Answer:
they all reacted the same
Explanation:
Answer:
d. P2O5.
Explanation:
We find the ratio of the atoms by dividing the percentages by the relative atomic masses:
P : 43.6 / 30.974 = 1.4076
O: 56.4 / 15.999 = 3.5252
1.4076 : 3.5252
= 1 : 2.5
= 2:5.
So the answer is P2O5.
E = mct
Energy = (mass) x (specific heat capacity of water) x (change in temp)
585.24 = 53.2 x 4.2 x (X-24.15)
585.24 divided by 53.2 divided by 4.2 = X - 24.15
2.62 = X - 24.15
X= 26.77degrees C
(Specific heat capacity for water is 4.2 but is different for other liquids)
Mechanical energy<span> of </span>an object<span> can be the result of </span>its<span> motion
i think
</span>
Answer:
![m=8.7g](https://tex.z-dn.net/?f=m%3D8.7g)
Explanation:
Hello,
In this case, it is widely known that when measurements with different significant figures are put under mathematical operations, the final result must be displayed with the same amount of significant figures of the shortest measurement, thus, due to the fact that 5.5 g has two significant figures only the result is consequently shown with two significant figures as well as shown down below:
![m=5.5g+2.27g+0.8995g\\\\m=8.6695g](https://tex.z-dn.net/?f=m%3D5.5g%2B2.27g%2B0.8995g%5C%5C%5C%5Cm%3D8.6695g)
By rounding the first six to seven due to the fact that the next six is greater than five, according to rounding rules, the result is:
![m=8.7g](https://tex.z-dn.net/?f=m%3D8.7g)
Best regards.