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oee [108]
2 years ago
15

Zinc metal reacts with hydrochloric acid (HCl) to produce hydrogen gas. What best describes this reaction?

Chemistry
1 answer:
Lena [83]2 years ago
8 0

Answer: What best describes the reaction is "A single replacement reaction takes place because zinc is more reactive than hydrogen."

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Which two features are used to describe matter?<br> om
andreyandreev [35.5K]

Answer:

Physical properties are used to observe and describe matter. Physical properties can be observed or measured without changing the composition of matter. These are properties such as <em>mass, weight, volume, and density.</em>

6 0
2 years ago
usando el concepto de valencia para los elementos S, P Y Br predice las formulas de los compuestos mas simples formados por esto
hram777 [196]

Explanation:

Teniendo en cuenta los numeros de oxidacion negativos de cada uno

P:fosforo(-3)

S:Azufre (-2)

Br:Bromo (-1)

Y el H: hidrogeno con una valencia

positiva de +1

los compuesto que se formaran son los siguientes

1 H3P= fosfuro de hidrogeno

2 H2S= sulfuro de hidrogeno

3 HBr= Acido bromhidrico

ESPERO ABERTE AYUDADO ;D

6 0
2 years ago
. In which reaction is nitric acid acting as an oxidising agent?
Talja [164]

Answer:

B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2

Explanation:

Hello,

In this case, we should understand oxidizing agents as those substances able to increase the oxidation state of another substance, therefore, in B. reaction we notice that copper oxidation state at the beginning is zero (no bonds are formed) and once it reacts with nitric acid, its oxidation states raises to +2 in copper (II) nitrate, thus, in B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2 nitritc acid is acting as the oxidizing agent.

Moreover, in the other reactions, copper (A.), sodium (C. and D.) remain with the same initial oxidation state, +2 and +1 respectively.

Regards.

8 0
3 years ago
Read 2 more answers
(6) 在 420 毫升的柳橙汁中,柳橙原汁對水的比是4:3,加入<br>100 毫升的水後,柳橙原汁對水的比是多少?​
Eva8 [605]

Answer:

你这个傻瓜你会死的很蠢!

I hope you helped^_^

6 0
2 years ago
Manganese(III) oxide is a transition metal compound. The oxidation state of manganese in this compound is _______ , and the chem
Kisachek [45]

Answer:

Hello my Friend! The answer is: Manganese(III) oxide is a transition metal compound. The oxidation state of manganese in this compound is +3 , and the chemical formula of the compound is Mn2O3.

Explanation:

Manganese can have two oxidation states: +2 and +3, but in this case, the "(III)"  indicates that in this compound, the state of oxidation is +3.

7 0
3 years ago
Read 2 more answers
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