Câu 7. Đốt cháy lưu huỳnh trong oxi, sau phản ứng người ta thu được 4,48 lít khí lưu huỳnh đioxit (đktc). a. Tính khối lượng lưu huỳnh tham gia phản ứng cháy.
b. Tính thể tích (đktc) khí oxi cần thiết để phản ứng xảy ra hoàn toàn.

**40** points asapessay questions (10 points possible) clear image of next, create your own scenario. it can be one of your own real experiences or one you make up. use imagery in your writing to give your instructor a the setting and an action taking pace in your writing explain the structure and functions of the skin at work in your scenario. !

Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction

Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive