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3 years ago

How many atoms does 2NaOH have

Chemistry

2 answers:

saul85 [17]3 years ago

8 0

The substance of 2 Naoh contains 6 atoms

ss7ja [257]3 years ago

4 0

The 2NaOH contains 6 Adams.

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Which of the following shows a decrease in entropy?

shusha [124]

Precipitation hope this helped you

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3 years ago

What is the velosity of a 72.3 kg jogger with a kinetic energy of 1080.0 J?

Svet_ta [14]

Answer: 5.47m/s

Explanation:

Mass = 72.3kg

K.E = 1080.0J

V =?

K.E = 1 /2MV^2

V^2 = 2K.E /M = (2x1080)/72.3

V = sqrt [(2x1080)/72.3]

V = 5.47m/s

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3 years ago

Why do scientists look for patterns in the world

Margarita [4]

Answer:

to do day-to day activities easily and make surrounding comfortable for man

Explanation:

as an example , binary numbers help to work computers ,calculators.they help us lot .

scientific methods also need to write large and small numbers in short ways .so, scientists find various patterns .

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2 years ago

Which of the following equations has correct formulas and also is a balanced equation?

aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

$2Be+O_2\rightarrow 2BeO$

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, $CaCO_3\rightarrow CaO+CO_2$

The correct equation for option C is, $2Mg+O_2\rightarrow 2MgO$

The correct equation for option D is, $KCl+HNO_3\rightarrow HCl+KNO_3$

Hence, the correct answer is, (B) $2Be+O_2\rightarrow 2BeO$

5 0

3 years ago

Which of the following is a reasonable ground-state electron configuration?

sladkih [1.3K]

The reasonable ground-state electron configuration is: 1s2 2s2 2p6 3s2 3p6 4s2 4d8

6 0

3 years ago

Read 2 more answers