Please Help I need to finish this by the end of the day!

Answer:

[tex]Kp2=5.3967x10^{-5}[/tex]

Explanation:

Hello there!

In this case, since the Kp for the first reaction is given, according to the following equilibrium expression:

[tex]Kp=\frac{p_D^2p_E}{p_A^2p_Bp_C^3} =18530[/tex]

However, since the second reaction stands for the reverse of the initial one, the equilibrium expression would be:

[tex]Kp_2=Kp=\frac{p_A^2p_Bp_C^3}{p_D^2p_E}[/tex]

And therefore its Kp the inverse of the aforementioned one:

[tex]Kp2=1/18530\\\\Kp2=5.3967x10^{-5}[/tex]

Best regards!

Answer:In regards to writing the formula, we know that magnesium has a charge of 1+ and sulfate, SO4, has a charge of 1-. Sulfate is a polyatomic ion so the charge of the whole thing is (SO4)1-. When you combine them you end up with MgSO4 and the "heptahydrate" is seven water molecules.

Explanation:

Answer:

Iduno sorry po hsjsnaka

Answer:

Prisms are sometimes used for the internal reflection at the surfaces rather than for dispersion. If light inside the prism hits one of the surfaces at a sufficiently steep angle, total internal reflection occurs and all of the light is reflected.

Explanation:

Prism, in optics, piece of glass or other transparent material cut with precise angles and plane faces, useful for analyzing and reflecting light. An ordinary triangular prism can separate white light into its constituent colours, called a spectrum.

Molality = moles of solute/mass (in kg) of solvent

The solute here is NaCl, of which you have 40 g or 40/58.4428 = 0.6844 moles NaCl.

The solvent here is water, of which you have 1500 g or 1.500 kg H2O.

The molality of the resulting solution would thus be 0.6844 moles NaCl/1.500 kg H2O = 0.4562 mol/kg.

If you have to consider sig figs, then your final answer would have one sig fig (40 g has one sig fig). In that case, your final answer would be 0.5 mol/kg.

Answer:

The element is in group 7, the halogens. The element is in the third period or row of the table.

Explanation:

Chlorine is element number 17.

Answer:

Don't touch radioactive waste with bare hands

Don't eat the radioactive thing

Wear protective eyewear

Wear lab coat/gloves

Explanation:

https://ehs.princeton.edu/laboratory-research/radiation-safety/radioactive-materials/handling-radioactive-materials-safely

Princeton article

Answer:

See explanation

Explanation:

To convert from atm to mmHg

1 atm = 760 mmHg

0.799 atm = 0.799 atm * 760 mmHg/1 atm = 607.24 mmHg

To convert from atm to torr

1 atm = 760 torr

0.799 atm = 0.799 atm * 760 torr/1 atm = 607.24 torr

Answer:

The presence of a cell wall prevents the membrane from bursting,so cytolysis only occurs in animal and protozoa cells which do not have cell walls.

Explanation:

Answer:

9 moles

Explanation:

The balanced chemical equation for this decomposition reaction is as follows:

2KCIO3 → 2KCI+ 302

Based on this equation, 2 moles of potassium chlorate (KCIO3) decomposes to form 3 moles of oxygen gas (O2).

Hence, 6 moles of pottasium chlorate will decompose to produce;

6 × 3 ÷ 2

= 18 ÷ 2

= 9 moles of O2.

Answer:

what if we didn't have gas

Explanation:

Answer:

I think D

Explanation:

it has both H and G in the planes.

Answer:

because it was in the mixture

Explanation:

Answer:

2802.5 KJ/mol

Explanation:

Calculate standard enthalpy of the Reaction :

6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g)

using standard formation enthalpies . hence the standard enthalpy of the reaction = 2802.5 KJ/mol

attached below is the detailed solution

Answer:  The inner layers are the Core, Radiative Zone and Convection Zone.

The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona.

(phew! There you go!)

Answer:

Physical property

Explanation:

Change in state is a physical property of matter.

Answer:

Zinc mercury transition metal

Silicon boron metalloid

Oxygen nitrogen non metal

Sodium alkali metal

Explanation:

Answer:

true

Explanation:

i hope it's true, if not, then it's false, if anyone else answered but got it from the link, let me know to report it or you report it

Answer:

False.

Explanation:

Hibernation is an example of a physical adaptation. False.

Answer:

B. A scientific law describes what always happens under specific

conditions in nature.

Explanation:

Scientific law is something that has been proven over and over and therefore is always correct under conditions in nature.

Answer:

B. A scientific law describes what always happens under specific

conditions in nature.

Explanation:

Scientific law is based on observation and experiments to support a claim. It usually describes nature.  

Answer:

Option C is true to be honest

Answer:

i put c and got it wrong its b

Explanation:

Answer:

[tex]H_5N_5O_6[/tex]

Explanation:

Hello there!

In this case, for the determination of empirical formulas, it is firstly necessary to assume the given percentages of the constituent atoms as the masses so we can compute their moles in the formula:

[tex]n_N=\frac{35gN}{14.01g/mol} =2.5molN\\\\n_H=\frac{5g}{1.01 g/mol}=5molH\\\\n_O=\frac{60g}{16 g/mol} =3molO[/tex]

Thus, we need to divide the resulting moles, by the fewest ones (those of nitrogen) in order to determine the coefficients in the formula:

[tex]N:\frac{2.5}{2.5}=1\\\\H:\frac{5}{2.5}=2\\\\O:\frac{3}{2.5} =1.2[/tex]

However, we need to turn all these numbers, whole numbers, so we multiply by 5 to get:

[tex]H_5N_5O_6[/tex]

Best regards!

Answer: cashier

Explanation: because

The addition or subtraction of thermal energy. For example if you heat up an ice cube, it will melt to become water. If you heat it even more, it will evaporate.

Molarity= no. of moles of solute/ volume of solution(in L)

Molarity = 6.2 moles/ 2.5 L = 62/25 mol/L

= 2.48 mol/L

Time = distance ÷ speed

Time = 1950 ÷ 600

Time = 3.25 hours ( 3 hours 15 minutes )

Answer:

An example of a metal that rusts is Iron

Answer:

Iron

Explanation:

The metal that forms 2 types in moisture is iron.