Which action best demonstrates the transformation of mechanical energy to heat energy to light energy?

A) Striking a matchstick

B) Squeezing a sponge ball

C) Rubbing hands together vigorously

D) Releasing a stretched spring

Hclo is a weak acid (ka = 4.0 * 10-8) and so the salt naclo acts as a weak base. what is the ph of a solution that is 0.030 m in naclo at 25 °c?

Infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on Earth to study the earliest stages of star formation, before a star begins to emit visible light.

Which of the following describes the characteristics of a solid? made up of particles packed closely together, having both definite shape and definite volume made up of particles packed relatively close together, having an indefinite shape but a

How is diffusion different from the other types of transport I need at least a paragraph

Why cant we just put in subscripts?

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete