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PIT_PIT [208]
3 years ago
5

What are some things that are composed of only on element?

Chemistry
1 answer:
Dominik [7]3 years ago
3 0

Answer:

An aluminium drink can.

24 carat gold.

The helium gas in a balloon that floats upwards.

Cast iron garden railings.

Lead sheeting used by builders on the roofs of houses.

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Which choice is a predator? A. decomposer B. producer C. herbivore D. carnivore
pishuonlain [190]

Answer:

D carnivore

Explanation:

such as wolves eat rabbits

3 0
4 years ago
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Eugenol is a molecule that contains the phenolic functional group. Which option properly identifies the phenol in eugenol
givi [52]

Answer:

Explanation:

Hello,

Among the options given on the attached document, since phenolic functional group is characterized by a benzene ring bonded with a hydroxyl group (C₆H₅OH) we can see that the first option correctly points out such description. Thus, answer is on the second attached picture. Other options are related with other sections found in eugenol that are not phenolic.

Best regards.

3 0
4 years ago
What is the correct way to write 0.0000250 m in scientific notation?
yulyashka [42]
Scientific notation is: n * 10^a, where n is a number between 1 and 10 ( but not 10 itself ) and a is an integer.
We move decimal place to the left to create a new number from 1 to 10.
Answer:
0.0000250 m = 2.5 * 10^(-5) m.
7 0
3 years ago
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1. You find a separatory funnel set up in a fume hood. There are clearly two visible layers. Describe a method you could use to
hoa [83]

Answer:

You find a separatory funnel set up in a fume hood. There are clearly two visible layers. Describe a method you could use to determine which layer is the aqueous layer.

Explanation:

In the separating funnel, the liquid with less density exists at the top layer and the liquid with greater density will exist at the bottom layer.

To identify the aqueous layer, add a bit of water to the separating funnel.

Then, observe where the water will go and mix.

If it mixes with the bottom layer, then the bottom layer is the aqueous layer.

If water mixes with the top layer, then top layer is the aqueous layer.

3 0
3 years ago
What energy transfer is occurring when a plant uses energy from the sun to make sugar in fruit? Radiant energy is converted to n
IrinaK [193]

The right answer is Radiant energy is converted to stored chemical energy.

Photosynthesis aims to create energy (in the form of carbohydrate) from the light energy from the sun.

Solar energy is used to oxidize water and reduce carbon dioxide to synthesize organic substances (carbohydrates). This phenomenon occurs in chloroplasts, a plant-specific organelle, at the level of the thylakoid membranes where photosystems I and II and cytochromes are located.

7 0
4 years ago
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