Substances that store chemical energy are primarily fuels such as coal, wood, natural gas, petroleum and propane, as well as foods, batteries and matches. Encyclopædia Britannica defines chemical energy as energy stored in the bonds of chemical compounds that can be released during a chemical reaction.
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Answer:
The density of the liquid is 0.87 g/ml
Explanation:
Density = 17.4g divides 20ml = 0.87 g/ml (rounded to one significant figure)
Answer:
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Explanation:
Answer:
A pteridophyte is a vascular plant that disperses spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden. Ferns, horsetails, and lycophytes are all pteridophytes.
Explanation:
By being in the same area or Causing weathering at the same time or place
