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stellarik [79]
3 years ago
12

Name 3 uses for mercury

Chemistry
2 answers:
notka56 [123]3 years ago
8 0

Answer:

Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lamps and other devices, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor ...

Explanation:

i know this will help because i got this right

Allushta [10]3 years ago
6 0

hydrargyrum , hg swiftplanet, quicksliver

Explanation:

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<span>-1602 kj

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Which list of elements consists of a metal, a metalloid, and a nonmetal?
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C. Sn (tin) is a metal, Si (silicon) is a metalloid, and C (carbon) is a nonmetal
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Gaseous ammonia chemically reacts with oxygen O2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of am
mel-nik [20]

Answer:

1.7 moles of ammonia, NH₃.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

4NH₃ + 5O₂ —> 4NO + 6H₂O

From the balanced equation above,

4 moles of NH₃ reacted to produce 4 moles of NO.

Finally, we shall determine the number of mole of ammonia, NH₃, needed to produce 1.7 moles of nitrogen monoxide, NO. This can be obtained as follow:

From the balanced equation above,

4 moles of NH₃ reacted to produce 4 moles of NO.

Therefore, 1.7 moles of NH₃ will also react to produce 1.7 moles of NO.

Thus, 1.7 moles of ammonia, NH₃, is required.

5 0
3 years ago
What mass of Hg will occupy a volume of 75.0 mL?
k0ka [10]
75.0 mL in liters:

75.0 / 1000 => 0.075 L

1 mole -------------------- 22.4 L ( at STP)
( moles Hg) ------------- 0.075 L

moles Hg = 0.075 x 1 / 22.4

moles = 0.075 / 22.4

= 0.00334 moles of Hg

Hg => 200.59 u

1 mole Hg ----------------- 200.59 g
<span>0.00334 moles Hg ----- ( mass Hg )
</span>
mass Hg = 200.59 x 0.00334 / 1

mass Hg = 0.6699 / 1

= 0.6699 g of Hg




7 0
3 years ago
Can anyone help me with this since it is a quiz and I am really bad at chemistry!!
lord [1]

Answer:

Down below <3

Explanation:

1. <u> 1 </u> N_{2} + <u> 3 </u> H_{2} ---> <u> 2 </u> NH_{3}

2. <u> 2 </u> KClO_{3} ---> <u> 2 </u> KCl + <u> 3 </u> O_{2}

3. <u> 1 </u> Na_{3}PO_{4} + <u> 3 </u> HCl ---> <u>_ 3_</u> NaCl + <u> 1 </u> H_{3}PO_{4}

4. <u> 1 </u> C_{2}H_{6}O + <u> 3 </u> O_{2} ---> <u> 2 </u> CO_{2} + <u> 3 </u> H_{2}O

5 0
3 years ago
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