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butalik [34]
4 years ago
13

Each type of rock has distinguishing characteristics, such as a unique type of texture or a banded appearance. These characteris

tics tell us the type of environment in which that rock was formed. Question 5 options: True False
Chemistry
1 answer:
attashe74 [19]4 years ago
7 0

True

hope this helps, please mark brainliest :)

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Please answer, this is due in 30 minutes
notsponge [240]

Answer:

0.591 g of magnesium phosphate is the theoretical yield.

Magnesium nitrate is the limiting reactant.

Explanation:

Hello!

In this case, since the balanced reaction turns out:

3Mg(NO_3)_2+2Na_3PO_4\rightarrow Mg_3(PO_4)_2+6NaNO_3

Next, we compute the grams of magnesium phosphate yielded by each reactant, considering the present mole ratios and molar masses:

m_{Mg_3(PO_4)_2}^{by\ Mg(NO_3)_2}=1.00gMg(NO_3)_2*\frac{1molMg(NO_3)_2}{148.31gMg(NO_3)_2}*\frac{1molMg_3(PO_4)_2}{3molMg(NO_3)_2}  *\frac{262.86gMg_3(PO_4)_2}{1molMg_3(PO_4)_2} \\\\m_{Mg_3(PO_4)_2}^{by\ Mg(NO_3)_2}= 0.591gMg_3(PO_4)_2\\\\m_{Mg_3(PO_4)_2}^{by\ Na_3PO_4}=1.00gNa_3PO_4*\frac{1molNa_3PO_4}{163.94gNa_3PO_4}*\frac{1molMg_3(PO_4)_2}{2molNa_3PO_4}  *\frac{262.86gMg_3(PO_4)_2}{1molMg_3(PO_4)_2} \\\\m_{Mg_3(PO_4)_2}^{by\ Na_3PO_4} = 0.802gMg_3(PO_4)_2

Thus, we infer that the correct theoretical yielded mass is 0.591 g as magnesium nitrate is the limiting reactant for which it produces the fewest grams of product.

However, is not possible to compute the percent yield since no actual yield is given, and must be provided or indicated by the problem or an experiment and it not here, nevertheless, you may compute the percent yield by dividing the actual yield by the theoretical and then multiplying by 100:

Y=\frac{actual}{0.591g}*100\%

Best regards!

4 0
3 years ago
For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =
timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

2A(g)\rightleftharpoons B(g)

The expression for Q_p is written as:

Q_p=\frac{p_B}{(p_A)^2}

Q_p=\frac{(2.0)}{(2.0)^2}

Q_p=0.5

K_p=0.76

Thus as K_p>Q_p , the reaction will shift towards the right i.e. towards the product side.

7 0
3 years ago
What is the relationship between temperature and reaction rate?​
Alecsey [184]

Explanation:

Temperature has a direct relationship with reaction rate. The higher the temperature the faster the rate of reaction of a system.

  • For every 10°C rise in temperature above the room temperature, it has been found that reaction rates becomes double or triple.
  • When the temperature of a reacting system increases, the kinetic energy of each of the reacting particles increases.
  • The frequency of collision and effective collision also increases per unit of time.
  • Many of the reacting particles will acquire an energy greater than or equal to the activation energy of the reaction.
6 0
3 years ago
What is the velocity of a wave with a frequency of 10 Hz and a wavelength of<br> 2 m?
abruzzese [7]

Answer:

A wave with a frequency of 10 Hz and a wavelength of  2 m should have a velocity of 20 meters per second (m/s)

<em>Hope I Helped</em>

<em />

7 0
4 years ago
What is diffusion?<br>Class 9th <br>Chemistry <br><br><br><br><br>​
tester [92]

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration . Diffusion happens in liquids and gases because their particles move randomly from place to place . Diffusion is an important process for living things ; it is how substances move in and out of cells .

Pls follow me and Mark as brainlest :-)

6 0
3 years ago
Read 2 more answers
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