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.
- Marked out of 1.0 P Flag question Which type of solution has a liquid solute dissolved in a solid solvent? Select one: a. Gel b. Alloy c. Amalgam d. Solid foam Question 93 Leav e a me ssage
- Which vollage source converts chemical energy to electrical energy? a Battery b Solar cell c Electrical generalor d Electronic power supply
- 30 Common misconceptions about air pollution include: square Air pollution is only a problem in urban areas square Air pollution is only caused by visible sources like factories and vehicles square Air pollution is a localized problem that only affects those living near pollution sourc square All of the above 31 What is crucial when teaching crystal concepts at the symbolic level? square Discussing intermolecular forces square Introducing unit cells square Explaining crystal faces arrangement square Using chemical formulas 32 What is Arrhenius's definition of acids and bases? square Acids release H+ ions [ square Acids release OH- ions square Bases release H+ ions square Bases release OH- ions 33 Which misconception(s) is/are commonly observed among students about square chemical bonds are physical connections between atoms square square U [ square All of the above 34 Which type of reaction can establish an equilibrium state? square square Combustion reactions Reversible reactions [ square square Endothermic reactions square square square square Release H+ ions 36 What is the main focus of inquiry-based learning? square square square square 37 What components make up an electrochemical cell? square Electrodes, electrolyte, and sal bridge square Wires and light bulbs square Water and metal plates square Glass containers and rubber stoppers square square Backwards square In decreasing order of energy square U In increasing order of energy 39 Which one(s) is/are a misconception(s) about irreversible reactions? square Irreversible reactions are always fast square Irreversible reactions are always slow square Irreversible reactions are always endothermic (absorb heat) square All of the above
- 9. Which is the empirical thrinuita of carbohydrales? A. (CH_(2)O)n B. (CH_(2)O)2n C. (CHO)_(n) D. CnH_(2)O_(n) 10. Identify an aldotriose in the list A. Glyceraldchyde B.Dihydroxyacetone c Ribose D. Erythrose 11. Which of the following interactions stabilize the quatemary protein structure A. Elestrostatic forves B. Hydrogen bonds C. Hydrophobic bonds D. All of the above 12. Which of the following amino acid can destabilize a helix A . Cysteine B. Asparagine C.Threonine D. All of the above 13. How many levels of structure can a protein exist? A. 2 B. 3 C. 4 D. None of the above 14. Which is the gencral formula of fatty acids A. R-COO- B. R-COOH C. R-HCOO- D.COOH 15. The carbon-2 in fatty acids is also referred to ns __ A. Alpha (a) Carbon B. Beta (beta ) Catron C. Delta (Delta ) Caron D. Gamme (gamma ) Carbon 16. In saturated fally acid the position of a double bond is showed by? A. A(delta) symbol fallowed by a number B. A (delia) symbol followed by superscript number C. 4 (delta) symbol followed by subscript number D. None of the above A. Length of the chain 17. Which fatty acid below has lower melting point than the rest A. Stearic acid (18:0) B. Oleic acid (18:1) C. Linoleic acid (18:2) D. Eicosancic scid (18:3)
- Maria is investigating various compounds. She has the chemical formulas for each compound What does the chemical formula help her know about each substance? A. The chemical formula tells her that there has been production of a gas. B. The chemical formula tells her that the compound underwent a color change. C. The chemical formula tells her the type and number of atoms in the compound. D. The chemical formula tells her the weight of each compound.