What is the hardest mineral listed here?

A. quartz B. calcite C. gypsum D. corundum

A 48.3 mL sample of gas in a cylinder is warmed from 22 C, 87 C to 0.0 C what is the final temperature

What is the easiest way to memorize all the elements and their properties?

Which chemical equation below is balanced correctly? 3LiOH + Fe (NO3) 3 yields LiNO3 + Fe (OH) 3 2NaCl + CaO yields Na2O + CaCl2 Zn + HCl yields ZnCl2 + H2 Mg + HCl yields MgCl2 + H2

A 2 cm cube made of acrylic has a mass of 19.7 g. What is the density of the acrylic?

Which is an example of an element? A) Salt (NaCl) B) Water (H2O) C) Silver (Ag) D) Electron (electron (e-)

Why do airbags fill evenly with gases?

In which of the following reactions will Kc = Kp? In which of the following reactions will Kc = Kp? (A) SO3 (g) + NO (g) ↔ SO2 (g) + NO2 (g) (B) 2 N2 (g) + O2 (g) ↔ 2 N2O (g) (C) 4 NH3 (g) + 3 O2 (g) ↔ 2 N2 (g) + 6 H2O (g) (D) 2 SO2 (g) + O2 (g) ↔ 2

Which tool is most suitable for a chemist to measure the mass of a liquid

What is the equation adheres to the law of conservation of matter

What ironic contrast does Vonnegut include in this scene? George tells his wife to forget sad things, but readers would expect George and Hazel to want to remember their son.