Meteorological instruments are the hardware used to test the condition of the climate at a given time. Every science has its very own interesting arrangements of lab hardware.
Answer:
B) They are made up of particles that travel in a curved path when in motion.
Explanation:
We know that gas, being a state of matter, is made up of particles. John Dalton's solid-sphere model was proven to be incorrect by Ernest Rutherford's gold foil experiment.
These particles do NOT always move very slowly. There are multiple different factors that affect the speed of the particles such as temperature or concentration.
Answer:
Variable is a changebale factor in an experiment.
Explanation:
2Mg + O₂ ---> 2MgO
2 atoms Mg --- 1 molecules O₂
X atoms Mg --- 5 molecules O₂
X = 2×5
X = 10 atoms Mg