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3 years ago

The element with the most stable nucleus and smallest mass per particle is

Chemistry

1 answer:

Margaret [11]3 years ago

4 0

"18) the element with the most stable nucleus and smallest mass per particle is:A) uranium.B)argon C) helium."

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What’s the answer to this question pls help

Solnce55 [7]

In order of reactivity: magnesium, iron, copper, silver

4 0

2 years ago

(a) Write the dissolution reaction for solid Na2CO3 below. (Use the lowest possible coefficients. Include states-of-matter under

Andreas93 [3]

Answer:

For a: The chemical equation for the dissolution of sodium carbonate is $Na_2CO_3(s)\rightarrow Na_2CO_3(aq.)$

For b: The net acid-base reaction is $CO_3^{2-}(aq.)+H_2O(l)\rightarrow OH^-(aq.)+HCO_3^-(aq.)$

Explanation:

For a:

Dissolution reaction is defined as the reaction in which a solid compound gets dissolved in water to form aqueous solution.

The chemical equation for the dissolution of sodium carbonate follows:

$Na_2CO_3(s)\rightarrow Na_2CO_3(aq.)$

Ionization reaction is defined as the reaction in which an ionic compound dissociates into its ions when dissolved in aqueous solution.

The chemical equation for the ionization of sodium carbonate follows:

$Na_2CO_3(aq.)\rightarrow 2Na^+(aq.)+CO_3^{3-}(aq.)$

For b:

Now, the anion formed which is $CO_3^{2-}$ reacts with water to form conjugate acid.

The chemical equation for the reaction of anion with water follows:

$CO_3^{2-}(aq.)+H_2O(l)\rightarrow OH^-(aq.)+HCO_3^-(aq.)$

Hence, the net acid-base reaction of the anion formed and water is written above.

3 0

3 years ago

Explain why Nitrogen -17 is unstable

Yuri [45]

Has only 7 electrons so it want to bond with other elements so its very reactive and unstable. Hope this helps

4 0

1 year ago

How much heat is required to raise the temperature of 835g of water from 35.0°C to 65.0°C?

Anna007 [38]

Answer:

25,050 calories.

Explanation:

A calorie is the amount of energy needed to raise the temperature of one gram of water 1 degree centigrade. If we are raising 835 grams of water 30 degrees then we multiply 835*30 to get 25,050 calories.

3 0

3 years ago

If you are traveling at 60mi/hr, how many meters per second is that equivalent to?

lesya [120]

Answer:

26.8224 Meters per Second.

5 0

2 years ago