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Annette [7]
3 years ago
15

Important question, please answer(worth 64 points.)

Chemistry
2 answers:
Blababa [14]3 years ago
4 0

Answer:

Is is talking about h20 water?

Explanation:

Readme [11.4K]3 years ago
3 0

Answer:

2C8H18 + 25O2 ----> 16CO2 + 18H2O

Explanation:

Basically you can first list all your elements from your products and reactants:

C       8 x 2                         C             1 x 16

H      18 x 2                        H             2 x 18

O       2 x 25                      O             (2 x 18) + (2 x 16)

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olasank [31]

The volume (in mL) of methylergonovine the nurse should draw up in the syringeis is 0.25 mL

<h3>What is density? </h3>

The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as

Density = mass / volume

With the concept of density, we can obtain the volume of methylergonovine. Details below

<h3>How to determine the volume </h3>

The following data were obtained from the question:

  • Mass of methylergonovine = 0.2 mg
  • Density of methylergonovine = 0.8 mg/mL
  • Volume of methylergonovine =?

Density = mass / volume

Cross multiply

Density × volume = mass

Divide both sides by density

Volume = mass / density

Volume = 0.2 / 0.8

Volume of methylergonovine = 0.25 mL

Learn more about density:

brainly.com/question/952755

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8 0
2 years ago
What's a beaker with a hole in it where a tube can be inserted to be connected to another beaker called?
Darya [45]

Answer:

its in g,oogle

Explanation:

8 0
3 years ago
the atomic masses of 63 cu (69.17 percent) and 65 cu (30.83 percent) are 62.94 and 64.93 amu, respectively. calculate the averag
docker41 [41]

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The average atomic mass of copper is 63.55 amu.

Explanation:

hope this help

7 0
2 years ago
Which form of co2 transport accounts for the greatest amount of co2 transported in blood?
ra1l [238]
The greatest amount of CO2 transported in blood is in the form of bicarbonate in plasma. Most of the carbon dioxide is converted into bicarbonate with the help of carbonic anhydrase which is an enzyme. This enzyme converts carborn dioxide and water into bicarbonate and hydrogen ions. The bicarbonate in plasma accounts for about 70% of CO2.
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4 years ago
A solution is created by dissolving 11.0 grams of ammonium chloride in enough water to make 235 mL of solution. How many moles o
Amanda [17]

Answer:

The correct answer is 0.206 moles

Explanation:

According to the given scenario, the calculation of the number of moles of ammonium chloride is available in the resulting solution is given below:

Given that

Amount of NH_4Cl is 11.0 grams

And, the volume is 235 mL

Now the molar mass of NH_4Cl is 53.49g/mol

So, the number of moles presented is

= 11.0 ÷ 53.49

= 0.206 moles

hence, the number of moles of ammonium chloride are available in the resulting solution is 0.206 moles

7 0
3 years ago
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