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NemiM [27]
3 years ago
7

One glass of water is 85 degrees F and another is 40 degrees F. When an Alka Seltzer tablet is dropped into each glass, at the s

ame time, which of the following describes the expected results?

Chemistry
1 answer:
Andreyy893 years ago
7 0

Answer:

the cold will get hot and the hot will get cold

Explanation:

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Which particle is J.J Thomson credited with discovering
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Thomson in 1897 was the first to suggest that one of the fundamental units was more than 1,000 times smaller than an atom, suggesting the subatomic particle now known as the electron. Thomson discovered this through his explorations on the properties of cathode rays.
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3 years ago
What is relationship between frequency and wavelength on a electromagnetic speptrum?
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That number, also known as the frequency, will be larger for a short-wavelength wave than for a long-wavelength wave. The equation<span> that relates wavelength and frequency for electromagnetic waves is: λν=c where </span>λ<span> is the wavelength, ν is the frequency and c is the speed of light.</span>
6 0
3 years ago
Use molecular orbital theory to determine whether He2 2+ or He2 + is more stable. Use molecular orbital theory to determine whet
julia-pushkina [17]

Answer:

The He₂ 2+ ion is more stable since it has a higher bond order (bond order = 1) than the He₂ + ion (bond order = 1/2).

Explanation:

Molecular orbital of He₂⁺

1\sigma_{1s}^21\sigma(star)_{1s}^1

There are two electrons in bonding and 1 electron in antibonding orbital

Bond order = \frac{(2-1)}{2}    

= \frac{1}{2}

Molecular orbital of He₂⁺²

1\sigma_{1s}^21\sigma(star)_{1s}^0

There are two electrons in bonding and 0 electron in antibonding orbital

Bond order = \frac{(2-0)}{2}

= 1

So bond order of He₂⁺² is 1 which is more stable than He₂⁺ whose bond order is   \frac{1}{2}   .

7 0
3 years ago
Who developed the first fabricated obturator? A. Paré B. Vesalius C. The Romans D. Fauchard
balandron [24]

I believe the correct answer is option A. Paré.

Or otherwise known as Ambroise Paré. He was considered one of the "fathers of surgery" for modern forensic pathology. And was known to be a pioneer in surgical techniques on the battlefield using medicine, mostly in the treatment/healing of wounds.

Hope I could help! :)

3 0
3 years ago
Read 2 more answers
Aqueous magnesium chloride reacts with aqueous aluminum carbonate to form precipitated magnesium carbonate and aqueous aluminum
Brums [2.3K]

Answer:

MgCl₂(aq) + Al₂(CO₃)₂(aq) --> MgCO₃(s) + AlCl₃(aq)

Explanation:

Magnesium Chloride - MgCl₂

Aluminium Carbonate - Al₂(CO₃)₃

Magnesium carbonate - MgCO₃

Aluminium Chloride - AlCl₃

The equation of this reaction is given as;

MgCl₂(aq) + Al₂(CO₃)₃(aq) --> MgCO₃(s) + AlCl₃(aq)

6 0
3 years ago
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