Which is released when energy is transformed from one energy type to another?

A. chemicals B. heat C. light D. radiation

What is the half-life for a substance in which 25% of the original remains after 10 days?

A galaxy moving away from us would exhibit what type of spectrum shift?

Consider the following reactions. (Note: (s) = solid, (l) = liquid, and (g) = gas.) Mg (s) + ½O2 (g) → MgO (s) + 146 kcal/mole H2 (g) + ½O2 (g) → H2O (g), ΔH = - 57.82 kcal/mole The temperature of the surroundings will: increase decrease

An acid can be defined as a. a proton acceptor. b. a proton donor. c. neither a proton donor nor a proton acceptor. d. both a proton donor and a proton acceptor.

What is the compound with sodium and bromine called?

When the system is at equilibrium, it contains NO 2 at a pressure of 0.817 atm, and N 2 O 4 at a pressure of 0.0667 atm. The volume of the container is then reduced to half its original volume.

Which statement best describes the role of the sun in creating wind? Question 2 options: The rays of the sun push the air in all directions, creating wind The radiation of the sun reacts with water over the ocean The energy of the sun heats the land

Write the formula for a complex formed between zn2 and nh3, with a coordination number of 3.

Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. What tool will she use next?

Warm-Up A 206-gram bar of iron has sunlight shining on it. Initially, its temperature is 24.7°C. As it gains 1,070.79 joules of energy, its temperature rises to 36.2°C. Calculate the specific heat capacity of the iron bar using the formula Q = mCAT.