Which equation illustrates conservation of mass? 1. H2 + Cl2 - HC1

2. H I C12 - 2HC1

3. H2 + O2 - H20

4. H2 - 02 - 2H20

Write the equation for the reaction of pentanoic acid with KOH

Muriatic acid is an old name for hydrochloric acid. The commercial grade (impure) solution is still sold as muriatic acid. You use it in toilet bowl cleaners, for cleaning masonry, and for adjusting the pH of swimming pools.

Give the electron configuration for a neutral atom of chlorine

Which idea comes engliment and is reflected in the constitution

The gas in a closed container has a pressure of 3.00 x 10² kPa 30 ° C. What will the pressure be if the temperature is lowered to - 172 ° C?

What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° C?

What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be

What element is represented by the following electron configuration: 1s22s22p63s23p64s23d4 Question 2 options: Cr Ca Ge Ar

He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?

The weighted average atomic mass of an element depends upon the a. relative abundance of protons in the element b. mass and relative abundance of each isotope of that element c. mass and relative abundance of each neutron of that element d.