Which type of reaction has an element and a compound as both the reactasnt and the product?

A sample of nitric acid contains both H3O ions and NO3 ions. This sample has a pH value of 1. What is the color of methyl orange after it is added to this sample?

Whats the name of the Changes in matter which require heat

What is the solubility of m (oh) 2 in a 0.202 m solution of m (no3) 2? ksp 4.45*10^-12?

The reaction A (g) ⇌ 2 B (g) A (g) ⇌ 2 B (g) has an equilibrium constant of K = 0.010 K = 0.010. What is the equilibrium constant for the reaction B (g) ⇌ 1 2 A (g) ?

When magnesium (Mg) reacts with chlorine (Cl) to form MgCl2, each atom of magnesium (gains, loses) (1,2,3,4) electron (s). As a result, each magnesium ion has a (1+,2+.3+,4+,1-,2-,3-.4-) charge.

A first order reaction has a rate constant of 0.816 at 25 oC. Given that the activation energy is 22.7 kJ/mol, calculate the rate constant at 34 oC. (enter answer to 3 decimal places)

Part b select the ester that is formed when propanoic acid reacts with isopropyl alcohol in the presence of heat and an acid catalyst.

Do metals form anions or cations

Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? a. Nitrogen b. Oxygen c. Argon

You just found a metallic object in a creek bed. From the following tests and Figure 2, determine what it is. 96.5g will balance the object. Its mass is g. The object displaces 5 mL of water. Its volume is cm 3. The density of the object is g/cm 3.