What is the percent composition of hydrogen in NH4HCO3?

Answers

Answer 1

Answer: To find the Percent Composition of an atom, you use this formula:
Mass of element in the compound you're studying on ( in this case it's 5 since there is 5 Hydrogens) over the mass of the compound (which is here 79), Multiplied by 100 since you want a percent.
So we get:
$(5)/(79) * 100$
So you get about:
$0.063 * 100$
$6.3$

So, the percent composition of Hydrogen in NH4HCO3 is 6.3%

Hope this Helps! :D

Answer 2

Answer:
i hope this helps hydrogen in a compound =5 h atoms are present
therefore % of composition =5/79 *100 so it equals 6.3%

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What is the name of the binary compound Mg3 (PO3)2? A. magnesium phosphate B. magnesium phosphide C. Tri magnesium diphosphite D. magnesium phosphite

Answers

The correct option is D.

Another way to write the chemical formula of magnesium phosphite is Mg3O6P2. The compound is made up of three atoms of magnesium, six atoms of oxygen and two atoms of phosphorus. The compound has anti fungal properties and it is also used as fertilizer. The compound is partially soluble in waster and it can be yellow or green in color.

Astrophysics and planetar Astrophysics and planetary science are considered subspecialties of y science are considered subspecialties of

Answers

Astrophysics and planetar Astrophysics and planetary science are considered subspecialties of Astronomy. Astronomy is the study of the sun, moon, planets, stars, comets, gas, galaxies, dust and other bodies and phenomena.

Note

Astrophysics - properties of space

Planetary Science - planet formation

I hope this helps, Regards.

Predict whether a reaction will occur when HClO and Sr(OH)2 solutions are mixed, if yes determine spectator ions in the ionic equation.

Answers

Answer:

$ClO^-\n\nSr^(2+)$

Explanation:

Hello there!

In this case, according to the reaction between hypochlorous acid and strontium hydroxide which yields stontium hypochlorite and water as a neutralization reaction:

$2HClO(aq)+Sr(OH)_2(aq)\rightarrow Sr(ClO)_2(aq)+2H_2O(l)$

Thus, since HClO is a weak acid, it is not fully ionized so the complete ionic equation turns out to be:

$2H^++2ClO^-+Sr^(2+)+2(OH)^-\rightarrow Sr^(2+)+2(ClO)^-+2H_2O(l)$

Whereas the spectator ions, which remain the same at both sides of the equation, are:

$ClO^-\n\nSr^(2+)$

Best regards!

Final answer:

A reaction occurs when HClO and Sr(OH)2 are mixed forming Sr(ClO)2 and H2O. In this reaction there are no spectator ions as all ions participate in the reaction forming new compounds.

Explanation:

When HClO (hypochlorous acid) and Sr(OH)2 (strontium hydroxide) solutions are mixed, a reaction takes place, resulting in the formation of Sr(ClO)2 and H2O. In this reaction, Sr2+ and OH- from Sr(OH)2 and H+ and ClO- from HClO are the ions that participate, therefore there are no spectator ions in the reaction. In the net ionic equation, spectator ions are the ions that remain the same in their ionic form on the both sides of the equation (reactant side and product side), thus, in this case, there are none. It's important to understand the concept of

solubility guidelines

and their use in determining reaction outcomes and recognizing

spectator ions

Learn more about Chemistry of Reaction here:

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Determining nitrogen balance in the clinical setting can be very valuable. To determine a client’s state of nitrogen balance, a 24-hour urinary urea nitrogen collection is done. What do you also need to do?

Answers

Answer:

We also need the nitrogen intake

Explanation:

The nitrogen balance is the difference between the nitrogen intake and nitrogen excreted. If this calculation is positive, the body grow; if it is negative, the body is decreased.

5. Which quantities must be conserved in all chemical reactions?

Answers

In every chemical reaction, the number of atoms of each component reactant, mass, and energy must be conserved.

Law of conservation in chemical reactions

The law of conservation in chemistry states that atoms, matter, mass, and or energy in chemical reactions can neither be created nor destroyed but may be converted from one form to another.

Following this law, the quantities that must be conserved in chemical reactions are:

atoms
mass/matter
energy

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In a chemical reaction, the quantities that must be conserved is Matter ( The law of conservation states matter cannot be created nor destroyed.) If the matter is conserved that means the reactants mass is the same as the product. So if matter is conserved, mass is conserved. Another quantity that must be conserved is the number of particles.
Hope this helps! :)

Which of the following descriptions explain the process of water freezing? A. What're molecules speed up until the escape into a different phase.
B. Water molecules slow done until they begin to form stronger bonds together.
C. As water molecules cool, their shape changes from rounded to irregular, making them more likely to link to one another
D.Water molecules are squeezed together by high pressure until they begin to stick to one another.

Answers

The correct option is B.

When the temperature of water is reduced, the water cools down and the molecules of the water lose energy and move slowly. As the water is cooling down its volume expands. When the temperature of the water reaches zero degree Celsius, the molecules of the water stick together and form solid ice, thus turning from a liquid state to a solid state.

The process of freezing occurs when B) water molecules slow down until they begin to form stronger bonds together. These stronger bonds eventually turn the water molecules into a solid formation.

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