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Lilit [14]
4 years ago
6

The frequency of a signal is found to be 6389 with an uncertainty of 436 Hz. To the correct number of significant digits, it sho

uld be reported as:
Chemistry
1 answer:
vlabodo [156]4 years ago
8 0

Answer:

<u><em>i hope it work</em></u>

Explanation:

as

accurate reading range = reading ± uncertainty

so you have to say about accurate reading that its,lies in range

=(6389-436) →(6389+436)

=5953→6825

and  the correct number of significant would be 3

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Can someone please help with this I need the answers for the three boxes
denis23 [38]

Answer:

Type: M

Name: Dixytrogen Pentasulfide

Molar Mass:

X*2 = Number * 2 = Number

S*5=32.066*5=160.33

Number + 160.33 = Molar Mass (g/mol).

(The mass for Xytrogen is not present).

Explanation:

Assuming Xytrogen is a non-metal and bonding it with sulfur, another non-metal would make it covalent or molecular.  

The name is from the amount of Xs (being two [Di]) and the amount of Ss (being five [Penta]).

The molar mass is explained above.  You need to multiply the mass of each element by the number of elements present in the compound.  The mass for Xytrogen is not present (as it is a made up element) so I left instructions how to do it once given the mass instruction.

Hope this helps.

6 0
3 years ago
What is the difference between ionic and covalent bonds? Give an example of a each type<br>​
Norma-Jean [14]

Answer:

Ionic bonds are opposite, whereas Covalent bonds are opposite.

Explanation:

Two opposite ions attract each other and form the ionic bond. Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and othercovalent bonds.

Examples:

Sodium Chloride and Sodium Fluoride are examples of <em>Ionic</em><em> </em><em>bonds</em><em>.</em>

<u>and</u>

Water and Carbon Dioxide are examples of <em>Covalent</em><em> </em><em>bonds</em><em>.</em><em> </em>

4 0
4 years ago
BaO2 is a peroxide. Why?
melamori03 [73]

Answer:

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7 0
3 years ago
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What mass, in grams, of chlorine gas (Cl2) is contained in a 12.5-liter tank at 27.0 degrees Celsius and 2.85 atmospheres? Show
nata0808 [166]
PV = nRT
P is pressure, V is volume, n is number of moles, R is the gas constant, T is temperature in K

(2.85 atm)(12.5 L) = (n)(.08206)(27 C + 273)

n = 1.45 moles x 35.45 grams / mol Cl2 = 51.3 grams


8 0
3 years ago
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gtnhenbr [62]
P2O5 
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4 0
3 years ago
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