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Ulleksa [173]
3 years ago
13

Which type of heat transfer’s keyword is Waves?

Chemistry
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

Radiation

Explanation:

<u>Radiation</u> travels in energy <u>waves</u>

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The boiling point of liquid nitrogen is 77 kelvin. It is observed that ice forms at the opening of a container of liquid nitroge
icang [17]

Answer:

The answer is "The First choice".

Explanation:

The whole question can be found in the file attached.

The water vapor inside the air freezes thru the entrance of its nitrogen. This is because liquid nitrogen has a very low temperature and seems to be sufficiently cold to condensed and freeze the steam of water. At air pressure, it has a boiling temperature of -196°C. Freezing the skin producing freeze or cold burns can be associated with direct contact.

7 0
3 years ago
If a material mixes readily with water it is identified as
Rama09 [41]
If a material mixes readily with water it is describe as HYDROPHILIC. Hydrophilic substances are water loving molecules, there reaction with water is favorable in term of thermodynamics. This type of substance are usually charged and often have ability to get involve in hydrogen bonding. 
3 0
3 years ago
You lab measurements are 23.29, 23.1g, and 23.2g for each trial. Which of the following are your measurements?​
STatiana [176]

Answer:

Precise and maybe accurate.

Explanation:

To know if it is accurate, determine whether or not your measurements are similar to the correct measurements

3 0
3 years ago
Given 20.0 g of (NH4)3 PO3 how many moles is this? How many formula units is it? How many hydrogen atoms are present?
Setler79 [48]

Answer:

no of moles = (mass) ÷ molar mass

you get the molar mass from the periodic table

n = 20.0g ÷ ( 149.09 g/mol )

= 0.134 mol

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= 8.07×10^22 units

number of hydrogen atoms in (NH4)3 PO3 = 12 × number of formula units

= 9.68×10^23 hydrogen atoms

8 0
2 years ago
2, classify the following molecules as polar or non polar.
Vitek1552 [10]

A. CH4= NON POLAR

B. CH3cl= POLAR

C. CO2= NON POLAR

D.  H2O2= POLAR

E. BCl3= NON POLAR

F. H2S​= SLIGHTLY POLAR

7 0
3 years ago
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