Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a velocity of 20.0 m/s.

Is glass homogenous or heterogenous

Sulfur oxides combine with water in the atmosphere to produce acid rain. what is the empirical formula of a sulfur compound that is 40% sulfur and 60% oxygen?

Why is the bond angle in a water molecule less than the bond angle of methane? A. The central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. B.

Magnesium has two electrons in its valence shell, whereas chlorine has seven. Which element is more likely to form a positive ion A magnesium B magnesium C chlorine D chlorine

Whats the difference between catalyst and atom

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water

Which structures are found on sponges? pores medusae polyps stinging cells

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

What determines your blood cholesterol level?