2) Balance the following chemical equation:Al(NO3)3 + Na2S Al,S3 + NANO,3) If 10.0 mL of a 10.0 M stock solution of NaOH is diluted to 250 mL,what is the concentration of the resulting stock solution?4) Decomposition of KCI03 is sometimes used to prepare small amounts of02 in the laboratory. How many grams of 02 can be prepared from 4..50g ofKC103?2 KC1O3 (s) – 2 KCl (s) + 3 02 (g)English (United States)ngExam 1 Review - 20.84

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2) Balance the following chemical equation: Al(NO:); + Na,S Al,S3 + NaNO ,

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When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

2) Balance the following chemical equation:
Al(NO3)3 + Na2S Al,S3 + NANO,
3) If 10.0 mL of a 10.0 M stock solution of NaOH is diluted to 250 mL,
what is the concentration of the resulting stock solution?
4) Decomposition of KCI03 is sometimes used to prepare small amounts of
02 in the laboratory. How many grams of 02 can be prepared from 4..50g of
KC103?
2 KC1O3 (s) – 2 KCl (s) + 3 02 (g)
English (United States)
ng
Exam 1 Review - 20.
84

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