What compoud has 39% of Carbon mass?

A mixture of emanations from radioactive atoms is passed through electrically charged plates, as shown in the diagram. The nuclear emanations 1, 2, and 3 are called, respectivley

Which of the following types of reactions would decrease the entropy within a cell? A. Dehydration reaction, B. Hydrolysis, C. Respiration, D. Digestion, E. Catabolism

8. What is the speed of a wave that has a wavelength of 150 m and a frequency of 540 hz?

Be sure to answer all parts. Plutonium-242 decays to uranium-238 by emission of an α particle with an energy of 4.853 MeV. The 238U that forms is unstable and emits a γ ray (λ = 0.02757 nm). (a) Write a balanced net equation for these reactions.

What sort of element can be found in Group 13 of the periodic table? A. noble gas B. alkali metal C. metalloid D. halogen

The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container is opened, the molecules will escape from the container.

Why is fluorine a gas?

What is the empirical formula for a compound if a sample contains 3.72g of p and 21.28g of cl?-pcl5-pcl3-p2cl10-p2cl5

Use the equation 2HgO--> 2Hg+O2 to find how many moles of mercury are produced if 27 g of oxygen are produced. 2.1 1.3 2.6 2.4

How much mass does an electron, proton, and neutron have?