Answer:
energy can neither be created nor destroyed but can be transfered from one form to the other
Explanation:
Okay so you need to know that 1 L = 1000mL and 1 KL = 1000L.
-
First let’s convert 0.00845 KL to Litres by multiplying by 1000.
-
•0.00845 KL x 1000 = 8.45 L.
(then we multiply by 1000 again)
• 8.45 L x 1000 = 8450 mL.
• 8450 mL is the answer.
Answer:
chemical
Explanation:
It is breaking down the molecules. That's chemistry
<span>C. Jewelry tarnishing is an example of a chemical change.
</span>
Chemical change is a process where a current substance changes or is made into a new type of substance<span>. Unlike the physical change, which is reversible. Chemical change stays into a its new form. Take for instance these -physical change- examples, making ice cubes. The process involves solidification or freezing where the water becomes ice or solid but when it melts back to its original or typical form with respect to temperature, it’s still water. When the paper is cut into pieces it isn’t burned or exposed to a stimuli that can trigger immediate change in its composition. It’s still the same. On the contrary, baking a cake involves these different compositions or substances –flour, egg, yeast and etc. that is baked to a cake, a newly formed unified substance of all the included ingredients. <span> </span></span>
seaweed having 50 g salt in 1 L water. The bucket contains 150 g of salt in 2 L of water
amount of water present in bucket is twice to amount of water in weed
![V¬_water bucket=2×V_water weed](https://tex.z-dn.net/?f=V%C2%AC_water%20bucket%3D2%C3%97V_water%20weed)
At equilibrium, volume of water in weed is x and volume in bucket is y but concentration remain same as follows:
![50 /x=150 /y\\ Y = 3 x](https://tex.z-dn.net/?f=50%20%2Fx%3D150%20%2Fy%3C%2Fp%3E%3Cp%3E%5C%5C%20Y%20%3D%203%20x)
At equilibrium, weed loose z L from 1 L water to bucket containing 2 L as follows:
![(2 + z) = 3 (1-z)\\ (2 + z) = 3 – 3 z\\ Z = 0.25 L](https://tex.z-dn.net/?f=%282%20%2B%20z%29%20%3D%203%20%281-z%29%3C%2Fp%3E%3Cp%3E%5C%5C%20%282%20%2B%20z%29%20%3D%203%20%E2%80%93%203%20z%3C%2Fp%3E%3Cp%3E%5C%5C%20Z%20%3D%200.25%20L)
Thus, Weed will loose 0.25 L of water