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omeli [17]
3 years ago
11

Is this right ? if it’s wrong correct me

Chemistry
2 answers:
Dimas [21]3 years ago
4 0
You can go to a website about that it will give you the answers
Shalnov [3]3 years ago
4 0
A website will be able to check your answers for you when doing periodic tables.
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What is the answers? <br> Is my answer right?
V125BC [204]

Answer:

I say the correct answers are primary and secondary and teriary.

Explanation:

I say you are right!!

5 0
3 years ago
if the reduced row echelon form of the augmented matrix for a linear system has a row of zeros, then the system must have infini
BigorU [14]

Answer:

False

Explanation:

If the row echelon form of the augmented matrix for a linear system has a row of zeros, then the there must not have infinitely many solution,

we can prove this with an example. Suppose we have an augmented matrix A for linear system with a row of zeros,

             1     0      0      1

A=         0     1       0    -2

            0     0       1    - 1

            0    0       0     0

we get

x1=1

x2=-2

x3=-1

so, system has an unique solution.

we can take inference that the given statement is wrong

7 0
3 years ago
Is hydrogen a solid liquid or gas?
Anestetic [448]
It can be in either state.....
8 0
3 years ago
What does the atomic numbrr represent on the periodic table?​
lesya692 [45]

Answer:

Explanation:

The atomic number tell us the number of protons and neutrons in the nucleus of an atom. in other words ,each element has a unique number that identifies how many protons are in one atom of that element example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

4 0
3 years ago
Calculate the mass percent (m/m) of a solution prepared by dissolving 51.56 g of NaCl in 164.2 g of H2O. Express your answer to
denis-greek [22]

Answer:

"23.896%" is the right answer.

Explanation:

The given values are:

Mass of NaCl,

= 51.56 g

Mass of H₂O,

= 165.6 g

As we know,

⇒  Mass of solution = Mass \ of \ (NaCl+H_2O)

                                 = 51.56+164.2

                                 = 215.76 \ g

hence,

⇒ Mass \ percent =\frac{Mass \ of \ NaCl}{Mass \ of \ solution}\times 100

                           =\frac{51.56}{215.76}\times 100

                           =23.896 \ percent

4 0
3 years ago
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