Which statement best explains why this extrusive volcanic rock does not have visible crystals

How much heat is needed to boil 45 grams of water at 100°C?

How to fill in the table

How many helium atoms are there in a helium blimp containing 537 kg of helium? express the number of helium atoms numerically?

What is the overall reaction order for the following rate law: rate = K [A]2 [B] zero first second third

Which of the following is true about microorganisms? A. Microorganisms can have both beneficial and detrimental effects on other organisms. B. Microorganisms never have any effect on other organisms. C.

The atoms of gaseous helium are

The subatomic particle that has the least mass is the ...

Which two properties are used to define matter? has mass and conducts heat has buoyancy and volume has mass and takes up space conducts energy and has characteristic properties

Calculate the energy if 48.7 g of Al reacts in the following reaction. (Al = 26.98 g/mol) Fe2O3 (s) + 2 Al (s) →Al2O3 (s) + 2Fe (s) ∆Hrxn = - 852 kJ.

Which type of wave has a wave perpendicular to the disturbance? Surface Longitudinal Mechanical Tranverse