The tongue depressor will float on water because its density is less than that of water.
<h3>When do substances sink or float in a liquid?</h3>
Substance will either float or sink in a liquid depending on the comparative densities of the substance and the liquid.
A substance will float in a liquid if it is less dense than the liquid.
A substance will sink in a liquid if it is denser than the liquid.
The density of the tongue depressor = 4.54/6.78 = 0.67 g/cm³
The density of water is 1 g/cm³.
Therefore, the tongue depressor will float on water.
In conclusion, the density of substances determines whether thy float or sink in water.
Learn more about density at: brainly.com/question/952755
#SPJ1
<span>There are three different subatomic particles present in the atoms of each element: neutron, proton and </span>electron<span>. It is the </span>electrons<span>, and more specifically the valence </span>electrons<span>, that determine the reactivity of an element.</span>
H2SO4 is referred to as a strong acid and is denoted as option A.
<h3>What is an Acid?</h3>
This refers to any substance which tastes sour when in water and changes the color of blue litmus paper to red. It is usually very corrosive and are used in industries for different functions.
H2SO4 is referred to as a strong acid because it dissociates completely in its aqueous solution or water.
Read more about Acid here brainly.com/question/25148363
#SPJ1
Answer:
% yield = 82.5%
Explanation:
HgO + 2Cl₂ → HgCl₂ + Cl₂O
Our reactants are:
Our products are:
We do not have information about moles of reactants, but we do know the theoretical yield and the grams of product, in this case Cl₂O, we have produced.
Percent yield = (Yield produced / Theoretical yield) . 100
Theoretical yield is the mass of product which is produced by sufficent reactant. We replace data:
% yield = (0.71 g/0.86g) . 100 = 82.5%
