In a solid the particles are packed closely together, but they can move past each other freely.

a. True

b. False

5. Express the composition of each atom in shorthand form. a. zinc-64 b. chlorine-37 c. hydrogen-3 d. calcium-40

This occurs when 2 or more organisms or populations in a community rely or need similar limiting resources. Example: The foxes and hawks living in the same forest both feed on similar prey, such as rabbits, sometimes finding food is difficult.

What is stored energy?

How many protons are in hydrogen

If the theoretical yield is 26.0 grams and you actually recovered 22.0 grams what is the percent yield

Consider the following reaction where Kp = 4.55*10-5 at 723 K: N2 (g) + 3H2 (g) ⇋ 2NH3 (g) a) If the three gases are mixed in a rigid container at 723 K so that the partial pressure of each gas is initially one atm, what will happen?

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.