3 years ago

How can the melting point and boiling point of a substance be used to identify it?

1 answer:

4 0

Every substance has its own melting point therefore by finding the melting point we can be able to identify the substance

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How is radiation different from conduction?

steposvetlana [31]

Answer:

<u>Radiation is the transfer of energy by waves, and conduction is the transfer of heat through contact with air.</u>

Explanation:

Conduction is the transfer of thermal energy through direct contact. Radiation is the transfer of thermal energy through thermal emission.

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3 years ago

Marissa blows up balloons for a party. She decides how big or small to make each balloon. Why does the air she blows into each b

Oxana [17]

Air is it gas so it fills its container, the balloon, completely.

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3 years ago

If a helium filled ballon has a volume of 3.4l at 25°c and 1.18atm., what is its volume at STP?

vladimir2022 [97]

Answer:

3.711 L

Explanation:

The formula you need to use is the following:

$\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\$

3.4L / 298 K = V2 / 273 K

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2 years ago

PLSSS HELP ASAPP ITS 200 points and I give brainlist

Ad libitum [116K]

1. should be A

Explanation:

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3 years ago

Read 2 more answers

Hydrogen iodide is not produced by the same method is for hydrogen chloride why with reaction

Masja [62]

Using Phosphoric acid will work perfectly for producing Hydrogen halides because its not an Oxidizing agent. ...

Using an ionic chloride and Phosphoric acid

H3PO4 + NaCl ==> HCl + NaH2PO4

H3PO4 + NaI ==> HI + NaH2PO4

H2SO4 + NaCl ==> HCl + NaHSO4

This method(Using H2So4) will work for all hydrogen hydrogen halide except Hydrogen Iodide and Hydrogen Bromide.

The Sulphuric acid won't be useful for producing Hydrogen Iodide because its an OXIDIZING AGENT. Whist producing the Hydrogen Iodide... Some of the Iodide ions are oxidized to Iodine.

2I-² === I2 + 2e-

5 0

2 years ago