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3 years ago

12

This is a force that acts over a distance, can not be seen, and causes like poles to repel and opposite poles to attract. What i

s this force?

2 answers:

algol [13]3 years ago

6 0

Answer:

Magnetic Force

Explanation:

Hitman42 [59]3 years ago

3 0

Answer:

Magnetism

Explanation:

Magnetism acts over a distance, is invisible, and has poles that attract and repel.

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How do you predict the geometrical shape of NH3 on VSEPR model

Sauron [17]

Answer:

NH3 Ammonia

Explanation:

Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.

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3 years ago

Which medium slows the speed of light waves? Select all that apply.

77julia77 [94]

Answer : pool water

Explanation:

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3 years ago

Technically speaking, in terms of chemistry and physics, steam is visible and can be seen.

Nezavi [6.7K]

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3 years ago

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Penicillinase, also known as β‑lactamase, is a bacterial enzyme that hydrolyzes and inactivates the antibiotic penicillin. Penic

sergeinik [125]

Explanation:

The given data is as follows.

$V_{max} = 6.8 \times 10^{-10} \mu mol/min$

$K_{m} = 5.2 \times 10^{-6} M$

Now, according to Michaelis-Menten kinetics,

$V_{o} = V_{max} \times [\frac{S}{(S + Km)}]$

where, S = substrate concentration = $10.4 \times 10^{-6}$ M

Now, putting the given values into the above formula as follows.

$V_{o} = V_{max} \times [\frac{S}{(S + Km)}]$

$V_{o} = 6.8 \times 10^{-10} \mu mol/min \times [\frac{10.4 \times 10^{-6} M}{(10.4 \times 10^{-6}M + 5.2 \times 10^{-6} M)}]$

$V_{o} = 6.8 \times 10^{-10} \mu mol/min \times 0.667$

= $4.5 \times 10^{-10} \mu mol/min$

This means that $V_{o}$ would approache $V_{max}$ .

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4 years ago

Which of these gases will have the greatest density at the same specified temperature and pressure?

ch4aika [34]

Answer:

Neon

The highest density among the inert gases is of Neon (Ne). This a factual data. Thus the highest density among given options is of Ne, as all the options are of inert gases.

Explanation:

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3 years ago