What material is least likely to be recognized as a mixture by looking under a microscope

According to the activity series, which of the following single replacement reactions will take place and result in a reaction? nickel and aluminum chloride barium and copper bromide potassium nitrate and aluminum sodium phosphate and zinc

Match each chemical bond to its correct description. A.) Ionic bond B.) Covalent bond C.) Metallic bond 1.) sharing of electrons 2.) Freely moving electrons 3.) Transfer of electrons

Why is it important to seal the mouth of the test tube

Consider these two electron configurations for neutral atoms l and m. l - 1s22s22p63s2 m - 1s22s22p63s13p1 what is the atomic number of l

Section: 6.1 20) Calculate the number of moles of aspirin, C9H8O4, in a 4.0 gram tablet. A) 2.2 x 10-4 ċ 9 H:8 0.4 B) 2.2 C 12.61 H 1.01 16.00 C) 4.6 x 10-3 9x612.01) + 8x (1.01) + 4 (16.00) - 180.17 D) 0.022 4.0 X (180.17) = 720

A substance that permits the flow of electrons is a (n a. conductor b. insulator

The volume, in liters, of 538 g of CO2

9.86 x 10²⁸ O-atoms require what volume (L) N₂O₂ at STP?

What is a group of elements that form salts called

Which number represents an acidic pH, 4 or 9?