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Afina-wow [57]
3 years ago
7

If the statement is true, select True. If it is false, select False.

Chemistry
1 answer:
Marianna [84]3 years ago
7 0

This statement is true

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Why is copper a popular mineral? Is it in danger of depletion? Use details to support your answer.
laila [671]

Answer:

yes it is a danger.Copper doesn't break down in the environment, leading to its accumulation in plants and animals. Absorption of some copper into the body is essential for human health. Acute industrial exposure to copper fumes, dusts or mists can result in chronic copper poisoning.Copper is a mineral and an element essential to our everyday lives. It is a major industrial metal because of its high ductility, malleability, thermal and electrical conductivity and resistance to corrosion. It is an essential nutrient in our daily diet.

7 0
3 years ago
Which process contributes to the formation of tornados?
DIA [1.3K]

Answer:

Warm air rises, resulting in a decrease air pressure.

Explanation:

Tornado is the rapid and violent rotation of column of air which move from the thunderstorm to the ground.

It is formed when there is collision between warm and cold air. The cold air which is more sense than the warm air is pushed over the warm air which result in thunderstorms. The warm air then rises which result in decrease air pressure causing an updraft. The updraft then begin to rotate as there are variations in wind speeds and directions.

5 0
3 years ago
Read 2 more answers
Symbol for the magnesium oxide reactants<br>​
Stella [2.4K]

Answer:

MgO

Explanation:

Magnesium oxide is formed up of the ions Mg2+ and O2

8 0
3 years ago
Read 2 more answers
Which laws can be combined to form the ideal gas law?
slava [35]

Option 3- Avogadro's, Charles's and Boyle's


6 0
3 years ago
A balloon contains 5 L of oxygen at a pressure of 90 kPa. How much oxygen will the balloon contain if the pressure is lowered to
laila [671]
Answer is: volume will be 6,7 L.
Boyle's Law: the pressure volume law - <span> volume of a given amount of gas held  varies inversely with the applied pressure when the temperature and mass are constant.
p</span>₁V₁ = p₂V₂.
90 kPa · 5 L = 67 kPa · V₂.
V₂ = 90 kPa · 5 L / 67 kPa.
V₂ = 6,7 L, but same amount of oxygen.


7 0
3 years ago
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