Answer:
Answer is Ca2+(aq)+S2-(aq)=>CaS(s)
Explanation:
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Control group: 50 dogs continuing their normal diet
Experiments group: 50 dogs chosen to eat the new food
Independent variable: dog food
Dependent variable: the dogs’ weight
Answer:
Put up the answer choices
Explanation:
endothermic means absorbing heat
Answer:
Lava is hot liquid rock. When lava flows over solid ground, the solid ground beneath it increases in temperature. What happens to the molecules in the solid ground when the temperature is increasing? The energy of the molecules in the ground decreases.
