The density of a liquid form of a material is always less than the density of the solid form of that same material true or false
Answers
Answer:
False
Explanation:
This property depends on the intermolecular interactions of the analyzed compound.
In most cases, this property is fulfilled, but one of the most important exceptions is water since ice cubes float in liquid water which means that its density is lower than that of liquid water.
This is due to one of the types of bonds that binds hydrogen bonds to water molecules.
Hydrogen bridges are a molecular interaction that occurs between the hydrogen in one molecule of water and the oxygen in another molecule.
Recall the formula of the density
The volume is inversely proportional to the density this means that the lower the volume the higher the density and the higher the volume the lower the density.
This type of bonding means that when the freezes there is more space between the molecules, then they occupy a larger volume
Therefore, if we have the same mass in the liquid state and the solid-state, the molecules in the liquid state will be closer together occupying less volume (higher density) and the molecules that are in the solid-state occupy a greater volume (lower density)
Related Questions
Positrons are spontaneously emitted from the nuclei of(1) potassium-37 (3) nitrogen-16(2) radium-226 (4) thorium-232
Which substance can act as an arrhenius base in an aqueous solution
A salt is dissolved in water, which has a boiling point of 100 degrees celsius. the boiling point of the solution would be?
The color and temperature of stars are closely related. Which color star is the hottest?Use the drop-down menus to identify which of these stars is the smallest, which is the largest, and which is in the middle.
Answers
Answer:
Those aspects which are something a village needs are specified beneath.
Explanation:
- Things being equally necessary to make living simpler and therefore more enjoyable. The government has promised to continue providing basic facilities to either an unpopulated location, including such roads, drinkable water, as well as electric power.
- Therefore, throughout the village, certain things accessible with maximum variety and quality that have become the basic requirements for this human existence.
(2) 2H2O(l) + energy → 2H2(g) + O2(g)
(3) H2O(l) → H2O(s) + energy
(4) H2O(g) → H2O(l) + energy
Answers
The answer is B because energy was added to 2H2O in order to produce a chemical change of 2H2 and 02 seperately.
Final answer:
The balanced equation that represents a chemical change is 2H2O(l) + energy → 2H2(g) + O2(g).
Explanation:
The balanced equation that represents a chemical change is (2) 2H2O(l) + energy → 2H2(g) + O2(g). In this equation, we see the reactant, water (H2O), being converted into two separate products, hydrogen gas (H2) and oxygen gas (O2), with the addition of energy. This indicates a chemical change taking place where new substances are formed.
Learn more about balanced chemical equation here:
#SPJ6
Answers
Answer:
Not too reactive
Explanation:
Iodine is a halogen and is reactive, but it is significantly less reactive than other halogens like chlorine, bromine, and fluorine.
True
False
Answers
The answer is true. Water does have one the highest specific heat capacities.
Answers
Answer:
The stars when they release their helium and get rid of their cape and throw it into space is because it is already the end of their life
Explanation:
During a portion of its life, a bright star due to the thermonuclear fusion of hydrogen in helium in its nucleus, which releases energy that crosses the interior of the star and then radiates into outer space. When the hydrogen in the nucleus of a star is almost depleted, almost all heavier elements than naturally produced helium are created by stellar nucleosynthesis during the life of the star and, in some stars, by nucleosynthesis of supernovae when explode At the end of its life, a star can also contain degenerate matter
Answer: the answer is white dwarf
Explanation:
1s22s23s22p1
1s32s32p1
1s12s12p5
Answers
Answer : The correct option is,
Explanation :
Electronic configuration : It is defined as the arrangement of the electrons of an atom in an atomic orbital.
The given element is, nitrogen.
The nitrogen element belongs to group 15 and the atomic number of nitrogen is 7.
As we know that the number of electrons is equal to the number of atomic number.
The number of electrons present in nitrogen = 7
Thus, the electronic configuration of nitrogen is,
1s22s22p3 considering N is the third element in the 2nd P sublevel