How many moles of Na2O are required to react to produce 1.57 moles of NaOH?

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

What role does weathering have in shaping earth’s surface? a) it allows sediments to fall out of a medium. b) it sediments settle on a new surface. c) it breaks down older material into sediments. d) it transports sediments to a different location. will give brainliest, answer quickly.