C. Its density is less than water
This is why. The denser the object is the farther it sinks. Since crystallized ice floats it is less dense than the surrounding liquid.
Exposure to small amounts of lead<span> over a long period of time is called chronic toxicity. </span>Lead<span> is particularly </span>dangerous<span> because once it gets into a person's system, it is distributed throughout the body just like helpful minerals such as iron, calcium, and zinc. And </span>lead<span> can cause harm wherever it lands in the body.</span>
Reaction between Calcium Nitrate and Sodium oxalate results in the formation of Sodium nitrate and Calcium Oxalate through Double displacement reaction.
<h3>What is Double displacement reaction ?</h3>
A double displacement reaction is a type of chemical reaction in which the reactant ions exchange places to form new products.
Usually, a double displacement reaction results in precipitate formation.
The chemical bonds between the reactants may be either covalent or ionic.
Drawing representing the reaction that occurs between calcium nitrate and sodium oxalate is attached as figure.
Learn more about Double displacement reaction here ;brainly.com/question/13870042#SPJ1
<span><span>Percent =mass of the elementx100</span>molar mass of compound</span><span> Find the mass percents for the elements present in H2SO4.molar mass of H2SO4<span> = 2(1) + 32 + 4(16) = 98 g</span><span>mass of H = 2 mol H x 1.008g/mol = 2.016 gmass of S = 1 mol S x 32.00g /mol = 32.00 gmass of O = 4 mol O x 16.00g/mol = 64.00 gmass % H = 2.016g/98g x 100 = 2.06%mass % S = 32.00g/98g x 100 = 32.6%mass % O = 64.00g/98g x 100 = 65.3% </span>Calculate the mass % of the elements present in glucose, C6H12O6. </span>
