If you were asked to convert 3.5 moles of aluminum to grams, which of the following should you use for the conversion? . select one: . a. fraction: 6.022 times 10 superscript 23 atoms al over one mol al atoms. b. fraction: 26.981 g al over one mol al. c. fraction: 13.0 g al over one mol al. d. fraction: 6.022 times 10 superscript 23 atoms al over 26.981 mol al atoms.

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

What shape would a molecule with two bound groups and two lone pairs have?

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy