Which of the following elements have properties similar to those of strontium (Sr)

A: Y, Zr, Nb

B: Sb, Te, I

C: F, Br, I

D: Be, Mg, Ca

Which causes seismic waves A: convection in the mantle B: movements of the plates C: gravity in the mantle D: movements of the core

How long does it take for the average cumulus cloud to disperse

At a temperature of 273 K, a 400.-milliliter gas sample has a pressure of 760. millimeters of mercury. If the pressure is changed to 380. millimeters of mercury, at which temperature will this gas sample have a volume of 551 milliliters

Ethyl chloride (c2h5cl) boils at 12∘c. when liquid c2h5cl under pressure is sprayed on a room-temperature (25∘c) surface in air, the surface is cooled considerably.

Entropy of a system decreases with decrease in Temperature T/F

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise the temperature from 25°C to 50°C.

State the relationship between the number of electrons in a carbon-nitrogen bond and carbon-nitrogen bond energy

What are the characteristics of bones?