3 years ago

Name two metals which have a coating of another metal.

Chemistry

1 answer:

quester [9]3 years ago

7 0

Answer:

Chromium is electroplated on other metals. 2. Gold is electroplated on other cheap metals.

You might be interested in

How many electrons are in their outer shell?

quester [9]

Is there an attachment because it depends on the element.

5 0

3 years ago

4NH3 + 5O2-> 4NO + 6H2O<br><br> How many molesof NO are formed if 824g of NH3 react ?

ZanzabumX [31]

824 g NH3 (1 mol/17 g NH3) (4 mol NO/4mol NH3)

48.47 moles NO

4 0

2 years ago

Nvm i got the answer

balandron [24]

Good luck with your assignment :)

4 0

2 years ago

What is the half-life of a first-order reaction if it takes 4.4 x 102 seconds for the concentration to decrease from 0.50 M to 0

elena55 [62]

Answer: The half-life of a first-order reaction is, $3.3\times 10^2s$

Explanation:

All the radioactive reactions follows first order kinetics.

Rate law expression for first order kinetics is given by the equation:

$k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}$

where,

k = rate constant = ?

t = time taken = 440 s

$[A_o]$ = initial amount of the reactant = 0.50 M

[A] = left amount = 0.20 M

Putting values in above equation, we get:

$k=\frac{2.303}{440s}\log\frac{0.50}{0.20}$

$k=2.083\times 10^{-3}s^{-1}$

The equation used to calculate half life for first order kinetics:

$t_{1/2}=\frac{0.693}{k}$

Putting values in this equation, we get:

$t_{1/2}=\frac{0.693}{2.083\times 10^{-3}s^{-1}}=332.69s=3.3\times 10^2s$

Therefore, the half-life of a first-order reaction is, $3.3\times 10^2s$

4 0

2 years ago

What are the properties of the aluminum in the can

arlik [135]

Solid, malleable, and can be crushed

3 0

3 years ago

Name two metals which have a coating of another metal.​

Name two metals which have a coating of another metal.