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KATRIN_1 [288]
3 years ago
5

PLS ANSWER IF YK TEST IS TIMED

Chemistry
1 answer:
krok68 [10]3 years ago
7 0

Answer:

a and c

Explanation:

protons and electrons have charge

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answer last one “How many moles of hydrogen are consumed to produce 100 g ammonia” ? explanation and answer required then u get
SVETLANKA909090 [29]

Answer:

The answer is 17.03052. We assume you are converting between grams Ammonia and mole.

4 0
3 years ago
An aqueous solution of sodium sulfide is allowed to react with an aqueous solution of magnesium chloride.
olya-2409 [2.1K]

Answer : The correct option is, (b) 2Na^+

Explanation :

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced molecular equation will be,

Na_2S(aq)+MgCl_2(aq)\rightarrow 2NaCl(aq)+MgS(s)

The complete ionic equation in separated aqueous solution will be,

2Na^+(aq)+S^{2-}(aq)+Mg^{2+}(aq)+2Cl^{-}(aq)\rightarrow 2Na^+(aq)+2Cl^{-}(aq)+MgS(s)

In this equation the species Na^+\text{ and }Cl^{-} are the spectator ions.

Hence, the complete ionic equation contains specie is 2Na^+

4 0
3 years ago
A dosage is prescribed as 4.00 mg of medicine per kg of body weight.What dose should be given to a 112 pound person
vodka [1.7K]

Answer:

203.64 mg

Explanation:

112/2.2= 50.91

50.91x4.00= 203.64

4 0
4 years ago
How did rutherford's experimental evidence lead to the development of a new atomic number
borishaifa [10]
Rutherford's experiment was the gold foil experiment.

The gold foil experiment was him shooting alpha particles (you could think of this as a Helium atom without its electrons) into a gold foil. The whole experiment was surrounded with something called Zinc Sulfide which sparked when the alpha particles hit it.

Most of the alpha particles went through, approximately 1 in 8000 alpha particles deflected at a large angle (almost right back to where it was shot).

This constant ratio caused him to conclude that:-the atom was mostly empty space (since most alpha particles went through)-there was something very positive in the atom (the proton)-the proton was very dense (since it made something going light speed deflect back at a large angle)-The proton was also very small (since only 1 in 8000 hit it)

Prior to the discovery of the proton, John Dalton's periodic table was used. Having "elements" such as soda and potash. Now that we have discovered the proton and found out that each atom's number of protons is unique, we used that to classify each element's identity.
8 0
4 years ago
How many different possible structures of trichlorobenzene exist?
Ilia_Sergeevich [38]

Answer:

There are 3 isomers so the answer is C) 3

7 0
3 years ago
Read 2 more answers
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