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dedylja [7]
3 years ago
8

BRAINLIESTTT ASAP!!! PLEASE HELP ME :)

Chemistry
2 answers:
sergeinik [125]3 years ago
8 0

Communication and Interview Skills. Interviews are often the cornerstone of any investigation. ...

Control Emotions. Investigators must be able to control their emotions. ...

Honesty and Ethics. ...

Technical Skills and Knowledge.

Hope this is the answer :(:

Ahat [919]3 years ago
6 0

Every science experiment should follow the basic principles of proper investigation so that the results presented at the end are seen as credible.

Observation and Hypothesis. ...

Prediction and Modeling. ...

Testing and Error Estimation. ...

Result Gathering and Presentation. ...

Conclusions. ...

Law Formation.

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Why are burning candles and rusting nails examples of chemical change?
stiv31 [10]
First Rusting is  slow oxidation of iron into iron oxide using H2O and oxygen in atmosphere which is a chemical reaction.

burning is also a oxidation but kinda fast using oxygen in atmosphere to oxidize the hydrocarbon(paraffin wax) in candle to give heat and CO2.

So they are both chemical reactions which happens at different rate.
8 0
4 years ago
given two equations representing reactions: which type of reaction is represented by each of these equations?
Sergeeva-Olga [200]

Answer:

Equation 1 - nuclear fission

Equation 2 - nuclear fusion

Explanation:

Nuclear fission is a reaction in which a large nucleus is split into smaller nuclei when it is bombarded by neutrons. The process produces more neutrons to continue the chain reaction. This is clearly depicted in equation 1 as shown in the question.

Nuclear fusion is a reaction in which two light nuclei combine in order to form a larger nuclei. This is clearly depicted in equation 2 as shown in the question.

7 0
3 years ago
In order for convention to transfer heat particles need to??
Lera25 [3.4K]
Circulate and move within a liquid or gas.
6 0
3 years ago
What is the average mass of a single silicon atom in grams?
torisob [31]

1 mol of Silicon = 28.0855 g (in average)

then

1 mol = 6.022*10^23 atoms

then

28.0855/(6.022*10^23) g/atom

4.66381*10^-23 g per atom


5 0
3 years ago
The molar mass of water is 18.0 grams per mole. What is the mass of 9.00 moles of water?
Tju [1.3M]

Answer:

162 grams

Explanation:

To find the mass from molar mass and moles, you simply multiply.

You get (18.0g)x(9.00 moles)

3 0
3 years ago
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