Answer:
During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.
Explanation:
Answer:
temperature of water will be 37degree celcius
Explanation:
Absorb more thermal energy, and the rough surface will prevent it to reflect efficiently.
30 chest compressions to 2 rescue breaths
