What type of chemical reaction is NaHCO3=Na2CO3+H2O+CO2

Which statement describes magnetic field lines at the north and south pole of a bar magnet? A. field lines begin near the magnet's south pole and extend toward its north pole B.

Lab Questions 1. Why must the Alka-seltzer mixture in the beaker be stirred after the reaction is completed?

Where are the most massive elements found on the periodic table?

Fertilizers: A). are used to kill insects B). can increase crop yields by killing weeds C). supply plants with nutrients and minerals D). are only used with hybrid plants

What are particles in chemistry

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Which state of matter isn't typically found on earth?

Both black and white road surfaces absorb sunlight. the warmer road surface at the end of a sunny day is the

Which information in the periodic table indicates the number of protons in an atom? A. the position of the element in its column B. the element's chemical symbol C. the element's atomic mass D. the element's atomic number

What were the expected results of Rutherford's gold foil experiment, based on Thomson's model of the atom? How did the real results of the gold foil experiment change the accepted model of the atom?