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
Ronch [10]
2 years ago
5

Describe the symmetry of a cubic crystal?

Chemistry
2 answers:
yKpoI14uk [10]2 years ago
8 0

Answer:

identifying repeatibg parts of molecules and simplifying both data collected and all calculations

alukav5142 [94]2 years ago
4 0

Answer:

It is an imaginary plane which passes through the molecule and divides it into portions which are exactly the superimposable mirror images of each other.

You might be interested in
The reform reaction between steam and gaseous methane (CH4) produces "synthesis gas," a mixture of carbon monoxide gas and dihyd
kenny6666 [7]

Answer:

The answer is "= 0.078 \ kg \ H_2".

Explanation:

calculating the moles in CH_4 =\frac{PV}{RT}

                                                =\frac{(0.58 \ atm) \times (923 \ L) }{ (0.0821 \frac{L \cdot atm}{K \cdot mol})(232^{\circ} C +273)}\\\\=\frac{(535.34 \ atm \cdot \ L) }{ (0.0821 \frac{L \cdot atm}{K \cdot mol})(505)K}\\\\=\frac{(535.34 \ atm \cdot \ L) }{ (41.4605 \frac{L \cdot atm}{mol})}\\\\= 12.9 \ mol

Eqution:

CH_4 +H_2O \to  3H_2+ CO \ (g)

Calculating the amount of H_2 produced:

= 12.9 \ mol CH_4 \times  \frac{3 \ mol \ H_2 }{1 \ mol \ CH_4}\times \frac{2.016 g H_2}{1 \ mol \ H_2}\\\\= 78 \ g \ H_2 \\\\= 0.078 \ kg \ H_2

So, the amount of dihydrogen produced = 0.078 \frac{kg}{s}

5 0
3 years ago
How many moles are in 2.5L of 1.75 M Na2CO3
Natasha_Volkova [10]

Answer:

4.4 mol.

Explanation:

Hello!

In this case, since the formula for calculating the molarity is:

M=n/V

Whereas n stands for moles and V for the volume in liters; we can solve for n as shown below when we are given the volume and the molarity:

n=V*M

Thus, we plug in the given data to obtain:

n=2.5L*1.75mol/L=4.4mol

Best regards!

4 0
2 years ago
Read 2 more answers
Which of the following mixtures may be act as a buffer solution?
lions [1.4K]

Answer:

B) HF, NaF

Explanation:

  • A buffer solution is made up of a weak acid and its conjugate base.
  • In this case, HF is a weak acid and NaF is the conjugate base, therefore the mixture of HF,  and NaF would make a perfect buffer solution.
  • The buffer would have the weak acid HF and its conjugate base, F- which comes from the soluble salt NaF.
4 0
3 years ago
A 5.0 L sample of gas at 300. K is heated to 600. K. What will the new volume of the gas be?
Ainat [17]

Answer:

V_2=10L

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to calculate the required new volume by using the Charles' law as a directly proportional relationship between temperature and volume:

\frac{V_2}{T_2} =\frac{V_1}{T_1}

In such a way, we solve for V2 and plug in V1, T1 and T2 to obtain:

V_2=\frac{V_1T_2}{T_1}\\\\V_2=\frac{5.0L*600K}{300K}\\\\V_2=10L

Regards!

4 0
2 years ago
What is the quantity of atoms in KMnO4 ?
tankabanditka [31]

Answer:

Potassium permanganate has a molar mass of 158.04 g/mol. This figure is obtained by adding the individual molar masses of <em><u>four oxygen atoms</u></em>, <em><u>one manganese atom</u></em> and <em><u>one potassium atom</u></em>

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • What coefficients would complete the equation,__K+__Cl2--&gt;__KCL
    7·1 answer
  • A student performs a titration procedure by adding NaOH to a solution that contains H+ ions. She added the indicator, phenolphth
    10·1 answer
  • Explain in terms of ions and molecules. what happens when any acid reacts with any alkali
    15·1 answer
  • A student wants to do scientific research on how aquatic plants in lakes have changed over time. What field of science does this
    15·1 answer
  • Compare the the volumes and densities of two pieces of lead: one with a mass of 25 g and the other with a mass of 75 g.
    12·1 answer
  • A) 5 days<br><br> b) 8 days<br><br> c) 9 days. i’m thinking maybe c <br><br> d) 11 days
    10·2 answers
  • Choose the BEST answer from the four options A, B, C, or D: Due to which property of LPG are we asked to close the valve of the
    6·1 answer
  • A student sets up a box with a flashlight that shines on a mirror located at position X. Other possible locations for objects in
    9·2 answers
  • How many grams of NaOH are there in 700.0 mL of a 0.18 M NaOH solution? *
    15·1 answer
  • You have a sample of 75.6 g of C3H8. How many moles of C3H8 are in the sample?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!