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lianna [129]
3 years ago
11

I need help please Which option is chemical change?

Chemistry
1 answer:
MrRa [10]3 years ago
8 0

Answer:

Getting coated with tarnish

Explanation:

Silver, the original substance is combining with a new substance tarnish to make a whole new chemical.

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Which set of statements best explains the relationship between the parts of the respiratory system?
Ivanshal [37]

Answer:

The description of that same scenario is listed mostly in the explanation portion following.  

Explanation:

This same respiratory system involves several lungs, as well as the systemic circulation concerning this same human heart, which operates in conjunction to pick up more oxygen as well as expel CO2 from the body.

  • These same lungs encourage O2 to pass both through alveoli via the blood capillaries surrounding off the front of the alveoli, that are otherwise interconnected to the arterial circulation, which carries O2 rich blood something to human heart through which O2 rich blood was indeed transported to many other blood vessels via the artery
  • Consequently, those system works together to promote the transmission of gas throughout tissues and organs and also to ensure sustainable the tissue functions required during metabolic functions.
3 0
3 years ago
Which statement best describes the process of making a solution by diluting a stock solution?
Bas_tet [7]
Add more solvent  to decrease the concentration.
3 0
3 years ago
Read 2 more answers
2 SO3 (g) + Heat <-----> 2 SO2 (g) + O2 (g)
Step2247 [10]

Answer:

The concentration of SO₂ will decreases

Explanation:

As you can see in the reaction

2 moles of gas ⇆ 3 moles of gas

Based on Le Châtelier's principle, a change doing in a system will produce that the system reacts in order to counteract the change made.

If the pressure is increased, the system will shift to the left in order to produce less moles of gas and decrease, thus, the pressure.

As the system shift to the left, the concentration of SO₂ will decreases

7 0
3 years ago
Which type of formula represents the simplest whole-number ratio of atoms of the elements in a compound?
sleet_krkn [62]
The empirical formula represents the simplest whole number shows the simplest whole number ratio of atoms in a compound.  An example of this is the empirical formula for glucose (C₆H₁₂O₆) is C₃H₆O₃.  

I hope this helps.  Let me know if anything is unclear.
5 0
3 years ago
Please help I’m marking a branliest answer ☹️☹️☹️☹️☹️☹️
Doss [256]
The answer would be C
7 0
3 years ago
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