Explain the alignment of Earth, Sun and Moon during a lunar and solar eclipse.

Give the number of covalent bonds that a carbon atom can form.

Answer quickly i'm out of time! If the [H+] = 0.05 M, what is the pH of the solution, and is the solution a strong acid, weak acid, strong base, or weak base? a. pH = 1.3, weak acid b. pH = 12.7, weak base c. pH-12.7 strong base d. pH = 1.

Name the salt [ni (h2o) 3 (co) ]so4. the oxidation number of nickel is + 2. enter the name.

Which of the following types of intermolecular forces exist temporarily between two O2 molecules? London dispersion Hydrogen bonding Dipole-dipole bonding None of the above

Which ion below is present in greatest concentration in a basic (alkaline) solution

Generally, when going down a group on the periodic table: atomic radii decrease ionic radii increase electronegativity increases reactivity decreases

Predict: What element would result from the beta decay of Bromine?

How many carbon atoms are present in 1.84 moles of C2H6O?

A student took the weighted average of the isotopes that make up one element. What was the student trying to determine?

Chemicals that cause cancer or called