In the reaction:

NH3 + H2O ↔ NH4 + OH-

The two Brönsted acids are

A) NH3 and H2O

B) NH3 and OH-

C) NH4 + and H2O

D) NH4 + and OH-

Check all that apply. a. Cathode rays have mass. b. There are subatomic size particles in an atom. c. In the atom, the particles of the cathode rays are embedded in a diffuse cloud of positive charge. d.

As transformações estão presente em nosso cotidiano, elas nunca param de acontecer, na sua maioria invisível a olho nu. Quais critérios é preciso observar para identificar se ocorreu transformação?

Which best explains why water is able to "stick" to the side of glass?

A cup of black coffee has a [h+]=1*10-5. what is the ph of this coffee? is this coffee an acidic or a basic solution?

Why do scientists communicate their results in written reports? a. So other scientists will argue b. So other scientists can repeat their experiments c. Because they like to write d. To make scientific models

All of the following are diatomic molecules except? a) H b) Br c) CI d) S

How is radiation related to electromagnetic waves and thermal energy?

For the reaction a+2b→c under a given set of conditions, the initial rate is 0.180 m/s. part a what is δ[b]/δt under the same conditions?

What is the number of oxygen atoms in the ring portion of the haworth structure of glucose?

Explain what it means by a balanced chemical equation