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Pepsi [2]
3 years ago
15

Which statement supports the fact that radioactive isotopes are useful in medicine?

Chemistry
2 answers:
Mice21 [21]3 years ago
7 0

the answer is

C. I-123 can be used to help diagnose and treat thyroid problems.

Nastasia [14]3 years ago
4 0

elements using your lessons and experience within this virtual lab. 150 words max   its a

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What is the mass of 19.5 moles of carbon dioxide?
Olenka [21]

Explanation:

mass = moles * molar mass

molar mass of carbon dioxide (CO2) = 12+32 = 44

= 19.5* 44 = 858

proof

moles = mass /molar mass

= 858/44 = 19.5 moles

6 0
3 years ago
What are atoms in general
AVprozaik [17]

Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you.

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Which of the following is true of atoms with very low electronegativity
Katarina [22]

Answer:

well there is no chose here is my best option i would chose

1 Electronegativity is the ability of an atom to attract electrons.

Explanation:

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3 years ago
How do I go from molecules to moles? For example 1.50e23 molecules NH3 how many moles are in this problem?
maxonik [38]
To go from molecules to moles divide by Avogadro's number [<span>6.02x10^23]</span>
Example:
1.50x10^23 divided by 6.02x10^23 = 0.249 moles rounded to three significant figures
4 0
3 years ago
What cycloalkanes are present in a steroid ?
11Alexandr11 [23.1K]
Steroids are biologically very important compounds. They are made up of more that seventeen carbons. The structure of Steroid is comprised of a fused cycloalkane ring system. The simplest steroid and the main skeleton of all steroids is Gonane.

Gonane is made up of four cycloalkane rings i.e. tetracyclic hydrocarbon ring structure. Among these four rings 3 are cyclohexanes (designated as A, B and C) and one is cyclopentane (Designated as D). These four rings fuse to form a <span>cyclopentaperhydrophenanthrene.

The Nucleus (Gonane) of steroids along with some derivatives are shown below,</span>

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