Water would heat up the slowest if four substances were exposed to sunlight because it has the highest specific heatcapacity.
Specific heat capacity is the amount of thermal energy required to raise the temperature of a system by one temperature unit (1°C) without any change of phase.
According to this question, a table comprising the specific heat of four substances were given. In the table, water has the highest specific heat capacity.
This means that water would heat up the slowest if four substances were exposed to sunlight because it has the highest specific heat capacity.
Learn more about specific heat at: brainly.com/question/11297584
#SPJ5
The 90 percentage of atoms in the entire universe are hydrogen atoms.
learn about hydrogen atoms,
#SPJ2
b.metallic bonding.
c.covalent bonding.
d.hydrogen bonding
Answer: Option (a) is the correct answer.
Explanation:
When there is transfer of electrons between the two atoms then the bond formed is known as ionic bond.
In binary atomic systems, there is formation of ionic bond between a metal and non-metals. As a result, there will be high difference in electronegativity between the two atoms.
Therefore, this also shows potential for electrons transfer.
For example, NaCl is an ionic compound and also there is high difference in electronegativity between the Na and Cl atom.
Thus, we can conclude that ionic bonding is a type of bonding which involves the complete transfer of a valence electron from a less electronegative atom to a more electronegative one.
The answer is: a. ionic bonding.
Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).
For example, compound magnesium chloride (MgCl₂) has ionic bond.
In this example, chlorine is large company, because it has greater electronegativity than magnesium (small company) and take electrons (assets) from it.
Magnesium (Mg) transfers two electrons, became positive cation, to chlorine (Cl), which became negative anion.
Magnesium is metal from group 2 and chlorine is nonmetal from group 17 of the Periodic table.
Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.
(3) Zn2CO3
(4) Zn3CO3
Please show work
Answer:
the answer is D
Explanation:
i did the test
chromium, calcium, potassium
potassium, calcium, chromium
potassium, chromium, calcium
Answer: The correct order is:
Potassium > calcium > chromium
Explanation:
Potassium belongs to the group of alkali metals with group number 1 in a periodic table. Potassium easily displaces hydrogen atom from the water molecule.
Where as calcium belongs to group (II) and easily displaces hydrogen atom from the water molecule.
In a reactivity series potassium is comes before the calcium metal which means that it is more reactive than calcium metal.
Potassium > calcium
Where as chromium metal is member of group 6 and chromium reacts with steam and acids to form hydroxides. But doesn't reacts with water(in liquid phase) which means it less reactive then potassium and calcium.
Potassium > calcium > chromium
potassium, calcium, chromium