxygen atom (of which there are 2 of in an oxygen gas molecule) there needs to be 2 hydrogen atoms per oxygen( which in the equation of 2H2 +O2–> 2H2, that 2 H2 is broken down into 4 hydrogen atoms which means 2 hydrogen atoms have to bond to 1 oxygen atom and with 4 hydrogen atoms, there will be 2 atoms of oxygen which creates 2 molecules of water.
So to solve the question,
10.5g/2=5.25g of oxygen required to fully react with hydrogen to make water
