Answer:
With an understanding of the ideal gas laws, it is now possible to apply these principles to chemical stoichiometry problems. For example, zinc metal and hydrochloric acid (hydrogen chloride dissolved in water) react to form zinc (II) chloride and hydrogen gas according to the equation shown below:
2 HCl (aq) + Zn (s) → ZnCl2 (aq) + H2 (g)
Explanation:


Answer:
A. a system that can be affected by the outside environment, by an exchange of matter or energy
Answer: 3 significant figures
Explanation: because in scientific notation only the before and after decimal number are considered but in standard form all numbers including exponents are all significant figures
Answer:
naoh is called sodium hydroxide,
Explanation:
hope this helps
... indicates that it also has a high concentration of Hydroxide (OH) and that it is more basic.