3 years ago

Show me the periodic table

Chemistry

1 answer:

yawa3891 [41]3 years ago

8 0

I think this is what you wanted, so good luck!

You might be interested in

At this lower concentration, about how many extra hydrogen bonds would be needed to hold a and b together tightly enough to form

Scrat [10]

2..............................................

8 0

3 years ago

NEED A AWNSER ASAP PLEASE!!!!

Gnoma [55]

Last one cuz it stay in the air for a while then swings making it kinetic

4 0

2 years ago

Read 2 more answers

Where is groundwater stored?

Tema [17]

Answer:

Answer Below! : )

Explanation:

Groundwater is stored in the tiny open spaces between rock and sand, soil, and gravel. How well loosely arranged rock (such as sand and gravel) holds water depends on the size of the rock particles.

Hope this helps! : )

8 0

2 years ago

Read 2 more answers

The atomic number of an element is determined by the number of electrons in the nucleus of the atom.

iren [92.7K]

A
The number of electrons/protons is the one that determines the atomic number of an element.

7 0

3 years ago

Read 2 more answers

The solubility of oxygen gas in water at 40 ∘c is 1.0 mmol/l of solution. What is this concentration in units of mole fraction?

juin [17]

The formula for mole fraction is:

$mole fraction of solute = \frac{number of moles of solute}{total number of moles of solution}$ -(1)

The solubility of oxygen gas = 1.0 mmol/L (given)

1.0 mmol/L means 1.0 mmol are present in 1 L.

Converting mmol to mol:

$1.00 mmol\times \frac{1 mol}{1000 mmol} = 0.001 mol$

So, moles of oxygen = 0.001 mol

For moles of water:

1 L of water = 1000 mL of water

Since, the density of water is 1.0 g/mL.

$Density = \frac{mass}{volume}$

$Mass = 1.0 g/ml\times 1000 mL = 1000 g$

So, the mass of water is 1000 g.

Molar mass of water = 18 g/mol.

Number of moles of water = $\frac{1000 g}{18 g/mol} = 55.55 mol$

Substituting the values in formula (1):

$mole fraction = \frac{0.001}{55.55+0.001}$

$mole fraction = 1.8\times 10^{-5}$

Hence, the mole fraction is $1.8\times 10^{-5}$ .

7 0

3 years ago