Equally the same paragraph
Answer:
15.75g
Explanation:
Rearrange the formula: density = mass/volume, so that mass is the subject: mass = density × volume
Now substitute (plug in) the known values into the formula:
mass = 10.5 × 1.5 ⇒ mass = 15.75g
The mass of the silver necklace is 15.75g
Hope this helps!
Elements that there Electrons equal a multiple of 8 because then they become a noble gas.
The final temperature after absorbing the energy of 990 J is 25.014 °C.
Explanation:
The specific heat capacity formula can be used to solve the given problem.
So here the heat absorbed or the Q value is given as 990 J. Then the mass of the sample of water m is given as 59 g. The initial temperature is said to be 21 °C and the final temperature has to be determined.
The specific heat capacity is given as 4.18 J/g°C.
Then,
So, the difference in temperature or the change in temperature has to be determined first.
So, the change in temperature = ΔT = T₂-T₁ = 4.014 °C
T₂-21 = 4.014
T₂ = 4.014+21 = 25.014 °C.
So, the final temperature after absorbing the energy of 990 J is 25.014 °C.