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yarga [219]
3 years ago
14

And D. It’s long stems Sorry couldn’t fit D in the picture

Chemistry
1 answer:
Karolina [17]3 years ago
8 0

Answer:

I think the correct answer is a

Explanation:

that's the only part that could really be used to protect itself,

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2.00 moles of an ideal gas was found to occupy a volume of 17.4L at a pressure of 3.00 atm and at a temperature of 45 C. Calulat
lidiya [134]

Answer:

0.082 atm L mol^{-1} K^{-1}

Explanation:

The pressure, the volume and the temperature of an ideal gas are related to each other by the equation of state:

pV=nRT

where

p is the pressure of the gas

V is the volume of the gas

n is the number of moles

R is the gas constant

T is the absolute temperature

For the gas in this problem:

n = 2.00 mol is the number of moles

V = 17.4 L is the gas volume

p = 3.00 atm is the gas pressure

T=45C+273=318 K is the absolute temperature

Solving for R, we find the gas constant:

R=\frac{pV}{nT}=\frac{(3.00)(17.4)}{(2.00)(318)}=0.082 atm L mol^{-1} K^{-1}

5 0
3 years ago
What is the empirical formula
lord [1]

A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

5 0
3 years ago
What are the benefits of scientists using the metric system worldwide?select all that apply
denis-greek [22]

There are several scales to determine the weight of material. The chose of the weight scale depends upon the size of the material. Like if we have to measure the molecular or atomic weight of  a molecule or atom we use gm. Like that for the bigger molecules like proteins the weight of the molecule is expressed by different scale due to its big size. Like that for big material like iron rods etc we generally use kilograms or ton. There are two types of measuring units one is C.G.S. and another is S.I. The S.I. units are more acceptable worldwide than that the C.G.S. units as the digit comes in SI units are easily handable than that of CGS.

Thus metric is used to determine a large weight of compounds which is a SI unit and handable.    

4 0
3 years ago
Los procesos químicos que permiten reciclar el carbono entre plantas y animales son:​
tigry1 [53]

Answer:

En un proceso llamado respiración, los animales y las plantas toman oxígeno del aire y devuelven dióxido de carbono.

Explanation:

Tuve que usar un traductor para esto, lo siento si no lo entiendes completamente.

7 0
3 years ago
What is the oxidation state for the oxygen atom in na 2 ​ o 2 ​ ?
elixir [45]
Na_{2}O_{2}

Na in compounds has oxidation number +1 only.

So,  Na_{2}^{+1}O_{2}^{x}

2*(+1)+2x=0, x=-1.

Oxidation number oxygen in Na_{2}O_{2} is - 1.
4 0
2 years ago
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