The rate of effusion of an unknown gas was measured and found to be 55.4 ml/min. under the same conditions, the rate of effusion of o2 is found to be 51.8 ml/min. which of the following could be the unknown gas? n2
co
n2o
c2h2
none of these

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

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons