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3 years ago

What are intensive properties of a triangle

1 answer:

Ivan3 years ago

7 0

A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side.

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Caclulate the pH for a solution with an [H+] = 9.75 x10-4

vovangra [49]

Answer:

pH=3.01

Explanation:

pH=-log[H+]

=-log(9.74x10e-4)

=3.01

3 0

3 years ago

What is Polyethylene?

Ksivusya [100]

Polyethylene is a type of plastic.

3 0

3 years ago

Can the components of the iron sulfide compound be separated by physical means (ex. filtration or boiling)? if not, how could th

Simora [160]

No use a magnet to pick up the iron

3 0

4 years ago

This equation is not balanced. Click on the coefficient we should change first.<br> help ASAP

horrorfan [7]

Answer: The coefficient we should change first is for $NO_{3}$ .

Explanation:

The given reaction equation is as follows.

$Al + Ni(NO_{3})_{2} \rightarrow Al(NO_{3})_{3} + Ni$

Here, number of atoms present on reactant side are as follows.

Al = 1
Ni = 1
$NO_{3}$ = 2

Number of atoms present on the product side are as follows.

Al = 1
Ni = 1
$NO_{3}$ = 3

To balance this equation, multiply Al by 2 and $NO_{3}$ by 3 on reactant side. Also, multiply $Al(NO_{3})_{3}$ by 2 and Ni by 3 on the product side.

Hence, the equation can be rewritten as follows.

$2Al + 3Ni(NO_{3})_{2} \rightarrow 2Al(NO_{3})_{3} + 3Ni$

Now, number of atoms present on reactant side are as follows.

Al = 2
Ni = 3
$NO_{3}$ = 6

Number of atoms present on product side are as follows.

Al = 2
Ni = 3
$NO_{3}$ = 6

Since, the atoms on both reactant and product side are same. Hence, it is now a balanced chemical equation.

Thus, we can conclude that the coefficient we should change first is for $NO_{3}$ .

7 0

3 years ago

Use the element symbols to write the electronic configuration Na

Fofino [41]

Electron Configuration is the distribution of electrons of an atom or molecule in an atomic or molecular orbitals.

So Na, or Sodium has 11 electrons, so the number should add up to 11

Na: 1s² 2s² 3p⁶ 3s¹

Hope this helps!

8 0

3 years ago