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3 years ago

Water is a polar molecule. That means it has

Chemistry

1 answer:

77julia77 [94]3 years ago

7 0

Answer:

polarity is a description of how different the electrical poles in a molecule are. so the most likely answer is 4

You might be interested in

How many grams of NaCL are required to prepare 50ml of a 2.0 molar solution

Ksivusya [100]

Answer:

5.85 gm.

Explanation:

We know that,

Normality = Molarity × Molecular weight

Equivalent weight

Since molecular weight of NaCl= equivalent weight = 23+35.5 =58.5

Normality of NaCl= molarity=2

Now,

Normality= weight in gram ×1000

Volume ×equivalent weight

Weight in gram is given by,

=Normality × Volume × equivalent weight

1000

= 2× 50 × 58.5

1000

=5.85 gm.

4 0

3 years ago

Complete the complex dimensional analysis problem to determine the price of one atom of aluminum. A 20cm x 20cm square of alumin

mixer [17]

$8.09

Because you multiply and subtract to get the answer

7 0

3 years ago

What is the pressure of 5.0 mol nitrogen gas in a 2.0 L container at 286 K

g100num [7]

The "Ideal Gas Law Equations" is
$PV=nRT$
P= Pressure (in Pascals)
V=Volume (in Liters)
n=amount, or number (in moles)
R= 8.3145 $\frac{Pascals*Liters}{Moles*Kelvin}$ or $\frac{PaL}{molK}$
T= Temperature (In Kelvin)

$P= \frac{nRT}{V}$

Plug into the equation and you're good!
$P=\frac{nRT}{V}$
$P =\frac{(5mol)(8.3145)(286K)}{2L}$
$P=5944.8675Pa$

If your teacher cares about sig figs,
2 sig figs (significant figures)
$P=5900Pa$

For other units of pressure,
1 atm = 760 mmHG = 760 Torr = 101326 Pa = 1.01325 bar

5 0

3 years ago

5. The reaction A - C is shown in the diagram below. Is the reaction exothermic or

velikii [3]

Answer:

Exothermic reaction.

Explanation:

From the question given, we obtained the following:

The equation for the reaction:

A —> C

From the diagram given in the question above, the reactant, A has a higher energy than the product, C. This simply indicates exothermic reaction as the enthalphy change, ΔH will be negative for the reaction.

Enthalpy change, ΔH is simply the difference between the heat of product, Hp and the heat of reactant, Hr i.e

ΔH = Hp – Hr

Since the heat of the product is small, the enthalphy change, ΔH will be negative indicating that heat has be released to the surroundings. This is termed exothermic reaction.

8 0

3 years ago

What are the large plates that move? O gigantic plates O tectonic plates O volcanic plates O rock plates

KATRIN_1 [288]

Answer:

Tectonic plates

Explanation:

Tectonic plates are large plates that moves. There are different types of plate motion as a result of mantle convection.

A tectonic plate is better as referred to as the lithospheric plate.
It is made up of a part of the upper mantle and the overlying crust.
Together, they move over the fluid asthenosphere below.
The mantle below drives the lithosphere above.

8 0

3 years ago