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3 years ago

How does concentration affect our daily lives in science?

1 answer:

8 0

1. Increasing the concentration of one or more reactants will often increase the rate of reaction. This occurs because a higher concentration of a reactant will lead to more collisions of that reactant in a specific time period.

2. Physical state of the reactants and surface area.

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Use the periodic table to identify each of the following bonds as polar or nonpolar.

Molodets [167]

Answer:

Polar

Step-by-step explanation:

Electronegativity increases from left to right in the Periodic Table.

Cl is further right than C (both tinted pink) in the portion of the Periodic Table below.

Cl is more electronegative than C, so the Cl has a partial negative charge and the C has a partial positive charge.

The C-Cl bond is polar.

5 0

3 years ago

According to the law of reflection if the angle in incidence us 45 degrees what is the angle of reflection

weqwewe [10]

45

Angle of reflection = Angle of incidence

6 0

3 years ago

How many milliliters of water will it take to fill a 2 L bottle that already contains 1.87 L of water?

Aloiza [94]

Answer:

0.00013

Explanation:

I'm pretty sure. I first subtracted 1.87 from 2. I got 0.13. The conversion from mL to L is 0.001. I multiplied 0.13 and 0.001 and got 0.00013 mL.

6 0

3 years ago

2.15 g of an unknown gas at 71 degrees C and 1.10 atm is stored in a 1.75 L flask. Solve for the density and the molar mass of t

Vikki [24]

Explanation:

The given data is as follows.

mass = 2.15 g, T = $71^{o}C$ = (71 + 273) K = 344 K

P = 1.10 atm, V = 1.75 L

Now, according to the ideal gas equation PV = nRT

and, n = $\frac{mass}{\text{molar mass}}$

Hence, calculate the molar mass of unknown gas as follows.

PV = $\frac{mass}{\text{molar mass}} \times RT$

$1.10 atm \times 1.75 = \frac{2.15 g}{\text{molar mass}} \times 0.0821 \times 344 K$

Molar mass = $\frac{60.721}{1.925}$ g

= 31.54 g

As, density is the amount of mass present in liter of volume.

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

= $\frac{2.15 g}{1.75 L}$

= 1.22 g/L

Thus, we can conclude that mass of unknown gas is 31.54 g and its density is 1.22 g/L.

7 0

3 years ago

Read 2 more answers

Identity the solution that contains both the solute and solvent in the solid phase

DENIUS [597]

Answer:

salt in ice

Explanation:

both the solute and solvent are in solid phase

6 0

4 years ago

Read 2 more answers

How does concentration affect our daily lives in science?​

How does concentration affect our daily lives in science?