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A radio opaque substance is something that resists the passage of X-Rays, or other radiation. It is often injected into the heart for a coronary angiogram, into the brain for a cerebral angiogram, or into the cerebralspinal fluid for a myelogram. It makes things stand out on an X-Ray or fluoroscope, making it easier to see internal structures and conditions. It can also be injected systemically, to enhance the constrast of an ordinary X-Ray or CT scan.
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Is the following true or false temperature is a measure of how hot or cold the substance is?
False. It is a measure of how much enegry a substance has.
Do an opaque object reflects the light that it does not absorb?
true
True or false temperature is a measure of how hot or cold a substance is?
How hot or cold a substance is the temperature, so a thermometer will measure it.
When a substance loses or absorbs energy its temperature can change true or false?
Very true.
What is true about microwaves?
they have a longer wavelength than radio waves.
Is the following question true or false Phoenician glass was opaque?
True.
Is the following true or false temperature is a measure of how hot or cold the substance is?
False. It is a measure of how much enegry a substance has.
Which of the following is true about the Andrews Sisters?
They were dubbed the Sweethearts of the Armed Forces Radio Service
Does an opaque object reflect the light it does not absorb?
true
Do an opaque object reflects the light that it does not absorb?
true
True or False- The freezing point of a substance is equal to the melting point of a substance?
It is true.
Is radio a true movie?
no it is not a true move
During a chemical change the form of a substance is altered but not its identity true or false?
The statement is false: A chemical change of a substance is defined as a change in which the substance is not the same substance after the change as it was before.
Is it true that radio waves carry information from a broadcasting station t your radio or television?
Is it true that radio waves carry information from a broadcasting station to your radio or television
True or falsecompounds are the simplest type of substance and cannot broken down into any other substance?
T=It is true that compounds is a type of substance. This substance cannot be broken down.
Is it true that thermal energy always flows from a cooler substance to a warmer substance?
No. The opposite would be true.
A drug is any substance that is legalor illegal and any substance that is ingested or injected. True or False?
True
