The arrow doesn’t “point” to anything really, it means that the reactants form (or change) into the products.
Answer:
Acids react with most metals.
When an acid reacts with a metal, the products are a salt and hydrogen.
This is the general word equation for the reaction: metal + acid → salt + hydrogen
Explanation:
Answer:
A safety guide lines are rules and regulations that are made to make sure place is safe and conducive for everyone.
Answer:

Explanation:
Hello there!
In this case, since we have a problem about volume-pressure relationship, the idea here is to use the Boyle's law to calculate the final volume as shown below:

Then, we plug in the initial and final pressures and the initial volume to obtain:

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