Explain why the brightness of the light emitted by a flashlight decreases as the flashlight moves farther away from you

The following are the main steps in the generation of the action potential. 1. Sodium channels are inactivated2. Voltage gated potassium channels open and potassium moves out of the cell, initiating repolarization. 3.

The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has the pressure of the gas changed? It has increased to two times its original value.

Which of the following statements is true? A. Lithium will only react with metal ions that require the addition of one electron because of the fact that lithium only gives up one electron B.

What is the usual result in ocean breaks bubbles into smaller and smaller pieces (Weathering, Erosion, and Deposition)

An automobile is driving uphill. Which form of energy is not involved in this process? A. Chemical B. Potential C. Kinetic D. Electromagnetic

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420