Answer:
the first one is protons and electrons the second one is protons the third one is neutrons and the forth one is also neutron
Answer: Option (1) is the correct answer.
Explanation:
Oxygen, sulfur, selenium and tellurium are all group 8 elements. As we go gown the group there will be decrease in electronegativity of atoms.
Also, more is the electronegativity of an atom more it will attract the electrons towards itself. This will result in the formation of partial charges on the combining atoms. Thus, the molecule becomes polar.
Here, oxygen is the most electronargative out of the given options, so it will attract the electrons more towards itself. Hence, it will have the strongest hydrogen bonding at STP.
The general equation for showing one nonmetal replacing another nonmetal in a compound would be BA + C = BC + A. This is an example of a single-replacement reaction where one of the reactant replaces one atom in a compound producing another substance having different properties.
Answer:
5.90x10²² atoms of gold are present in the cube
Explanation:
First, we must find the volume of the cube in cm³. With density we can find the mass of the gold and the moles using its molar mass. As 1 mol = 6.022x10²³ atoms we can find the number of atoms:
<em>Volume in cm³:</em>
(10.0mm)³ = 1000mm³
<em>1mm³ = 0.001cm³</em>
1000mm³ * (0.001cm³ / 1mm³) = 1cm³
<em>Mass gold:</em>
1cm³ * (19.3g/cm³) = 19.3g Gold
<em>Moles Gold:</em>
19.3g * (1mol / 197.0g) = 0.0980 moles Gold
<em>Atoms gold:</em>
0.0980 moles Gold * (6.022x10²³ atoms / mol) =
<h3>5.90x10²² atoms of gold are present in the cube</h3>
Answer:
The substances that result from a chemical reaction.
Explanation:
The substances produced at the end of the reaction are known as the products.