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xz_007 [3.2K]
3 years ago
13

Scientists who are investigating what has happened over the years to the people who were exposed to radiation during the 1986 Ch

ernobyl nuclear disaster are conducting what type of study
Chemistry
1 answer:
aleksandrvk [35]3 years ago
8 0

Answer:

Observational study

Explanation:

An investigation of what happened over the years to the people who were exposed to radiation during the 1986 Chernobyl nuclear disaster would be termed <u>an observational study</u> because it will require observing subjects and finding out if there is a kind of correlating factor in the subjects that could indicate the level of exposure to the nuclear radiation.

There are basically two types of research studies:

1. Observational studies

2. Experimental studies

Observational studies involve just the observation of subjects and trying to find out some correlation factors. This kind of study could be prospective when it deals with what could happen in the future based on certain factors or retrospective when it considers what has already happened. An observational study can be cross-sectional, case-only, case-control, or cohort study.

Experimental studies are also referred to as randomized or controlled trial studies. Here, subjects are grouped and each group receives a different treatment in order to isolate the effect of a particular factor or variable relating to the treatment.

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Convert 5.28 x 1019 molecules of C6H1206 to grams.
nlexa [21]

Answer:

m=0.0158g

Explanation:

Hello there!

In this case, it is possible to comprehend these mass-particles problems by means of the concept of mole, molar mass and the Avogadro's number because one mole of any substance has 6.022x10²³ particles and have a mass equal to the molar mass.

In such a way, for C₆H₁₂O₆, whose molar mass is about 180.16 g/mol, the referred mass would be:

m=5.28x10^{19}molecules*\frac{1mol}{6.022x10^{23}molecules}*\frac{180.16g}{1mol}\\\\m=0.0158g

Best regards!

5 0
3 years ago
The chemical equation may not be balanced with HCI + NaOH
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Answer:

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Explanation:

3 0
3 years ago
What is meant by conversion of energy
MissTica

the process of changing one form of energy into another

4 0
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How does the suns energy contribute to the movement of water in the water cycle?
Troyanec [42]

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Explanation:

The suns heat speeds the movement of water molecules, until the molecules move fast enough that they jolt out the surface of the water individually. Overtime the water gradually evaporates into water vapor.

5 0
2 years ago
A scientist has 0.46 mL of a solution. How would she convert this volume to microliters?
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8 0
3 years ago
Read 2 more answers
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