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insens350 [35]
3 years ago
9

The metal which does react vigorously with halogens to form halides?

Chemistry
1 answer:
pshichka [43]3 years ago
5 0

Answer:

RUBIDIUM

Explanation:

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Which of the following statements about the nuclear envelope is false?
SVETLANKA909090 [29]

Answer:

The statement about the nuclear envelope which is false is D - The nuclear envelope is continuos with the Golgi apparatus.

Explanation:

The nuclear envelope is composed of two membranes pierced by pores. They are distributed throughout the entire surface of the envelope and are much more than perforations in which both external and internal membranes are continued. Inside the pores a set of proteins form a structure called NPC where the smallest molecules pass, since the larger ones require energy input. The nuclear envelope that is reinforced by filaments, its two bilayers are continued with the endoplasmic reticulum membrane system.

4 0
4 years ago
The compound P4S3 is used in matches and reacts with oxygen through the chemical reaction shown below.
devlian [24]

Answer:

m_{SO_2}=0.175gSO_2

Explanation:

Hello,

In this case, since the first step is to write the properly balanced chemical reaction:

P_4S_3 (s) +  8O_2 (g)\rightarrow P_4O_{10}(s) +  3SO_2 (g)

We can see that given the 0.200 g of P4S3 (molar mass 220 g/mol) the mole ratio between it and SO2 (molar mass 64 g/mol) is 1:3, therefore, the produced mass of SO2 turns out:

m_{SO_2}=0.200gP_4S_3*\frac{1molP_4S_3}{220gP_4S_3} *\frac{3molSO_2}{1molP_4S_3} *\frac{64gSO_2}{1molSO_2} \\\\m_{SO_2}=0.175gSO_2

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5 0
3 years ago
6. Dans un récipient de volume inconnu se trouve un mélange à l'équilibre contenant 0,280 mol d'oxyde de
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3 years ago
What stress will shift the following equilibrium system to the right? 2SO2(g) + O2(g) ⇌ 2SO3(g); ΔH= –98.8 kJ/mol Decreasing con
denpristay [2]

Answer:

Decreasing temperature.

Explanation:

  • Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.
  • The choices here:

1) Decreasing concentration of SO₂,

The concentration of  SO₂ decreases, so the reaction will be shifted to the left direction to suppress the decrease in SO₂ concentration.

2) Decreasing temperature,

ΔH= – 98.8 kJ/mol, the negative sign means that the reaction is exothermic and release the heat.

If the temperature decreased, this means that the products decrease, so the reaction will shift to the right to suppress the decrease in temperature.

<em>It is the right choice.</em>

3) Increasing concentration of SO₃:

Increasing concentration of SO₃ will shift the reaction to the left to suppress the effect of increasing the concentration of SO₃.

4) Increasing volume:

Increasing the volume will decrease the pressure.

Decreasing the pressure will shift the reaction of gases to the side of higher no. of moles (left side).

  • <em>So, the right choice is: Decreasing temperature.</em>

<em></em>

3 0
4 years ago
Which of the following statements sounds correct to you?
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