DATA: Trial 1
Trial 2
Mass of snack
3.57g
5.86g
Mass of water
100g
100g
Initial temp of water 21
22
Final temp of water 23
25
Change in water
temp
CALCULATIONS: (Use the average value for all calculations)
1. Determine the mass of water heated.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

i need mutiple choices

може ли да зареждате повече информация, моля

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.