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3 years ago

Which of the four hypothetical substances you investigated would be most harmful to living organisms

1 answer:

5 0

I believe the most harmful substance would be element C, this is because element C has a very long half life therefore it has a very slow rate of a decay. Half life of a substance it the time taken for substance to decay to half its original mass or amount.

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What volume of 0.150 M 2 M Li2S solution is required to completely react with 120 mLmL of 0.150 M Co(NO3)2 MCo(NO3)2

svet-max [94.6K]

Answer:

Explanation:

M1V1=M2v2

M1=0.150M

M2=0.150M

V2=120*10^-3

V1=M2V2/M1

V1=0.150*120*10^-3/0.150

V1=0.12

7 0

3 years ago

The Young's modulus values for iron and lead are 210 GPa and 16 GPa, respectively. Based on the information, which statement is

Mrac [35]

Lead is more ductile than iron. The correct option is A. Lead is more ductile than iron

<h3>Young's modulus </h3>

From the question, we are to determine the statement which is true

First, we will define the term <em>Young's modulus </em>

<em>Young's modulus</em> is a measure of the stiffness of an elastic material. It is also given as the ratio of <u>stress </u>to <u>strain</u>. That is,

$Young's\ modulus = \frac{Tensile\ stress}{Tensile\ strain}$

The greater the modulus, the stiffer the material.

Materials with low Young's modulus tend to be <u>ductile </u>and materials with high Young's modulus tend to be <u>brittle</u>

Since the Young's modulus value for iron is higher than that of lead, then iron is <em>stiffer </em>than lead.

Thus, lead is more ductile than iron. The correct option is A. Lead is more ductile than iron

Learn more on Young's modulus here: brainly.com/question/26660981

3 0

2 years ago

Which statement best describes what happens when a person sees an orange T-shirt

seropon [69]

The answer is orange light reflected from the t-shirt enters human eyes.

5 0

4 years ago

Which of the following statements is true regarding hybridization?Hybridization occurs in plants more often than in animals.Hybr

olya-2409 [2.1K]

<h2>Answer:</h2>

The correct answer is option A which is hybridization occurs in plants more often than in animals.

<h3>Explanation:</h3>

Hybridization means mixing of different things.
In the context of biology, hybridization means the mixing of genetic material of the two dissimilar species. The resulting offspring is known as the hybrid.
In the case of animals, they are usually infertile as a mule, a hybrid of donkey and horse.
Hybridization always involves interspecies mating. And sometimes the natural selection is in favor of hybridization.
In plants, it is very common which is also known as crossbreeding and different types of plants and fruits are produced by this method.
Hence the correct option is A.

7 0

3 years ago

I need help ASAP you might have to zoom in

aliya0001 [1]

I think it’s a but try it

4 0

4 years ago

Read 2 more answers