Is concrete a homogenous or heterogenous mixture?

How many grams of Cl are present in the mixture, 6.87*1023 molecules of PCl3 and 0.278 mol of PCl5.

What happens when you mix an aqueous solution of sodium nitrate with an aqueous solution of barium chloride?

Hypothesis 2 (Particle size) : If you ___ the particle size of a reactant, then the reaction rate will increase because ___ of the reactant's surface area is exposed allowing more particles to make contact with each other

What is the same about a proton and electron? A. They are both found in the nucleus B. They both have a mass of 1 amu C. They both orbit the nucleus D. They both are electrically charged

Will Al react with HCl to produce hydrogen gas?

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.