All categories

3 years ago

PLEASE HELP ASAP!!! Best Answer gets Brainliest!!!

2 answers:

8 0

1)is an international treaty which extends the 1992 United Nations Framework Convention on Climate Change

2)you have to get checked for greenhouse gases.,car checks(Smog)

3)i think that is is a good thing.

Stella [2.4K]3 years ago

4 0

BOIIIIIIIIIIIIIIIIIIIIIIIIIIIII

You might be interested in

How many neutrons in beryllium

zimovet [89]

Answer:

There are 5 neutrons in beryllium

6 0

3 years ago

Read 2 more answers

What is the SI Unit used to measure the temperature of a substance?

ser-zykov [4K]

Answer:

kelvin

Explanation:

google

5 0

3 years ago

Read 2 more answers

Is sodium laureth sulfate ionic or covalent?

stepladder [879]

Answer: Covalent

Explanation:

7 0

4 years ago

What is a maximum negative displacement of a wave

AnnZ [28]

The maximum negative displacement of a wave is the same as its amplitude.

As a wave travels through space, its particles are sometimes above the

x-axis (+) and sometimes below it (-).

The maximum displacement from the axis is the amplitude of the wave.

The amplitude of the wave is the same in both the positive and negative directions.

5 0

3 years ago

Consider the following unbalanced chemical equation. C5H12(l) + O2(g) → CO2(g) + H2O(l) If 21.9 grams of pentane (C5H12) are bur

Marina CMI [18]

Answer : The mass of water produced will be 32.78 grams.

Explanation : Given,

Mass of $C_5H_{12}$ = 21.9 g

Molar mass of $C_5H_{12}$ = 72.15 g/mole

Molar mass of $H_2O$ = 18 g/mole

First we have to calculate the moles of $C_5H_{12}$ .

$\text{Moles of }C_5H_{12}=\frac{\text{Mass of }C_5H_{12}}{\text{Molar mass of }C_5H_{12}}=\frac{21.9g}{72.15g/mole}=0.3035moles$

Now we have to calculate the moles of $H_2O$ .

The balanced chemical reaction will be,

$C_5H_{12}(l)+8O_2(g)\rightarrow 5CO_2(g)+6H_2O(l)$

From the balanced reaction we conclude that

As, 1 mole of $C_5H_{12}$ react to give 6 moles of $H_2O$

So, 0.3035 moles of $C_5H_{12}$ react to give $0.3035\times 6=1.821$ moles of $H_2O$

Now we have to calculate the mass of $H_2O$ .

$\text{Mass of }H_2O=\text{Moles of }H_2O\times \text{Molar mass of }H_2O$

$\text{Mass of }H_2O=(1.821mole)\times (18g/mole)=32.78g$

Therefore, the mass of water produced will be 32.78 grams.

3 0

3 years ago