Answer:
Explanation:
Hello there!
In this case, according to the given information, it is possible to recall the equation to calculate the heat, Q, in these calorimetry problems as shown below:
Thus, given the absorbed heat, mass and temperatures, we can easily calculate the specific heat of the metal as shown below:
Then, by plugging in we obtain:
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The answer is B. In the same direction as the force. Hope this helps :)
Hardening steel and keeping it from rusting
2.0 L
Answer:
Solution given:
no. of mole(n)=3.0mole
molarity(M)=1.5M
we have
<u>Volume of a substance is equal to the ratio of its no of mole to its molarity.</u>
By this we get a relation:
Volume=no.of mole/molarity
substituting value
Volume=3.0/1.5=2
The required volume is 2 litre.
Answer:
8 neutrons and 6 electrons
Explanation:
Mass number= neutrons + protons
14=x+6
x=14-6
x=8
protons=electrons
6 protons=6 electrons