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Svet_ta [14]
3 years ago
14

Which term describes a trace, print, or remain of an organism preserved over time in a rock?

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0
B. Fossil

Why? Well skeleton seems like another answer BUT the definition of a fossil is an imprint of an organism on rock.

Example: A dinosaur presses it’s foot in dirt and it leaves a footprint or ‘fossil’ behind
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2H2 + O2 --> 2H2O can be classified as what type of reaction?
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Combustion reaction
Key: O2
O2 is normally in a chemical formula when you are used to burn anything, so basically, anything with O2 involves burning.
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3 years ago
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Give two examples in which the host is harmed.
dexar [7]

Answer:

lice, mosquito

Explanation:

both are examples of parasitism

edit: wait nvm i thought this was bio

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4 years ago
Which of the following is NOT a property of electromagnetic waves?
Delicious77 [7]
1. Is charge 2. Is the first one
7 0
3 years ago
A pinch of salt has
Inessa [10]

13.29 X 10^{21} moles of NaCl are in a pinch of salt and a pinch of salt has

approximately 3.29x10^{21} formula units of NaCl.

<h3>What are moles?</h3>

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is “mol”.

We know that 1 formula unit of sodium chloride has a molar mass of 58.44g/mol

Hence;

Mass of 1 formula unit = 58.44g

Mass of 3.29 x 10^{21} formula units

13.29 x 10^{21} x 58.44g

776.6676 x 10^{21}

Moles =\frac{776.6676 X 10^{21} }{ 58.44g}

Moles = 13.29 X 10^{21}

Therefore;

13.29 X 10^{21} moles of NaCl are in a pinch of salt.

Learn more about moles here:

brainly.com/question/15209553

#SPJ1

3 0
2 years ago
1. What is the crime that Mr. Fraser describes ?
Lyrx [107]

Looking for evidence entails careful study. The answers to the question is below;

<h3>Evidence and Fact finding</h3>

The crime that Mr. Fraser describes is drive-by killing.

The police select their suspect by the act of showing pictures to one of the teenagers and thereafter they the suspect out, the suspect the saw that shoot the father.

The fact was that there was no evidence since they did not find the gun and the car used in the crime was not identified. Even the suspect vehicle (shooter) was not identified also.

The approximate figure is about 252 out of 367 cases of wrongful conviction have been identified. That is 69% of DNA exonerations. Others about 250-285 cases.

The National Registry of Exonerations has stated that about 450 non-DNA-based exonerations  where there was eyewitness misidentification. That is about 3 quarters have eye witness testimonies.

Reconstructive memory is simply known as the act of remembering that involves the reproduction of an experience or event that is known to be partially stored in memory before.

Fraser challenged the judge to go out and inspect the crime scene themselves.

The outcome of the challenge was that the judge thereby granted the retrial for Francisco Carrillo and thus released him so he can prepare his defense before the prosecution day.

Mr. Fraser suggested that people learn to be more effective with how they handle things or situations so as to get the right evidence and also that people be more cautious about how true some eyewitness testimonies may be.

Learn more about this case from

brainly.com/question/24612601

3 0
2 years ago
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