Answer: The total energy is maintained as energy transformed
Explanation:
The kinetic energy and potential energy is been maintained as each of the experiment is been performed which is 50Joules
Answer:
ask a teacher is the correct answer.
Explanation:
You must ALWAYS ask a teacher if you are not sure about what to do during a lab activity.
Answer:
a. one atom of oxygen covalently bonded to two atoms of hydrogen via a shared pair of electrons.
Explanation:
Water - ( H₂O )
Water is polar molecule that consists of covalently linked bonds , i.e. , two covalent bonds of oxygen and hydrogen , where one oxygen is linked with two hydrogen atoms .
The bond is covalent in nature , as the electrons are shared during the bond formation .
Hence , from the question ,
The correct option about water is a.
Answer: c. 
Explanation:
Solubility product is defined as the equilibrium constant in which a solid ionic compound is dissolved to produce its ions in solution. It is represented as 
The equation for the ionization of the calcium carbonate is given as:
We are given:
By stoichiometry of the reaction:
1 mole of 
gives 1 mole of 
and 1 mole of 
.
Expression for the equilibrium constant of will be:
![K_{sp}=[Ca^{2+}][CO_3^{2-}]](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5BCa%5E%7B2%2B%7D%5D%5BCO_3%5E%7B2-%7D%5D)
![3.8\times 10^{-9}=[s][s]](https://tex.z-dn.net/?f=3.8%5Ctimes%2010%5E%7B-9%7D%3D%5Bs%5D%5Bs%5D)
Hence, the concentration in moles/liter of calcium ion in a saturated solution of calcium carbonate is
Both are considered mixtures - that is, they are made up of two or more pure substances. ... A heterogeneous mixture appears to be made of different substances. A solution appears the same throughout. In the fluid phase (gas or liquid, or any combination of those) a solution is transparent (thought not colourless).
