1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ludmilka [50]
2 years ago
10

Sodium hydrogen carbonate decomposes above 110°c to form sodium carbonate, water, and carbon dioxide. 2nahco3(s) na2co3(s) + h2o

(g) + co2(g) one thousand grams of sodium hydrogen carbonate are added to a reaction vessel, the temperature is increased to 200°c, and the system comes to equilibrium. what happens in this system if another 50 g of sodium carbonate are now added?
Chemistry
1 answer:
Korolek [52]2 years ago
3 0

The given chemical equation is,

2NaHCO_{3}(aq)  Na_{2}CO_{3}(aq)+CO_{2}(g) + H_{2}O(g)

When sodium carbonate is added the system tries to minimize the effect of the additional product added, by shifting the equilibrium such that the extra product is converted back to the reactants. This takes place until the equilibrium is re-established. Therefore, the equilibrium shifts towards the reactants side. The concentrations of sodium carbonate, carbon dioxide and water vapor decrease while the concentration of sodium hydrogen carbonate increases.

You might be interested in
Could someone please HELP ME
scoundrel [369]

a) chemical energy

b) by electricity

c)

(i) Light

(ii) thermal transfer

<em>By </em><em>Benjemin</em>

8 0
2 years ago
What happens immediately before a volcano erupts?
Firdavs [7]
Well, the cause of a volcanic eruption is when the lower crust melts. This leads to the formation of magma. The volcano is an opening through which the magma is discharged. The rock inside the earth melts. This magma is diffused upwards through the volcano. If magma reaches the top of the volcano, it behaviour depends on viscosity. So what happens before a volcanic eruption is that the lower crust melts, causing the formation of magma, which is released through the volcano. Hope i helped. 
3 0
3 years ago
How many core electrons are in a ground state atom of selenium?
Harman [31]
Electrons in an atom can be classified as core electrons and valence electrons. Valence electrons are those electrons which are present in valence shell and participates in bond formation. While, Core electrons are all remaining electrons which are not present in valence shell, hence not take part in bonding.

Atomic number of Selenium (Se) is 34 hence it has 34 electrons with following electronic configuration;

                          1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁴

From electronic configuration it is found that the valence shell is 4, and the number of electrons present in valence shell are 6. So, 

             Core Electrons  =  Total Electrons - Valence Electrons

             Core Electrons  =  34 - 6

             Core Electrons  =  28

Result:
          There are 28 core electrons in Selenium.
3 0
3 years ago
44.8% of a 250. mL acid solution is used in an experiment, what volume of acid (in mL) was used?
postnew [5]

Answer:

112 mL  

Explanation:

The formula for percent by volume is

\text{Percent by volume} = \dfrac{\text{Volume of solute}}{\text{Volume of solution}}\times 100 \, \%

If you have 250 mL of a solution that is 44.8 % v/v,

\begin{array}{rcl}44.8\, \% & = & \dfrac{\text{Volume of solute}}{\text{250 mL}}\times 100 \, \%\\\\44.8 \times \text{ 250 mL} & = & \text{Volume of solute} \times 100\\\text{Volume of solute} & = & \dfrac{44.8 \times 250\text{ mL}}{100}\\\\ & = & \textbf{112 mL}\\\end{array}

7 0
3 years ago
As carbon dioxide enters systemic blood, it causes more oxygen to dissociate from hemoglobin, which in turn allows more CO2 to c
vagabundo [1.1K]

Answer:

The correct answer is "False".

Explanation:

It is false that as carbon dioxide enters systemic blood, it causes more oxygen to dissociate from hemoglobin. Once an atom of oxygen binds to hemoglobin, hemoglobin change its shape and makes easier than a second and a third atom of oxygen binds towards it. This change in conformation makes no possible that carbon dioxide can cause that oxygen dissociates from hemoglobin.

5 0
3 years ago
Other questions:
  • How many moles in 6.92 L of SO2 gas at STP?
    8·1 answer
  • If the temperature of a gas increases, describe what should happen to the pressure of the gas. Assume the volume and amount of g
    7·1 answer
  • The body's nervous system is made up of the brain,the spinal cord, the retina ,and many other nerves. The circulatory system is
    13·2 answers
  • A sample of gas in a syringe has a volume of 9.66 mL at a pressure of
    12·1 answer
  • Convert 25 degrees Celsius to Farenheit.
    9·2 answers
  • CAN ANYONE SHARE 10 MEMES AND BAG THE BRAINLISST
    11·2 answers
  • What happens when Magnesium hydroxide is heated? (Decomposition)
    15·2 answers
  • If you have 50 grams of water, how many moles would that be?*
    12·1 answer
  • Differentiate between positive and negative deviation ~<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" titl
    11·1 answer
  • Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!