Answer:
In physics and chemistry, the law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.
Explanation:
That is what I think on the subject
Answer:
d
Explanation:
the rainwater is not infiltrating into the ground.
Answer:
2.9 g/cm³
Explanation:
From the question given above, the following data were obtained:
Mass = 236.376 g
Volume = 81.5 cm³
Density =?
Density can be defined as the mass of a substance per unit volume of the substance. It can be expressed mathematically as:
Density = mass /volume
With the above formula, we can obtain the density of the object as shown below:
Mass = 236.376 g
Volume = 81.5 cm³
Density =?
Density = mass /volume
Density = 236.376 / 81.5
Density = 2.9 g/cm³
Thus, the density of the object is 2.9 g/cm³
Answer:
I believe the answer is conduction.
<span>Solid lithium oxide, the basic anhydride of lithium hydroxide reacts with water to make lithium ions and hydroxide ions.
Li2O(s) + H2O(l) --> 2LiOH(aq) ...... molecular equation
Li2O(s) + H2O(l) --> 2Li+ + 2OH- ..... ionic equation, and net ionic equation
BUT!!!!! The decomposition of potassium chlorate into KCl and O2 gas does not take place in aqueous solution. The equation should be.
2KClO3(s) --> 2KCl(s) + 3O2(g)
No ionic equation. There is nothing in solution.
This reaction does not occur in aqueous solution.
2Na(s) + I2(g) --> 2NaI(s)
No ionic equation. There is nothing in solution.
Clearly, to have an ionic equation there must be ions, and to have ions the salts have to be dissolved in water.</span>
