3 years ago

What is the identity of the element that has 19 protons and 22 neutrons?

Chemistry

1 answer:

Degger [83]3 years ago

3 0

Answer:

A titanium ion

You might be interested in

The standard emf for the cell using the overall cell reaction below is +2.20 V:

ANEK [815]

Answer:

emf generated by cell is 2.32 V

Explanation:

Oxidation: $2Al-6e^{-}\rightarrow 2Al^{3+}$

Reduction: $3I_{2}+6e^{-}\rightarrow 6I^{-}$

---------------------------------------------------------------------------------

Overall: $2Al+3I_{2}\rightarrow 2Al^{3+}+6I^{-}$

Nernst equation for this cell reaction at $25^{0}\textrm{C}$ -

$E_{cell}=E_{cell}^{0}-\frac{0.059}{n}log{[Al^{3+}]^{2}[I^{-}]^{6}}$

where n is number of electrons exchanged during cell reaction, $E_{cell}^{0}$ is standard cell emf , $E_{cell}$ is cell emf , $[Al^{3+}]$ is concentration of $Al^{3+}$ and $[Cl^{-}]$ is concentration of $Cl^{-}$

Plug in all the given values in the above equation -

$E_{cell}=2.20-\frac{0.059}{6}log[(4.5\times 10^{-3})^{2}\times (0.15)^{6}]V$

So, $E_{cell}=2.32V$

3 0

3 years ago

Which of these is an example of a physical change ?

Gre4nikov [31]

It's 1. Melting a substance. The rest are chemical changes

8 0

3 years ago

Two important ways that energy is transported in the world around us is through

Ann [662]

Explanation:

The two ways that energy can be transferred are by doing work and by heat transfer.

5 0

3 years ago

Which describes any compound that has at least one element from group 17?

Contact [7]

The answer is HALIDE.

6 0

3 years ago

Soil that are light in color have a great amount of humus in<br> them. True or False

GaryK [48]

Answer:

please the answer Is false

6 0

2 years ago