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denpristay [2]
2 years ago
11

Which regulates the flow of electrical current to the filament of the x-ray tube? a. high-voltage circuit

Chemistry
1 answer:
timurjin [86]2 years ago
8 0
B) low-voltage circuit
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no it's not

Explanation:

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H2 +O2=2H2O

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3 years ago
Calculate the formula for the following hydrate composed of 76.9% CaSO3 and 23.1%H2O
artcher [175]
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PLEASE HELP! WILL DO BRAINLIEST! What do scientists call all of the compounds that contain carbon and are found in living things
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organic compounds contained in all living things

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Calculate the mass, in grams, of Avogadro's number of fluorine atoms. Enter your answer in the provided box. I g/mol
juin [17]

Answer:

Every substance, whether an element or a compound that contains Avogadro's number, is said to form a mole of it. Therefore for the fluorine atoms that form the Avogadro number we say that we have one mole of fluorine atoms and this weighs 19 g, so 19 g/mol

Explanation:

You can search the F in the Periodic Table where you have the molar mass, 19 g/mol but if you don't have a Periodic Table you can calculate like this:

1 atom of F weighs 19 Da (unified atomic mass unit) and 1 Da is 1,661 x10*-24 g, so try to apply a rule of three, twice.

1 Da ........... 1,661x10*-24 g

19 Da .......... x

x= (19 Da . 1,661x10*-24 g ) / 1 Da = 3,1559x10*-23 g

1 atom F ..............  3,1559x10*-23 g

6,022x10*23 atoms F ............. x

X= (6,022x10*23 atoms F . 3,1559x10*-23 g) / 1 atom F = 19.0048 g

3 0
3 years ago
6. What will happen to the gravitational force between stars as the universe continues to expand?
Julli [10]
<h2><em>Nothing will happen to them</em></h2>

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please mark brainliest

8 0
2 years ago
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