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gtnhenbr [62]
3 years ago
11

What career field/job would utilize ppm units

Chemistry
1 answer:
Ierofanga [76]3 years ago
4 0
Jobs in analytical chem tht is because it’s parts per million and when calculating the amount of an element in a mole
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the water in a tea pot is heated on a stove top. The temperature of the water increases. Is this an endothermic or exothermic pr
marusya05 [52]
It is an endothermic process
5 0
3 years ago
Organisms are classified into domains and other groups by similar characteristics. There are three domains: Archaea, Bacteria, a
Anton [14]

Answer:

presence or absence of a nucleus

Explanation:

These classification of organisms into broad domains is based on the present or absence of nucleus in the cell of an organism.

The archaea are prokaryotes and they lack a distinct cellular nuclei.

Bacteria are similar to archaea but bacteria have only one RNA polymerase

Eukarya have true nucleus and membrane bound organelles .

So, the variations in their cells are used to classify organisms into the broad categories

8 0
3 years ago
How many ml of a 0.50m solution of hno3 solution are needed to make 500 ml of 0.15m hno3
Anna71 [15]

Answer:

150.0 mL.

Explanation:

  • It is known that the no. of millimoles of HNO₃ before dilution = the no. of millimoles of HNO₃ after dilution.

∵ (MV) before dilution = (MV) after dilution.

<em>∴ V before dilution = (MV) after dilution / M before dilution</em> = (0.15 M)(500.0 mL)/(0.50 M) = <em>150.0 mL.</em>

7 0
3 years ago
What does this equation, 2 C(s) + O 2(g) ® 2 CO(g), tell us?
Zanzabum

Answer:

D. All of these.

Explanation:

For an equation to be balanced the number of atoms of each kind in the reactants and the products should be the same.

Then from this equation, CO  is a product.

Last, two carbon atoms undergo reaction with the oxygen molecule for complete reaction to occur. Each atom combines with one oxygen atom.

7 0
3 years ago
Read 2 more answers
A certain element has 52 protons, 52 electrons, and 76 neutrons. its atomic mass is _____. 52 76 128 104
kifflom [539]
Pretty sure it is 128 hope this helps you :D
5 0
3 years ago
Read 2 more answers
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