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.
- What are the 2 ions that come together to form quartz? silicon and chloride sodium and oxygen silicon and oxygen sodium and chloride
- Which of the variables is independent and which is dependent? w is the independent variable, and d is the dependent variable. d is the independent variable, and w is the dependent variable. Complete the sentence. The dependent variable is always
- (a) The students investigated reactions to produce magnesium. (i) Magnesium chloride contains magnesium ions and chloride ions. Why does solid magnesium chloride not conduct electricity? (ii) One of the products of the electrolysis of molten magnesium chloride is magnesium. Name the other product. (iii) Why do magnesium ions (mathrm(Mg)_(3)^-) move to the negative electrode? (iv) At the negative electrode, the magnesium ions ( mathrm(Mg)_(3)^- ) gain electrons to become magnesium atoms. (b) The students did the experiment four times and weighed the magnesium produced. The table below shows their results. Experiment & Mass of magnesium produced in grams 1 & 1.13 2 & 0.63 3 & 1.11 4 & 1.09 (i) There is an anomalous result. Suggest one possible reason for the anomalous result. (1) (ii) Calculate the mean mass of magnesium produced, taking account of the anomalous result. Mean mass = qquad qquad (2) (Total 7 marks)
- Describe how a peptide bond is formed between two amino acids to form a dipeptide. __
- What best describes these two molecules? They are not isomers. They are structural isomers. They are geometric isomers. They are both structural and geometric isomers.