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NISA [10]
3 years ago
10

NO2+H4➡2 H2O+N What are the elements

Chemistry
2 answers:
UkoKoshka [18]3 years ago
7 0

Hydrogen, Nitrogen and Oxygen - they are all elements in the equation.

Firdavs [7]3 years ago
6 0
They are nitrogen, oxygen, hydrogen
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Calculate the volume of an object that has a mass of 20.00 g and a density of 2.45 g/cm^3.
sveta [45]

Answer:

2450000 gram

Explanation:

v= m × ρ= 1 cubic meter × 2.45 gram/cubic centimeter= 1000000 cubic centimeter × 2.45 gram/cubic centimeter= 2450000 gram

7 0
3 years ago
Read 2 more answers
(a) Write the dissolution reaction for solid Na2CO3 below. (Use the lowest possible coefficients. Include states-of-matter under
Andreas93 [3]

<u>Answer:</u>

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

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

<u>Explanation:</u>

  • <u>For a:</u>

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.)

  • <u>For b:</u>

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
How do you dispose a permanent glue?
const2013 [10]

Answer:

If you have the time you can take it to a Waste Management Facility.

Explanation:

Because these unhardened glues are flammable, do not dispose of them in the trash or down the drain. Keep them away from open flames. If the glue is water-based, solidify it and throw it in the trash.

8 0
4 years ago
Which of the following phrases best describes the disposal method used for high-level nuclear waste?
m_a_m_a [10]

<u>Answer:</u>

The disposal method used for high-level nuclear waste Concentrate and contain

<u>Explanation:</u>

High intensity nuclear waste is an underlying issue for the world where the generated nuclear waste is one side very hazardous and on other side would help us  in many viable processes but the negative sides of a consequence  just outnumber the positive sides of the situation.

Concentrate and contain is a waste disposable method which enables the nuclear waste to be preserved and isolated and later be used when the time comes. Other methods would not be suggested because they could cause a huge amount of dangerous radioactivity in oceans which is often harmful for people.

8 0
3 years ago
Explain the following observations
ddd [48]

Answer:

arattarabajajanz h

Explanation:

taraaratqwtwusbnz

7 0
3 years ago
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