Answer:
1. How many atoms are in 6.5 moles of zinc? 6.5 moles. 6.02 x 10. 23 atoms = atoms. 3. Convert 2.35 moles of carbon to atoms. 2.35 moles 6.02 x 10. 23.
Answer:
The vapor pressure at 60.21°C is 327 mmHg.
Explanation:
Given the vapor pressure of ethanol at 34.90°C is 102 mmHg.
We need to find vapor pressure at 60.21°C.
The Clausius-Clapeyron equation is often used to find the vapor pressure of pure liquid.
We have given in the question
And is the Universal Gas Constant.
Taking inverse log both side we get,
ZnO
is the answer for what is the chemical formula for zinc?
The strong attraction of each shared electron to both nuclei stabilizes the system, and the potential energy decreases as the bond distance decreases. If the atoms continue to approach each other, the positive charges in the two nuclei begin to repel each other, and the potential energy increases. We have learned that halide salts of elements in group1 are typically ionic compounds. We would expect LiCl to exist as Li+ cations and Cl- anions (and it does). However, if we move one column to the right, lithium’s neighbor beryllium forms a different type of bond altogether. This bond consists of shared electrons between the Be and Cl atoms, not electrostatic attraction among ions. Molecular compounds are those that take the form of an individual molecule. Molecular compounds are generally comprised of two or more nonmetal atoms. Familiar examples include water (H2O), carbon dioxide (CO2) and ammonia (NH3). Recall that the molecular formula shows the number of each atom that occurs in a molecule of that compound. One molecule of water contains two hydrogen atoms and one oxygen atom. Hydrogen (H2) is an example of an element that exists naturally as a diatomic molecule. A diatomic molecule is a molecule containing two atoms.
Most atoms attain a lower potential energy when they are bonded to other atoms than when they are separated. Consider two isolated hydrogen atoms that are separated by a distance large enough to prevent any interaction between them. At this distance, the potential energy of the system is said to be equal to zero (
Answer:
3
Explanation:
Al + CuSO₄ → Al₂(SO₄)₃ + Cu
two aluminum atoms in products. put 2 in front of Al in reactants.
2 Al + CuSO₄ → Al₂(SO₄)₃ + Cu
three sulfur atoms and twelve oxygen atoms in products. put 3 in front of CuSO₄ in reactants.
2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + Cu
three copper atoms in reactants. put 3 in front of Cu in products.
2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + 3 Cu
The equation is balanced. Hope that helps.