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GarryVolchara [31]
2 years ago
14

I need the correct answer

Chemistry
2 answers:
zalisa [80]2 years ago
6 0

Answer:

d.

Explanation:

They can be spread through contaminated surfaces.

natulia [17]2 years ago
3 0

Answer:

d

Explanation:  pathogens csnnot be spread be sontaminated surfesec

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onvert the value of Kc to a value of Kp for the following reaction: N2(g)+3H2(g)⇌2NH3(g) Kc = 0.50 at 400 °C.
ale4655 [162]

Answer:

K_p= 0.00016

Explanation:

The relation between Kp and Kc is given below:

K_p= K_c\times (RT)^{\Delta n}

Where,  

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

N_2_{(g)}+3H_2_{(g)}\rightleftharpoons2NH_3_{(g)}

Given: Kc = 0.50

Temperature = 400^oC=[400+273]K=673K

R = 0.082057 L atm.mol⁻¹K⁻¹

Δn = (2)-(3+1) = -2

Thus, Kp is:

K_p= 0.50\times (0.082057\times 673)^{-2}

K_p= 0.00016

6 0
3 years ago
The natural tendence of an object to resist change in its state of motion is:
melisa1 [442]

Inertia. Inertia is the natural tendency of bodies to remain in their states of either rectilinear or resting motion.

5 0
2 years ago
What is 10% of 70 so I kmow
vaieri [72.5K]

10 x 70 = 100 x Part, or

700 = 100 x Part 

Now, divide by 100 and get the answer:

Part = 700 / 100 = <span>7</span>

7 0
3 years ago
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What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
scoundrel [369]
<span>The answer is synthesis. This is a kind of reaction in which numerous reactants mix to make a single product. Synthesis responses discharge energy in the way of heat and light, so they are exothermic. An instance of a synthesis reaction is the creation of water from hydrogen and oxygen.</span>
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3 years ago
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What law determines that chemical equations must be balanced? What does this law say?
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This is seen in the first law of Thermodynamics stating that matter and energy cannot be destroyed nor created.
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3 years ago
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