Answer:
Higher melting and boiling points signify stronger noncovalent intermolecular forces. Consider the boiling points of increasingly larger hydrocarbons. More carbons means a greater surface area possible for hydrophobic interaction, and thus higher boiling points.
If the ion is named by (element-name) + ion, it is the element with a positive charge.
This means:
Sodium ion: Na(1+)
Aluminum ion: Al(3+)
If the ion is named by (element-prefix)+ide, then it has a negative charge.
This means:
Chloride: Cl(1-)
Nitride: N(3-)
Finally, if it has roman numerals after the name, that is the amount of positive charge the ion has.
Therefore:
Iron (II): Fe(2+)
Iron(III): Fe(3+)
Answer:
Its job is to store light
Explanation:
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. ... Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules.
Answer: 6.2 moles
Explanation:
C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g)
The balanced equation above shows the combustion of propane, C3H8 in oxygen, O2 to yield carbon dioxide, CO2 and water, H2O
The mole ratio of combustion are as follows:
1 mole of C3H8 react to produce 4 moles of H2O
1.55 mole of C3H8 will react to produce Z moles of H2O
To get the value of Z, cross multiply
Z x 1 mole = 1.55 mole x 4 mole
Z = 6.2 moles
Thus, 6.2 moles of water will be produced from 1.55 moles of propane
Answer:
# The simpliest is: H-H
# All gases formed by elements of the 7th group in the periodic table:
F-F, Cl-Cl, Br-Br, I-I
# In general, Covalent bonds formed between atoms of the same kind are usually non-polar.
Explanation:
Hope this answer will help you.
