A measure of the degree to which results of an experiment "check” * precision
accuracy
variable
O theory
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Identify the types of lab equipment shown below

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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