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3 years ago

Can somebody please balance this !?!

Mathematics

2 answers:

Lera25 [3.4K]3 years ago

4 0

$\mathrm{CO}_2$ has 2 oxygens for every carbon. $\mathrm{CO}$ will contribute one of each for every molecule. You then have to have an even multiple of $\mathrm{CO}$ molecules to not end up with an odd number of oxygens.

So if you take $2\mathrm{CO}$ , you should end up with 2 carbons on the RHS. $2\mathrm{CO}_2$ then has 4 oxygens. 2 of them are already accounted for, so you just need one $\mathrm O_2$ to balance out the reaction.

$1\mathrm O_2+2\mathrm{CO}\Rightarrow2\mathrm{CO}_2$

Marta_Voda [28]3 years ago

3 0

O2 + 2CO = 2CO2. That should be it

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Answer:

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2 years ago

Please find X when x÷20=5

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3 years ago

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A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,

guajiro [1.7K]

We have been given that a huge ice glacier in the Himalayas initially covered an area of 45 square kilo-meters. The relationship between A, the area of the glacier in square kilo-meters, and t, the number of years the glacier has been melting, is modeled by the equation $A=45e^{-0.05t}$ .

To find the time it will take for the area of the glacier to decrease to 15 square kilo-meters, we will equate $A=15$ and solve for t as:

$15=45e^{-0.05t}$

$\frac{15}{45}=\frac{45e^{-0.05t}}{45}$

$\frac{1}{3}=e^{-0.05t}$

Now we will switch sides:

$e^{-0.05t}=\frac{1}{3}$

Let us take natural log on both sides of equation.

$\text{ln}(e^{-0.05t})=\text{ln}(\frac{1}{3})$

Using natural log property $\text{ln}(a^b)=b\cdot \text{ln}(a)$ , we will get:

$-0.05t\cdot \text{ln}(e)=\text{ln}(\frac{1}{3})$

$-0.05t\cdot (1)=\text{ln}(\frac{1}{3})$

$-0.05t=\text{ln}(\frac{1}{3})$

$t=\frac{\text{ln}(\frac{1}{3})}{-0.05}$

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-0.05\cdot 100}$

$t=\frac{\text{ln}(\frac{1}{3})\cdot 100}{-5}$

$t=-\text{ln}(\frac{1}{3})\cdot 20$

$t=-(\text{ln}(1)-\text{ln}(3))\cdot 20$

$t=-(0-\text{ln}(3))\cdot 20$

$t=20\text{ln}(3)$

Therefore, it will take $20\text{ln}(3)$ years for area of the glacier to decrease to 15 square kilo-meters.

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3 years ago

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ki77a [65]

Answer:

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Because the function goes in the downward direction on both sides, it would be negative infinity for both.

It's basically saying, as the x values go towards the positives, the y values go towards the negatives

and as the x values go towards the negatives, the y values go towards the negatives.

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1 year ago

The area of a triangle is 45.5 cm2 and the base is 10 cm.

blondinia [14]

The area of a triangle is A=1/2b*h
You have the base (b) and you have the area (A)
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Simplify it:
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Now solve for h
Divide by 5 to get h alone:
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Your height is 9.1cm
Hope this helps :)

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3 years ago

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