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raketka [301]
3 years ago
6

Dalton's Atomic Theory explains many well-established scientific laws including all of these except the

Chemistry
1 answer:
Andreas93 [3]3 years ago
3 0
A. Law of Conservation of Mass
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Very heavy elements such as gold and uranium are formed by
Molodets [167]

Answer:

Loss of neutrons

Explanation:

Hope this helps

4 0
3 years ago
What pattern do you see as you compare elements that belong in groups IA to VIIIA on the
topjm [15]
Group IA are metals and all react vigorously because they have 1 valence electron in their outer most shell and the reactivity increases as you go down the group. Group VIIIA are non reactive because of their complete valence shell.
5 0
3 years ago
PLEASE HELP AND EXPLAIN!Calculate the energy required to heat 187.0 g of ammonia from 36.1 °C to 52.9 °C. Assume the specific he
Alenkinab [10]

Answer:

E=1.48x10^4J

Explanation:

Hello!

In this case, since the energy implied in a heating process is computed by using the following equation:

E=mC(T_f-T_i)

Whereas m is the mass, C the specific heat and T the temperature. In such a way, by plugging in the given mass, specific heat and temperatures, we obtain the following energy:

E=187.0g*4.703\frac{J}{g\°C} (52.9\°C-36.1\°C)\\\\E=1.48x10^4J

Considering that the specific heat can by used by unit of °C or K because their difference is equivalent.

Regards!

3 0
3 years ago
What is the average atomic mass!?
Agata [3.3K]

Answer:

he average atomic mass of an element is the sum of the masses of its isotopes, each multiplied by its natural abundance

6 0
4 years ago
Is. Mg(s) --------------&gt; Mg2+(aq) + 2e−<br><br><br><br>oxidation or reduction?​
Kruka [31]

Answer:

Oxidation

Explanation:

Mg loses 2e- for it to gain it's stability hence the reaction above is oxidation

note: Oxidation is the loss of electrons while reduction is the gain of electrons

5 0
3 years ago
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