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3 years ago

What is the length in inches (in) of a 100-meter soccer field?

Chemistry

1 answer:

max2010maxim [7]3 years ago

7 0

Answer:

3937 inches

Explanation:

1m = 39.37 inches.

However, we want to know how long a 100m soccer field is, so we have to times the value for 1m by 100.

Therefore, an 100m soccer field = 100 x 39.37 = 3937 inches

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Which shows the correct order of stages of technological design?

romanna [79]

Answer:

The four stages of technological design include identifying a need, designing and implementing a solution, and evaluating the solution.

I don't know what the options are, cause you didn't show them but, hope this helped.

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3 years ago

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Completion

Snowcat [4.5K]

Answer:

Compress
Fixed
Melts
Melting Point
Freezing Point
High
Crystalline
Lattice
Unit cell
Amorphous solids

Explanation:

Solids tend to be dense and difficult to compress.

They do not flow or take the shape of their containers, like liquids do, because the particles in solids vibrate around fixed points.

When a solid is heated until its particles vibrate so rapidly that they are no longer held in fixed positions, the solid melts.

Melting point is the temperature at which a solid changes to a liquid. The melting and freezing point of a substance are at the same temperature.

In general, ionic solids tend to have relatively high melting points, while molecular solids tend to have relatively low melting points.

Most solids are crystalline

The particles are arranged in a pattern known as a crystal lattice

The smallest subunit of a crystal lattice is the unit cell

Some solids lack an ordered internal structure and are called amorphous solids.

7 0

3 years ago

What is the solubility of La(IO₃)₃ in a solution that contains 0.100 M IO₃⁻ ions? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)

love history [14]

Solution and Explanation:

[La3+] = 0.1 M

At the equilibrium:

La(IO3)3 <----> La3+ + 3 IO3-

0.1 +s 3s

$\mathrm{Ksp}=[\mathrm{La} 3+][\mathrm{IO} 3-]^{\wedge} 3$

$7.5 * 10^{\wedge}-12=(0.1+s) *(3 s)^{\wedge} 3$

Since Ksp is small, s can be ignored as compared to the 0.1

The above shown expression thus becomes:

$7.5 * 10 \wedge-12=(0.1) *(3 s) \wedge 3$

$7.5 * 10^{\wedge}-12=0.1 * 27(\mathrm{s})^{\wedge} 3$

$s=1.406 * 10^{\wedge}-4 \mathrm{M}$

Answer: 1.4*10^-4 M

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3 years ago

Water beads up on waxy surfaces because of a ___________ degree of adhesion with the surface?

slavikrds [6]

Low
Water is better at sticking together with other water molecules than it is with the "waxy surfaces".

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3 years ago

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If a pharmacist dissolves 1.2 grams of a medicinal agent in 60 ml of a cough syrup having a specific gravity of 1.20, what is th

guapka [62]

Mass of medicinal agent taken = 1.2 g

the volume is 60 mL

Specific gravity = 1.20

So the mass of solution = specific gravity X volume = 1.20 * 60 = 72g

Now if we have increased the volume by 0.2 so the new volume = 60.2

New mass = 72 + 1.2 = 73.2

Specific gravity = mass / volume = 73.2 / 60.2 = 1.22 g/mL

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3 years ago