Ask question

Ask question

All categories

Natali5045456 [20]

3 years ago

15

When silver coins are found in ancient shipwrecks,they are coated with a black crust. What question could you ask to help you de

cide whether the silver underwent a chemical change or a physical change? Explain.

1 answer:

leonid [27]3 years ago

8 0

It went under a physical change because it (1) changed color. (2) changed form.

You might be interested in

does anyone have any advice for breaking up with your gf because you both lost feelings and after months you have been trying to

inn [45]

Answer:

advise for to break up with her

Explanation:

4 0

3 years ago

What happens to the freezing temperature of a solvent when a

Ostrovityanka [42]

Answer:it decreases

Explanation:

4 0

3 years ago

Write the balanced chemical equation for the reaction of glucose (C6,H12,O6) with oxygen gas to produce carbon dioxide gas

Fittoniya [83]

Answer:

C6H12O6+6O2=6Co2+6H2o

4 0

3 years ago

What does the atomic number of an element refer to on the periodic table?

jekas [21]

The elements are listed in order of increasing the atomic number. Its the number that is the number of protons in the nucleus of an atom.

6 0

3 years ago

Read 2 more answers

___ Au₂S₃ + ___ H₂ → ___ Au + ___ H₂S

Natalija [7]

Answer:

2Au₂S₃ + 6H₂ → 4Au + 6H₂S

Explanation:

Balancing:

2Au₂S₃ + 6H₂ → 4Au + 6H₂S

6 0

3 years ago