Which subatomic particles are located in the nucleus of an He-4 atom?

(1) electrons and neutrons

(2) electrons and protons

(3) neutrons and protons

(4) neutrons, protons, and electrons

Which term identifies a reaction that breaks apart macromolecules?

Which type of radiation is the smallest in size? alpha radiation beta radiation gamma radiation positron radiation

How many valence electrons does chlorine have?

Write the equilibrium constant for the following equation: H2O (l) ⇔ H + (aq) + OH - (aq)

Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A particular alloy with a density of 8.80 g/cm3 and containing 0.073% Si by mass is used to make a rectangular plate that is 15.0 cm long, 12.5 cm wide, and 2.

A pump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of air in the pump? 0.2 l 1.0 l 2.0 l 4.0 l

How can there be snow near a giraffe's home This is actually science so yeah

If a sealed syringe that contains some gas in heated in which direction will the syringe plunger move

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.

What is the process all rocks are continuously in during which that can change into other types of rocks