Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called___

A. radioactive

B. isotopes

C. nuclei

D. tracers

Hydrogen gas, iodine vapor, hydrogen iodine are mixed in a flask and heated to 674°C. H2 (g) + I2 (g) ⇋ 2 HI (g) Kc = 49 at 674°C If the initial concentrations of hydrogen gas and iodine vapor are both 0.

What protects living things from too much ultraviolets radiation?

A reaction vessel for synthesizing ammonia by reacting nitrogen and hydrogen is charged with 5.79 kg of h2 and excess n2. a total of 26.8 kg of nh3 are produced. what is the percent yield of the reaction?

Sound travels through a medium. Does sound travel in space? Explain why or why not:

Which of the following answers best describes how velocity and acceleration are related? Question 18 options: Acceleration is another word for velocity. Velocity is the rate of change in acceleration.

Which of the following is not true about performing biological investigations reading and understanding Metric system

At 29°C, Kp = 5.3 ✕ 102 atm-2 for the following reaction. N2 (g) + 3 H2 (g) equilibrium reaction arrow 2 NH3 (g) When a certain partial pressure of NH3 (g) is put into an otherwise empty rigid vessel at 29°C, equilibrium is reached when 55.

If ice is heated at constant pressure of 0.0512 ATM will it

The sun's inner core is the hottest part of the sun true or false

When light from the sun warms the ground, the transfer of heat energy is called A) conduction. B) power. C) radiation. D) reflection.