Answer:
greenhouse effects are molecules that trap heat on earth atmosphere
Answer: The Oxygen will have a partial negative charge, and the hydrogen will have a partial positive charge.
Explanation:
Electronegativity is the tendency of an atom to attract a pair of electrons when forming a chemical bond. The more electronegative atom will attract the electrons more, and will have a partial negative charge, because the electrons are negatively charged. The less electronegative atom will have the electrons the other atom attracted further away from it, so it will have a partial positive charge.
Oxygen is more electronegative than hydrogen. Oxygen has a nuclear charge of 16 protons (positively charged), whereas hydrogen only has 1. As a result, the pull these 16 protons produce on the electrons will be stronger than the pull only 1 proton produces, and the electrons will be closer to the Oxygen atom.
Answer:
0.5 moles
Explanation:
Given data:
Number of moles of N₂O₄ = ?
Number of molecules = 3.011 × 10²³ molecules
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
Number of moles in 3.011 × 10²³ molecules of N₂O₄.
3.011 × 10²³ molecules × 1 mol / 6.022 × 10²³ molecules
0.5 moles
Answer: liquid
Explanation: a liquid has a volume that does not change (unless you add more or less liquid to it, obviously) but its shape can change depending on the container you use.
Think, if you put a liter of water into a bucket, it will still be a liter of water if you pour it into a water bottle. The only thing different is that the shape of the liquid changes.
