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omeli [17]
3 years ago
11

Which substance is a compound? salt phosphorus sulfur oxygen

Biology
2 answers:
tankabanditka [31]3 years ago
8 0

Answer: The correct answer is salt.

A compound is a chemical substance which is formed by the combination of two or more elements, joined together in a fixed proportion.

Salt is a chemical compound which is formed by the reaction of an acid with a base. For example- NaCl ( sodium chloride) is a common salt. It is formed by the combination of two elements. Therefore, salt is a compound.

On the contrary, Phosphorous (P), sulfur (S) and Oxygen (O₂) are composed of a single element. Therefore, they are not compounds.

Thus, the correct answer for the compound is Salt .


DaniilM [7]3 years ago
5 0

Answer:

A) salt

Explanation:

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wlad13 [49]

Answer:

it is d all above

Explanation:

6 0
2 years ago
g If a colony of bacteria starts with 1 bacterium and doubles in number every 20 ​minutes, how many bacteria will the colony con
Lynna [10]

Answer: 2.81 x 10∧14 baterias after 16 hours.

Explanation:

Hi, first we have to find how many 20 minute intervals are in 16 hours.

If 1 hour = 60 min, 16hours = 960 minutes (16 h x 60 min / 1 h)

If we divide the 960 minutes (16 hours) by 20 minutes we obtain 48. (960/48)

There are 48 twenty minutes intervals in 16 hours.

Now we have to apply the exponential growth formula:

P (t) = Po (1 +r) ∧t

Where:  

P (t) = population at time t  

P (0) = initial population (1)

r = growth rate (1)

t = time (48)

Replacing with the values given:

P (t) = 1 (1 + 1) ∧48= 2.81 x 10∧14

2.81 x 10∧14 baterias after 16 hours.

7 0
2 years ago
Which of the following is a system of organs that collects oxygen from the external environment and transports it to the bloodst
ehidna [41]

Answer:D

Explanation:

Respiration is the process of taking in oxygen and release of Carbondioxide in the lungs(breathing),the absorption of the oxygen in the alveolar, into the blood stream for distribution to tissues , the combustion of the metabolites(glucose,amino acids, and fatty acids and glycerol)with the inhaled oxygen to give energy as ATPS and water vapour.

4 0
3 years ago
Living things are characterized by several properties, Write these function of life
Y_Kistochka [10]

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.

4 0
2 years ago
What is recombination genetic variaton
ANTONII [103]
<h2>Answer and Explanation </h2>

The genetic recombination is a biological process in which the recombination of homologous DNA strand occurs. There are three types of genetic recombination in human being that is :

Human Reproducation that is by introducing new gene combination to the population.

By cell Mutation is it  that is changes in the DNA.

By Gene flow it is that is by movement of a gene from one population to another population.


8 0
2 years ago
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