A magnetic field is: a piece of ground with lots of iron in it.

B the space around a magnet where it attracts magnetic materials.

C the space around a magnet where it attracts all metals.

D the space around a magnet where it repels magnetic materials.

B the second one is the answer

a lab group reacts sodium oxide (na2o) with hydrochloric acid (hcl) to produce sodium chloride (nacl) and water (h2o). when writing their lab report, they came up with the following equation to represent the reaction:

na2o + hcl -> nacl + h2o

does this equation satisfy the law of conservation of matter? why or why not?

explanation: