1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rewona [7]
3 years ago
8

C. Why do chemists routinely test existing chemicals?

Chemistry
1 answer:
frozen [14]3 years ago
8 0

Answer :

The chemists such as analytical chemists determine the structure, composition, and nature of substances by examining and identifying their various elements or compounds. These chemists are crucial to the pharmaceutical industry because pharmaceutical companies need to know the identity of compounds that they hope to turn into drugs.

You might be interested in
The south end of Earth's axis is tilted toward the Sun in?
DochEvi [55]

Answer:

December

Explanation:

Southern Hemisphere experiences winter in July, therefore it experiences Summer in December.

3 0
2 years ago
Light bending as it passes through a rain drop is an example of Transmission Diffraction Refraction Reflection
Yuliya22 [10]
The answer would be the third one listed, Refraction
4 0
3 years ago
What volume of carbon dioxide is produced when 0.489 mol of calcium carbonate reacts completely according to the following react
Vilka [71]

Answer:

11.0L of carbon dioxide is produced

Explanation:

Balanced equation: CaCO_{3}(s)\rightarrow CaO(s)+CO_{2}(g)

According to balanced equation, 1 mol of CaCO_{3} produces 1 mol of CO_{2}

So, 0.489 mol of CaCO_{3} produces 0.489 mol of CO_{2}

Let's assume CO_{2} behaves ideally.

So, P_{CO_{2}}V_{CO_{2}}=n_{CO_{2}}RT

where P is pressure, V is volume , n is number of moles, R is gas constant and T is temperature in kelvin

Plug-in all the values in the above equation-

(1atm)\times V_{CO_{2}}=(0.489mol)\times (0.0821L.atm.mol^{-1}.K^{-1})\times (273K)

or, V_{CO_{2}}=11.0L

So, 11.0L of carbon dioxide is produced

4 0
3 years ago
You’re beautiful *heart*
Georgia [21]
I’m not your just blind. I’m sorry
8 0
3 years ago
Compare the root mean square speeds of O2 and UF6 at 65 degree Celsius
gayaneshka [121]
<h3>Answer:</h3>

The root mean square speeds of O₂ and UF₆ is 513m/s and 155 m/s respectively.

<h3>Solution and Explanation:</h3>
  • To find how fast molecules or particles of gases move at a particular temperature, the root  mean square speed is calculated.
  • Root mean square speed of a gas is calculated by using the formula;

       Root mean square=\sqrt{ \frac{3RT}{M}

       Where R is the molar gas constant, T is the temperature and M is the molar mass of gas in Kg.

<h3>Step 1: Root mean square speed from O₂</h3>

Molar mass of Oxygen is 32.0 g/mol or 0.032 kg/mol

Temperature = 65 degrees Celsius or 338 K

Molar gas constant = 8.3145 J/k.mol

Root mean square speed = \sqrt\frac{(3)(8.3145)(338K)}{0.032}

                                        = 513.289 m/s

<h3>Step 2: Root mean square speed of UF₆   </h3>

The molar mass of UF₆ is 352 g/mol or 0.352 kg/mol        

Root mean square speed = \sqrt\frac{(3)(8.3145)(338K)}{0.352}

                                                 = 154.762m/s

Therefore; the root mean square speeds of O₂ and UF₆ is 513m/s and 155 m/s respectively.

7 0
3 years ago
Other questions:
  • Amanda found two snakes slithering in her garden. The first snake way only a baby,and was just 3/4 of an inch long. The second s
    12·1 answer
  • What city is the capital of nebraska
    11·2 answers
  • 1. What two quantities must be known to calculate the density of a sample of matter?
    11·2 answers
  • Why is the state of matter a physical<br> property of matter?
    15·1 answer
  • If a negatively charged object is brought near a neutrally charged sphere, what will happen? The electrons will move toward the
    8·2 answers
  • During condensation, liquid water is heated by the Sun and then rises into the air as water vapor.
    9·2 answers
  • Why are scientists interested in exploring Mars? A. possible existence of sulfur vents B. possibility of mining minerals C. poss
    9·2 answers
  • Is a chair an example of matter
    6·2 answers
  • What would be the best way to measure the volume of a small ?​
    10·1 answer
  • Oxygen is a product of the decomposition of mercury(II) oxide as shown below.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!