Lanets formed from left over from the formation of the sun at the center of the cloud. a. gravel c. solar wind b. gas, ice, and dust d. asteroids

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

What is a metal replacement reaction

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