Determine the specific heat capacity of an unknown substance if 47.5 g block of the substance at 78.9 °C is placed in 78.5 g of water at 8.20 °C and the final temperature of

the block is 23.6 °C.

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock