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3 years ago

What element symbol does "X" represent?

Chemistry

2 answers:

spayn [35]3 years ago

7 0

X is the chemical symbol of the element

monitta3 years ago

3 0

Answer:

there is none

Explanation:

your thinking of the symbol for chemical symbol for the element

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Listed following are some distinguishing characteristics of comets, meteors, and asteroids. Match these to the appropriate categ

9966 [12]

The distinguishing characteristics of comets, meteors, and asteroids are its composition.

<h3>What are the characteristics of comets, meteors and asteroids?</h3>

Asteroids are the fragments of rock that were left over from the creation of the solar system, Meteors are the rocks that enter the atmosphere of the Earth from space while on the other hand, Comets are the remnants of the formation of the solar system that are made of dust, rocks, and ice. All these materials i.e. comets, meteors and asteroids are different from one another due to its structure and chemical composition.

So we can conclude that the distinguishing characteristics of comets, meteors, and asteroids are its composition.

Learn more about asteroids here: brainly.com/question/11996385

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5 0

1 year ago

Borane (BH3) adds to alkenes to form an alkylborane. In the first box draw the mechanism arrows, and in the second box draw the

OLEGan [10]

Answer:

The reaction when the Borane (BH3) is add to an alkene and form an alkylborane is shown below.

Explanation:

The boron of the borane does not have extra electron pairs, in this way the double bond of the alkene attacks the boron and the hydrogen belonging to the borane adheres to the carbon that is more substituted, thus forming an alkyl borane.

6 0

2 years ago

how many grams of nitrogen gas will be formed upon the complete reaction of 30.6 grams ammonium nitrate

artcher [175]

Answer:

5.355 g

Explanation:

first you have 30.6 g from ammonium nitrate ( NH4NO3 )

molecular weight for NH4NO3 is 80 g/mole

and molecular weight for nitrogen gas N2 is 14 g/ mole

make this

NH4NO3 --------------> N2

80 g/mol --------------> 14 g/mol

30.6 g ---------------> x

So X = 14 x 30.6 ÷ 80 = 5.355 g of N2

Good Luck

3 0

3 years ago

How many primary,secondary and Tertiary carbons are in the compound. 2,3-dimethyl pentane. And

r-ruslan [8.4K]

Answer:

5 primary carbon atoms

3 secondary carbon atoms

4 tertiary carbon atoms

6 hydrogen atoms

6 0

3 years ago

A process uses 63,400 SCF/h of natural gas. What is the annual cost of natural gas used in the process?

artcher [175]

Explanation:

It is known that 1 SCF produces approximately 1000 Btu of thermal energy.

As it is not mentioned for how many hours the gas is used in this process. Therefore, we assume that the total number of hours natural gas used in this process are as follows.

$365 \times 24$ = 8760 hours

Now, we will calculate the annual cost of natural gas used in the process as follows.

$8760 \times 63400$

= 555384000 SCF

Hence, annual cost of natural gas used in this process = loss of thermal energy

This will be equal to, $555384000 \times 1000$

= 555,384,000,000 BTU

Thus, we can conclude that the annual cost of natural gas used in the process is 555,384,000,000 BTU.

4 0

3 years ago