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rusak2 [61]
3 years ago
10

Need To Knows On the left side (reactant) side of the equation, how many total hydrogen (H) atoms are showing? NH3 + HCI NH4CI O

ne, Two, Three, or Four?
​
Chemistry
1 answer:
BARSIC [14]3 years ago
8 0

Answer:

Four.

Explanation:

Hello!

In this case, according to the given chemical reaction:

NH_3 + HCI\rightarrow NH_4Cl

Thus, since the reactants side (left) has three hydrogens in ammonia and one hydrogen in hydrochloric acid, we infer it has four hydrogen atoms at this side. Moreover, products side (right) has 4 hydrogen atoms as well, which means that the law of mass action is respected.

Best regards!

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A chemist prepares a solution of silver(II) oxide by measuring out 0.0013 of silver(II) oxide into a 100 mL volumetric flask and
azamat

Answer:

1.3x10⁻⁸ mol/L

Explanation:

<em>0.0013μmol, Calculate concentration in mol/L</em>

<em />

To obtain concentration in mol/L we need to convert the μmoles to moles and mL to liters:

<em>Moles silver(II) oxide:</em>

0.0013μmol × (1mol / 1x10⁶μmol) = 1.3x10⁻⁹ moles

<em>Liters solution:</em>

100mL * (1L / 1000mL) = 0.1L

That means concentration in mol/L is:

1.3x10⁻⁹ moles / 0.1L =

<h3>1.3x10⁻⁸ mol/L</h3>
6 0
3 years ago
What makes people more vulnerable to addition​
Dovator [93]
Do you mean addiction? Genetics can make people more vulnerable to addiction, but I’m not sure what it means to be venerable to addition lol
7 0
3 years ago
In the reaction MgCl2 + 2KOH → Mg(OH)2 + 2KCI, how many grams of KOH
dsp73

Answer:

The correct option is;

D. (2)(56 g)

Explanation:

MgCl₂ + 2KOH → Mg(OH)₂ + 2KCl

From the balanced chemical reaction equation, we have;

One mole of MgCl₂ reacts with  two moles of KOH to produce one mole of Mg(OH)₂ and 2 moles of KCl

Therefore, the number of moles of KOH that react with one mole of KCl = 2 moles

The mass, m, of the two moles of KOH = Number of moles of KOH × Molar mass of KOH

The molar mass of KOH = 56.1056 g/mol

∴ The mass, m, of the two moles of KOH = 2 moles × 56.1056 g/mol = 112.2112 grams

The amount in grams of KOH that react with one mole of MgCl₂ = 112.2112 grams ≈ 112 grams =  (2)(56 g).

4 0
3 years ago
How many grams are there in 4.60 x 10 24atoms of silver?
Snezhnost [94]

Answer:

820 g (i think)

6 0
3 years ago
Jenny knows that the atomic number of the element potassium, K, is 19. She also
hoa [83]

Answer:

c. 39

Explanation:

You round the number 39.098 to make it easier. Since you can't round it up to forty because the number after the 9 in-front of the decimal is a over i is unable to be rounded up

8 0
4 years ago
Read 2 more answers
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