Hydrates take the form: compound·nh2o. an unknown hydrate has a molar mass of 190. g/mol. if the anhydrate has a molar mass of 100. g/mol, what is the integer n in the hydrate.

Why is an alkali metal element like sodium (Na) so reactive?

After the industrial revolution, the dark colored bark caused which kind of peppered moths to flourish A. Both peppered moths B. neither peppered moths C. The dark colored peppered moths D. the light colored peppered moth

Which of the following is the correct Lewis structure for carbon?

Why is a chemical equilibrium described as dynamic?

Which mineral is softer than fluorite

Which terms are used to identify pure substances? (1) an element and a mixture (2) an element and a compound (3) a solution and a mixture (4) a solution and a compound

Which of the following polyatomic ions will form an ionic compound with two sodium ions? CO32- HCO31- NO21- NO31-

What is hybridisation

2. Seorang ibu perlu menyediakan satu hidangan kari daging dengan cepat untuk anaknya yang lapar. Langkah manakah yang berikut dapat membantu dia mencapai tujuan ini? (CL01, C2) A. Menggunakan periuk yang lebih besar B. Menambah banyak serbuk kari C.

Which of the following statements is not true? Question 4 options: When atoms have similar electronegativities, electrons are shared equally When electrons are shared equally, the molecule is called a nonpolar molecule.