Why is elemental zinc considered a pure substance?

What is the concentration of a solution in which 75 g of C12H22O11are dissolved in 600. mL of water?

Where is the earths magnetic field and what causes it

what is The process that makes specialized sex cells is

Sodium chloride, table salt, forms ions when dissolved. Sodium loses one electron. Chloride gains one electron. What are the charges on the two ions?

What organ is affected by Hep B?

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.