Which of the following best represents a compound? Iron, salt, river sediment or ocean water

Ammonium nitrate absorbs 26 kj/mole of heat when it is dissolved in water. why does this compound readily dissolve in water? 1. ammonium ions and nitrate ions are more stable when surrounded by water than they are in the ionic solid. 2.

You are given a cube with a length of 2.5 cm a width of 2.5 and a height of 2.5cm you place it on a scale and it's mass is 295g calculate the density

If two poisonous gases are combined chemically which of the following will be true of the resulting compound?

In what direction does an applied force move an object? A. in the opposite direction of the force B. independent of the force C. perpendicular to the force D. in the same direction as the force

What are elements that bond with actinium

How is the way a mixture is combined different from how a compound is combined?

Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?

Write a sentence that uses the words "mass extinction" correctly

Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals

Concerning the 10.0 mL of 0.50 M NaCl diluted to 100 mL of solution: When a solution is diluted, does the dilution change the number of grams dissolved? yes no