All categories

3 years ago

The density of Mg is 1.74g/cm3. The density of strontium is 2.60g/cm3. What would you expect the density of Ca to be?

Chemistry

1 answer:

Tomtit [17]3 years ago

6 0

The density of Ca will be between that of Mg and Sr

Explanation:

Ca, Mg and Sr are group II elements. They are called alkali earth metals. The correct order of the elements in this group are: Be, Mg, Ca, Sr, Ba and Ra.

Density is an intensive property of matter which describes the amount of matter(mass) per volume of a substance.

Density varies proportionally with mass. The higher the mass, the higher its density.
On the periodic table, atomic mass which the number of protons and neutrons in the nucleus of an atom increases down the group.
This implies a progradation in the value of density down the group. Therefore one expects that the value of density of Ca will fall between that of Mg and Sr. It cannot be more than 2.6g/cm³ nor less than 1.74g/cm³.

Learn more:

density brainly.com/question/2658982

mass number brainly.com/question/2597088

#learnwithBrainly

You might be interested in

Is adding zinc to hydrogen chloride a chemical or physical change

BlackZzzverrR [31]

That is a chemical change.. Hope I helped!

8 0

3 years ago

Read 2 more answers

What is the charge on a hypothetical ion with 85 protons and 83 electrons?

lys-0071 [83]

Explanation:

hope this answer was helpful

7 0

3 years ago

Acetylene is the substance burned in oxy-acetylene torches. Write a balanced equation for the complete oxidation reaction that o

nexus9112 [7]

Answer: $2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O$

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products must be same as the mass of reactants.

For the conservation of mass, the number of atoms of each element must be same in reactants and products. Thus we need to balance the reaction by writing appropriate stochiometric coefficients.

All the hydrocarbons burn in oxygen to form carbon dioxide and water.Thus the complete balanced equation is:

$2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O$

4 0

3 years ago

What is La Niña?

Travka [436]

<span>La Nina a cooling of water in the Pacific that happens at irregular intervals and is associated with widespread changes in weather patterns complementary to those of El Niño, the heating of water. It is at the least less extensive and damaging in their effects.</span>

6 0

3 years ago

How is a kilogram of cotton balls similar to a kilogram of bricks

Nutka1998 [239]

Answer:

because they are both a kilogram

Explanation:

7 0

3 years ago