Whats is a chemical change of a paper bag

Why did the alpha particles bounce back during Rutherford's experiments?

What are the primary components of rocks? A. minerals B. feldspars C. granites D. gabbros

Why can leaving an interior light on in a car cause the battery to die? A. It drains the electrolyte from the cells B. It causes the battery to act only galvanically C. It causes the alternator to run nonstop D.

A balance measures mass to 0.001 g. If you determine the mass of an object that weighs about 30 g, would you record the mass as 30 g, 32 g, 32.1 g, or 32.075 g? Explain your choice by writing one or two complete sentences that describe your thinking.

If 15.0 g of a solid dry ice (Co2) is placed into an evacuated 5.00 L container and allowed sublime until it is entirely in the gas phase, what pressure (in atm) will the gas exert at 299 K?

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?

In a chemical equation the products appear on which side of the equation? A. Left B. Top C. Right D. Bottom

What does the shape of a protein molecule resemble?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, velocity velocity, height height, position

Which radiation detection device is the best to use for measuring the presence of radiation in large moving objects where constant monitoring is impossible? film badge Geiger counter cloud chamber scintillation counter