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3 years ago

Burning fossil fuels causes atmospheric pollution write one effect for each pollutant in table 2.

Chemistry

1 answer:

vekshin13 years ago

8 0

Fossils come from dinosaurs that all I know I mean I’m an idiot

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How is a cation different from a anion

masya89 [10]

Cation means a positively charged ion. Anion is a negative one

5 0

3 years ago

If I initially have 4.0 L of a gas at a pressure of 1.1 atm and a temperature of 298 K, what will the volume be if I increase th

DochEvi [55]

Answer:

1.34L

Explanation:

1 torr = 0.00132atm

P2= 2584torr = 3.41atm

T2= 37°C = 273+37 = 310K

Using combined gas law

P1V1/T1 = P2V2/T2

(1.1×4.0)/298 = (3.41 × V2)/310

V2= (1.1×4×310)/(298×3.41)

V2= 1.34L

4 0

3 years ago

Which statement describes the most likely result of a field being cleared to build homes?

Anna35 [415]

Answer:

Biodiversity will decrease.

Explanation:

The likely result of clearing the fields for building homes is that biodiversity will decrease.

Biodiversity is the variation in life forms within a particular area.

The balance of the ecosystem is easily tripped by the influence of human activities.
Some habitats are easily destroyed when new fields are cleared.
Habitat loss is huge problem, in the ecosystem as a result of human activities.

6 0

3 years ago

A student titrated 20 ml of 0.410 m hcl with 0.320 m naoh. determine the volume of naoh needed at equivalence point

Aleksandr-060686 [28]

Answer:

25.6mL NaOH

Explanation:

We are given the Molarity of the solution ( $\frac{moles}{liters}$ ) and the volume of the solution (.02L).

By multiplying the two together, we can find the moles of solution that are reacted with HCl.

$moles = \frac{.410 moles}{L} *.02L$

This gives us .0082 moles of HCl.

We then find the moles of NaOH that are needed to react with the HCl using the equation.

$HCl + NaOH = NaCl + H_{2} O$

As HCl and NaCl have a 1:1 ratio, we need .0082 mol of NaOH.

Dividing this value by the Molarity of the solution

$\frac{.0082mol}{.320mol/L}$

Gives us the answer, in Liters (.0256), which we can then divide by 100 convert to mL.

3 0

3 years ago

At a certain temperature, 0.700 mol SO3 is placed in a 3.50 L container. 2SO3(g)↽−−⇀2SO2(g)+O2(g) At equilibrium, 0.180 mol O2 i

Anestetic [448]

<u>Answer:</u> The value of $K_c$ for the given chemical equation is 0.0457.

<u>Explanation:</u>

Given values:

Initial moles of $SO_3$ = 0.700 moles

Volume of conatiner = 3.50 L

The given chemical equation follows:

$2SO_3(g)\rightleftharpoons 2SO_2(g)+O_2(g)$

I: 0.700

C: -2x +2x x

E: 0.700-2x 2x x

Equilibrium moles of $O_2$ = x = 0.180 moles

Equilibrium moles of $SO_2$ = 2x = $(2\times 0.180)=0.360moles$

Equilibrium moles of $SO_3$ = 0.700 - 2x = $0.700-(2\times 0.180)=0.340moles$

Molarity is calculated by using the equation:

$Molarity=\frac{Moles}{Volume}$

So,

$[SO_3]_{eq}=\frac{0.340}{3.50}=0.0971M$

$[SO_2]_{eq}=\frac{0.360}{3.50}=0.103M$

$[O_2]_{eq}=\frac{0.180}{3.50}=0.0514M$

The expression of $K_c$ for above equation follows:

$K_c=\frac{[SO_2]^2[O_2]}{[SO_3]^2}$

Plugging values in above expression:

$K_c=\frac{(0.0971)^2\times 0.0514}{(0.103)^2}\\\\K_c=0.0457$

Hence, the value of $K_c$ for the given chemical equation is 0.0457.

3 0

3 years ago