![subject](/tpl/images/cats/geografiya.png)
Geography, 11.10.2019 03:30 danielmartinez024m
You found a shiny rock and want to find out if its gold. the mass(weight) of the rock is 45 g. you put the rock in boiling water, and the you put it in a thermos together with 1.2 dl ethanol. the thermos has the high-capacity of 31 j/k. both ethanol and the thermos had the starting temperature of 18.0°c, and stabilize at 19.5°c after the rock is put in.
how can we use this information to determine if it's gold or not?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Geography
![question](/tpl/images/cats/geografiya.png)
Geography, 22.06.2019 17:20
Which of the following factors is not used to measure a country’s standard of living? a.) life expectancy b.)educational levels c.)divorce rates d.) gross income
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 23.06.2019 14:00
Iceland has taken advantage of its geology to meet a. political needs b. energy needs c. cultural needs d. economic needs answer b. energy needs
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 24.06.2019 07:00
Pythagorean theorem what is the value of x? x = 2 sides are 8 and 10
Answers: 1
![question](/tpl/images/cats/geografiya.png)
Geography, 24.06.2019 10:00
Which area is it likely to find the most population in an urban areaa rural area a suburban area
Answers: 1
You know the right answer?
You found a shiny rock and want to find out if its gold. the mass(weight) of the rock is 45 g. you p...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 05.05.2020 00:29
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.05.2020 00:29
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:29
![question](/tpl/images/cats/geografiya.png)
Geography, 05.05.2020 00:29