do you think that the elements X and Y are metals or nonmetals lastly,  In terms of the activity series, use the Eo values given to decide whether X and Y can be considered to be active or less active elements. Please give your reasoning.

Sodium hydrogen sulfate is used as a cleaning agent and as a flux (a substance that promotes the fusing of metals and prevents the formation of oxides). One of the ways in which sodium hydrogen sulfate is manufactured is by reacting sodium dichromate, Na2Cr2O7, with sulfuric acid. This process also forms water and chromium(VI) oxide, CrO3. Write a balanced equation for this reaction. (You do not need to include states.) How many kilograms of sodium dichromate, Na2Cr2O7, are necessary to produce 130.4 kg of sodium hydrogen sulfate? How many kilograms of chromium(VI) oxide are formed when 130.4 kg of sodium hydrogen sulfate is made? What is the minimum volume of 18.0 M H2SO4 solution necessary to react with 874.0 kg of sodium dichromate? What is the maximum mass of sodium hydrogen sulfate, NaHSO4, that can be formed from the reaction of 874.0 kg of sodium dichromate with 400.0 L of 18.0 M H2SO4?

Pick any four non metallic elements from Group 3A - 8A. Group_A Element: a) Discuss one benefit or hazard of the element. b) Discuss one commercial application of element A Element: Group a) Discuss one benefit or hazard of the element. b) Discuss one commercial application of element Group_A Element: a) Discuss one benefit or hazard of the element. b) Discuss one commercial application of element Group_A Element: a) Discuss one benefit or hazard of the element. b) Discuss one commercial application of element

Select all the elements whose elemental forms would exist as networks: Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon

As the atomic number of Group IA elements increases, does the reactivity of the elements increase or decrease? Suggest a reason for this trend based on the ionization energy simulation on the table. That is, what causes the reactivities to follow this order? Combination Initial Top Layer Color Final Top Layer Color Initial Halogen Final Halogen Reaction? (Yes or No) Cl2 + NaBr Clear yellowish orange Cl2 NaBr yes Cl2 + NaI Clear purple Cl2 NaI yes Br2 + NaCI Yellowish Orange yellowish orange Br2 Br2 no Br2 + NaI yellowish orange purple Br2 NaI yes I2 + NaCl purple purple I2 I2 no I2 + NaI purple purple I2 I2 no

Which of the following is the most active non-metal? All can be found in the 2nd column from the right. Br - bromine F - Fluorine CI - Chlorine O I - lodine

In what ratio would you expect Mg and Cl to combine? Why?

What are displacement reactions that occur in the group 7 elements and describe what happens and then explain why this happens ?

which element is a metal in period 5 of the periodic table

The elements are arranged in the periodic table by A - the valence orbital in which the last electron is located B- in the form of chains composed of elements that have the same orbit the main C- in the form of groups that have the same last electronic arrangement D- All of the above