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3 years ago

Radiation, Chemical agents and Viruses.

Chemistry

2 answers:

zmey [24]3 years ago

7 0

Radiation, Chemical agents and viruses may all cause C. Generic Mutations.

klasskru [66]3 years ago

5 0

I think the correct answer from the choices listed above is option C. Radiation, Chemical agents and Viruses may cause genetic mutations. These substances are known to have mutagenic effects to humans. As you look at MSDS of some chemical agents you can see these effects. Long exposure to radiation are said to bring this effect. Lastly, viruses can influence genetics.

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2 HI(g) ⇄ H2(g) + I2(g) Kc = 0.0156 at 400ºC 0.550 moles of HI are placed in a 2.00 L container and the system is allowed to rea

Alex_Xolod [135]

Answer: The concentration of hydrogen gas at equilibrium is 0.0275 M

Explanation:

Molarity is calculated by using the equation:

$\text{Molarity}=\frac{\text{Number of moles}}{\text{Volume of solution (in L)}}$

Moles of HI = 0.550 moles

Volume of container = 2.00 L

$\text{Initial concentration of HI}=\frac{0.550}{2}=0.275M$

For the given chemical equation:

$2HI(g)\rightleftharpoons H_2(g)+I_2(g)$

Initial: 0.275

At eqllm: 0.275-2x x x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[H_2][I_2]}{[HI]^2}$

We are given:

$K_c=0.0156$

Putting values in above expression, we get:

$0.0156=\frac{x\times x}{(0.275-2x)^2}\\\\x=-0.0458,0.0275$

Neglecting the negative value of 'x' because concentration cannot be negative

So, equilibrium concentration of hydrogen gas = x = 0.0275 M

Hence, the concentration of hydrogen gas at equilibrium is 0.0275 M

4 0

3 years ago

The dissolution of barium hydroxide in water is an exothermic process. Which of the following statements is correct?A) The entha

madreJ [45]

Answer:

Explanation:

An exothermic reaction is one in which heat is liberated to the surrounding by a reaction.In this case,the enthalpy of the product is less than that of the reactant and such a reaction has a negative enthalpy (ΔH).

8 0

4 years ago

Read 2 more answers

If an electrostatically charged object is placed near other objects, which of the following will occur? Select all that apply. I

Alja [10]

Answer:

As the electrostatically charged object is to be placed in the field of charged particles it will be attracted to those who would be of oppositely charged and repelled by the same charged particles. phenomenon of like charges repel and opposite charges attract each other will be carried out and no deflection will be shown by the charge towards the neutral charge.

5 0

3 years ago

Read 2 more answers

What is the current produced when a 12-Volt battery encounters a resistance of 20 Ohms?

Verdich [7]

Answer:

Explanation:

V = IR

I = V/R

I = (12V)/(20Ω)

I = 0.6 A

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