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3 years ago

what is it called when evaporation takes place beneath the surface of a liquid and at a much higher temperature

1 answer:

7 0

When evaporation takes place beneath the surface of a liquid and at a much higher temperature it is called vaporation. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

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What occurs both inside where it's hot and on the earth where it's cool

RideAnS [48]

<span> "convective" transport</span>

5 0

4 years ago

A nurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. If the stock bottl

kherson [118]

The correct answer is 0.44ml

For information, promethazine is a neuroleptic antihistamine inhibitor of H1 receptors of the phenothiazine family. It is a medicine used in the treatment of allergy (like rhinitis) and transient insomnia.

To respond to this exercise, it is necessary to cross-multiply.

In the antihistamine bottle solution:

25 mg corresponds to 1 ml

11 mg corresponds to: 11/25 = 0.44 ml of the solution.

This 0.44ml is taken from the bottle and put to the syringe.

5 0

3 years ago

Fluorine has an atomic number 9. It is in period 2 of the periodic table. The diagram shows the electron dot diagram of a fluori

jek_recluse [69]

Fluorine has C seven valence electrons.

Valence electrons are the electrons that are found on the outer shell of an atom that are capable of participating in chemical reactions. The easiest way to figure out how many valance electrons Fluorine has would be to look it up in a periodic table and notice that it a group 7 element and therefore has 7 valence electrons.

The other way to tell that Fluorine has 7 valence electrons is to notice that an element with an atomic number of 9 has 9 electrons. The electronic configuration of elements has the first 2 electrons go on the first shell or energy level $1s^2$ , the leaving the next 7 to go to the second shell $2s^22p^5$ which can take up to 8 electrons.

This means that Fluorine has 7 seven valence electrons.

6 0

3 years ago

Read 2 more answers

Write the balanced COMPLETE ionic equation for the reaction when aqueous NiCl₂ and aqueous Na₂S are mixed in solution to form so

Reptile [31]

Answer:

Explanation:

The chemical reaction of the well-balanced equation is as follows:

$\mathbf{2NiCl_{2(aq)}+2Na_2S_{(aq)} \to 4NaCl_{(aq)}+2NiS_{s}}$

The aforementioned reaction's ionic equation is:

$\mathbf{2Ni^{2+}_{(aq)}+4Cl^-_{(aq)}+ 4Na^+_{(aq)}+2S^{2-}_{(aq)} \to 4Na^+_{(aq)}+4Cl^-_{(aq)}+2NiS_{(s)}}$

From above; Na⁺ and Cl⁻ appear on both sides;

Hence, the net ionic equation is:

$\mathbf{2Ni^{2+}_{(aq)}+2S^{2-}_{(aq)} \to 2NiS_{(s)}}$

3 0

3 years ago

1 which equation demonstrates the law of conservation of mass?

Mrac [35]

Every balanced chemical reaction demonstrates the law of conservation of mass where the reactants have the same number of atoms as the products. For example, the production of ammonia gas.
N2 (g) + 3H2 (g) -> 2NH3 (g) you can see that there are two nitrogen atoms and six hydrogen atoms on both sides of the equation.

5 0

3 years ago