Which of the following elements is least likely to form a cation that will then form an ionic bond with an ion of a Group 7A element?

A. K

B. Rb

C. Fr

D. I

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Is an orange considered acidic or basic? How do you know?

Tell how many significant figures this number contains: 18.20

How does the intensity of radiation (as measured by Geiger counter vary as distance from the radiation source increases? (that is does intensity increase or decrease? is the graphed line straight or curved?

Which technology is used to deal with waste management? A) waste-to-energy combustion B) compositing C) landfill D) recycling

What is the molarity of a solution that contains 4.53 moles of lithium nitrate in 2.85 liters of solution? 0.874 M 0.629 M 3.77 M 1.59 M 2.57 M 1.98 M

In which type of unconformity is the eroded rock tilted or folded? disconformity nonconformities angular unconformity scarp unconformity

A liquid solution can be made from solid, liquid, or gas solute.

How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 850 c?

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