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Setler79 [48]
3 years ago
10

In order to prove that the Law of Conservation Mass is obeyed, what are the coefficients

Chemistry
1 answer:
Brums [2.3K]3 years ago
5 0

Answer: C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation for combustion of propane will be :

C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

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When designing an experiment, scientists make predictions about what results will occur if their hypothesis is correct. One of t
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Answer:

There is no formation of shmoos

Explanation:

If the hypothesis that says "Fus3 kinase is required for the signal transduction pathway leading shmoo formation" is correct, then a strain with a deletion Fus3, is not going to render Fus3 kinase, at least active.  By this reason, there will not be shmoo formation

6 0
4 years ago
s fo"rmed when one atom of carbon (atomic number 6) is covalently" bonded with two atoms of oxygen (atomic number 8). What is th
sweet [91]

<u>Answer:</u> The total number of electrons that must be shared between carbon and oxygen atoms are 8.

<u>Explanation:</u>

A covalent compound is formed when sharing of electrons takes place between the atoms forming a compound.

Carbon is the 6th element of the periodic table having electronic configuration of 1s^22s^22p^2

This element requires 4 electrons to complete its shell.

Oxygen is the 8th element of the periodic table having electronic configuration of 1s^22s^22p^4

This element requires 2 electrons to complete its shell.

So, in order to complete the octet of both the elements, 2 oxygen atoms are required for 1 carbon atom.

Hence, the total number of electrons that must be shared between carbon and oxygen atoms are 8.

5 0
3 years ago
Perform the following operationand express the answer inscientific notation.7.00x10^5 - 5.00x10^4
11Alexandr11 [23.1K]

Taking into account the scientific notation,  the result of the subtraction is 6.5×10⁵.

<h3>Scientific notation</h3>

First, remember that scientific notation is a quick way to represent a number using powers of base ten.

The numbers are written as a product:

a×10ⁿ

where:

  • a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.
  • n is an integer, which is called an exponent or an order of magnitude. Represents the number of times the comma is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.
<h3 /><h3>Subtraction in scientific notation</h3>

You want to subtract two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found. In this case, the highest exponent is 5.

Then all the values ​​are expressed as a function of the base 10 exponent with the highest exponent. In this case: 5.00×10⁴=0.500×10⁵

Taking the quantities to the same exponent, all you have to do is subtract what was previously called the number "a". In this case:

7.00×10⁵ - 0.500×10⁵= (7.00- 0.500)×10⁵= 6.5×10⁵

Finally, the result of the subtraction is 6.5×10⁵.

Learn more about scientific notation:

brainly.com/question/11403716

brainly.com/question/853571

#SPJ1

3 0
2 years ago
What is another name for the Group 2 Elements? *
Ira Lisetskai [31]
Group 2 elements are the alkaline earth metals
5 0
2 years ago
True or false according to the principle of base pairing hydrogen bonds could form only between adenine and cytosine
prohojiy [21]
Answer is: false.
<span>According to the principle of base pairing hydrogen bonds could form between adenine and thymine (two hydrogen bonds between this nucleobases) and guanine and cytosine (three hydrogen bonds between this nucleobases).
Adenine and guanine are </span>purine derivatives and thymine and cytosine are pyrimidine<span> derivates.</span>
8 0
3 years ago
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