Should hydrogen be placed in group one and why

Oxygen gas O2 was placed into a closed container at 273.15K. What is the change in temperature that is required in order to increase the pressure from 2.50atm to 7.50atm and decrease the volume from 3.50L to 1.50L?

Identify C12H22O11 (sucrose) as an electrolyte or nonelectrolyte.

Which answer choice best explains why uranium-238 can be used in power plants to generate electricity? A) Nuclides of uranium-238 decay over time. They release large amounts of energy as their nuclei break apart.

Consider the following reaction, which is carried out at 300 K: CH3CH2OH + 3O2 → 2CO2 + 3H2O ∆H = - 1,235 kJ/mol and ∆S = + 0.22kJ/mol•K 1.) What is the value of ∆G? Show your work. 2.) Classify the reaction as spontaneous or nonspontaneous. 3.

When lewis structures are drawn, do you only show valence electrons?

If two moles of aluminum chloride are dissolved in two liters of water, how does the vapor pressure of the water change?

What is the cornaviris?

How to find the moles of vinegar if you only know what the volume is

Be sure to answer all parts. A concentration cell consists of two Sn/Sn2 + half-cells. The electrolyte in compartment A is 0.23 M Sn (NO3) 2. The electrolyte in B is 0.87 M Sn (NO3) 2.

Explain why the radius of an atom cannot be measured directly. (6.3)