Chemistry Homework Assistance
QuestionAI's chemistry problem solver is a middle school chemistry tutoring tool that summarises key chemical reactions and equations in real-time, featuring a robust learning system to empower even those with a weak foundation in chemistry.
You needn't fret over the elemental properties of the periodic table anymore. Here, you can effortlessly access chemical reactions and reaction principles corresponding to each element. Deductive reasoning from microscopic phenomena to discern the original structure of molecules and atoms is a research technique we staunchly champion.
- A square is a substance created when the atoms of two or more square join together. An example of a compound is square one square atom bonded to two square atoms]. hydrogen compound poun chemical water elements oxygen DONE
- OXIDATION NUMBER What is the oxidation number of sulfur in each of the following cases? (b) H_(2)SO_(4) S_(8) (f) Na_(2)S_(4)O_(6) 2. In H_(3)AsO_(4) what is the oxidation number of (a) hydrogen (b) oxygen (c) arsenic? State the oxidation number of the underlined element in each of the following: (b) C_(3)O_(2) (c) MnO_(4)^- (d) MnO_(4)^2- (e) underline (VO_(2))^+ (f) underline (UO_(2))^2+ (g) ClO_(3)^ast 4. What is the oxidation state of hydrogen in each of the following? (b) H+ __ (c) NaH (d) H_(2) (e) LiAlH_(4) __ 5. Which of the following is the anhydride of HNO_(3) (a) N_(2)O (b) NO (c) NO_(2) (d) N_(2)O_(4) __ (e) N_(2)O_(5) 6. Calculate the oxidation number of the underlined element in each of the following: (a) SO_(3)^2- (b) H_(2)CO (c) Na_(2)Cr_(2)O_(7) (d) O_(3)
- Look at th e table . What goe s in label 3? are not are __ __ (4) chemically joined __
- Hydrogen gas is produced during this reaction. Describe the test for hydrogen gas. Give the result of the test. [2 marl Test
- (c) Gold reacts with the elements in Group 7 of the periodic table. 0.175 g of gold reacts with chlorine. The equation for the reaction is: 2Au+3Cl_(2)arrow 2AuCl_(3) Calculate the mass of chlorine needed to react with 0.175 g of gold. Give your answer in mg Relative atomic masses (A); Cl=35.5Au=197