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anygoal [31]
2 years ago
12

Plz help it is due rn, help ASAP

Chemistry
2 answers:
horrorfan [7]2 years ago
8 0

Answer:

A

Explanation:

oee [108]2 years ago
4 0

Answer:

A

Explanation:

The car is traveling at the constant speed of 70km/hr. Then the speed decreases from 70 to 40. The car stays at 40 km/hr.

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BartSMP [9]
1. Physical matter
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3 years ago
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What would be the vital capacity be for a man that has a tidal volume of 500mL, a residual volume of 1100 mL, an expiratory rese
dezoksy [38]

The vital capacity will be 4600ml.

<h3>What is vital capacity?</h3>

The highest amount of air a person can inhale following their maximal exhalation is known as their vital capacity. It is equivalent to the total of the inspiratory, tidal, and expiratory reserve volumes. It roughly corresponds to Forced Vital Capacity. A wet or conventional spirometer can assess a person's vital capacity.

Normal people have a 3 to 5-liter vital capacity.

It enables simultaneous inhalation of the greatest possible volume of clean air and exhalation of the greatest possible volume of stale air. So, by increasing gaseous exchange between the body's various tissues, it improves the amount of energy available for bodily function.

VC = TV₊IRV₊ERV

where,

VC = Vital capacity

TV = Tidal volume

IRV = inspiratory reserve volume

ERV = expiratory reserve volume

VC = 500 ₊ 3000 ₊ 1100

VC = 4600ml

Therefore, the vital capacity will be 4600ml.

To know more about  vital capacity refer to: brainly.com/question/14877276

#SPJ4

3 0
2 years ago
Write the chemical symbol and the charge for the ion with 7 protons and 10 electrons.
mariarad [96]
It’s Nitrogen (N) with a -3 charge
5 0
3 years ago
In the chemical formula 2so2, how many total atoms of sulfur (s) are there? 1 2 4
babunello [35]
Sulfur has the coefficient of 2, and nothing else. This indicates Sulfur has 2 atoms. 


<span>Oxygen on the other hand, has a subscript of 2, as well as the coefficient of 2. Multiplying those, and you see Oxygen has 4 atoms. 
</span>
So your answer is 2

Also remember there is a 2 in front of S meaning there are 2 Sulfurs. 
<span>If it was S02 it would be 1 Sulfur as there is no number in front of sulfer. </span>

<span>Remember the number in front of a element, represents how many atoms there are :)</span>
6 0
3 years ago
Bronze is an example of which of the following:<br><br> element<br> atom<br> solution<br> solvent
Brut [27]
It is a solution, because it's the alloy of tin and copper 
8 0
3 years ago
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