What was the result of shining the flashlight through the diffraction grating compared to the laser? Explain this difference.

How many moles of ca atoms are in 534.0 g ca?

Which of the following best describes why a cruise ship floats? A. It displaces an equal or greater amount of water than its own weight. B. It displaces more than half of its weight in water. C. Its volume and mass are equal. D.

Consider the balanced chemical equation, MgCl2 (aq) + 2AgF (aq) → 2AgCl (s) + MgF2 (aq) If both reactants are completely consumed and we produce 20 formula units of AgCl, how many ions of Mg and F did we start with?

In order for the Colorado River to carve the deep Grand Canyon, what must happen first? A. Uplift of the Colorado Plateau B. Motion along the San Andreas fault C. Uplift of the Appalachian Mountains D. Rifting of supercontinent Rodinia

Explain why the level of greenhouse gasses in the atmosphere is rising.

How would a soil that develop in a warm, wet place be different than one that develop in hot, dry place

How do halogens differ from noble gases?

The equilibrium constant at 35 0 K for the reaction Br2 (g) I2 (g) 2IBr (g) has a value of 322. Bromine at an initial pressure of 0. 0500 atm is mixed with iodine at an initial partial pressure of 0.

The number of electrons can accommodate in K shell is 8. True or False

Thermochemical Equations Practice 1) Using the balanced thermochemical equation below: 2H2 + O2 + 2H20 + 241.8 kJ How much heat is released when 12.5 grams of hydrogen (Hz) are completely reacted?