Is 2na + cl --> 2 nacl a balanced chemical equation? is it obeying the law of conservation of matter?

Astate of matter all that has define volume and can flow is a(n)

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.