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Softa [21]
2 years ago
9

Which of the following is true about fossils?

Chemistry
2 answers:
Agata [3.3K]2 years ago
7 0

Answer:C

Explanation:

nikitadnepr [17]2 years ago
4 0
<h2>                        Hey Emma Here<em>!</em></h2>

Answer:

The answer is <u>B</u><em>!</em>

Explanation:

if they are lower this means that they have been on the ground longer there for older

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Which of the following is the correct set-up for the problem: How many grams of water will be produced from 3.2 moles of oxygen
suter [353]

Option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

<h3>Reaction between oxygen and ethene</h3>

Ethene (C2H4) burns in the presence of oxygen (O2) to form carbon dioxide (CO2) and water (H2O) along with the evolution of heat and light.

C₂H₄  + 3O₂   ----- > 2CO₂ + 2H₂O

from the equation above;

3 moles of O₂ ---------> 2(18 g) of water

3.5 moles of O₂ ----------> x

x = 3.2 \times [\frac{2 \ moles \ H_2O}{3 \ moles \ O_2}  ] \times[ \frac{18.02 \ g \ H_2O}{1 \ mole \ H_2O} ]

Thus, option C is the correct set of the problem for mass of water produced by 3.2 moles of oxygen and an excess ethene.

Learn more about reaction of ethene here: brainly.com/question/4282233

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1 year ago
Which statement supports Newton’s first law of motion?
fenix001 [56]
C. Planets can move at a varying speed due to forces exerted in space.
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If a student puts 2.7 moles of gas in a container with a volume of 57.0 and at a temperature of 127°C what is the pressure insid
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Hope this helped!

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Give an example of a mutation and explain how it could affect an organism?<br> Your answer
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A mutation is a heritable change in the genetic material of an individual. The change can be large or small. Large changes involve the loss, addition, duplication, or rearrangement of whole chromosomes or chromosome segments. Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.

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