Give the Formula for the Ionic compound that would form from combining the following atoms. (PLS HELP) 1.) Be, Al
2.) Si, N
3.) Mg, Cl
4.) K, N
5.) Ca, C

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum