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BartSMP [9]
3 years ago
5

When delivering a presentation, pay attention to _____ and _____.

Chemistry
2 answers:
dexar [7]3 years ago
7 0

Answer:

believability and confidence

Explanation:

guapka [62]3 years ago
4 0

Answer:

I think the last one

Explanation:

The reason for that is because when you go up to present something you always want to try to hav believability and confidence.

You might be interested in
In what way do the oceans and the forests perform a similar function in the carbon cycle, under normal conditions?.
ikadub [295]

Both take carbon dioxide out of the atmosphere.

The ocean absorbs much of the carbon dioxide released when fossil fuels are burned. This extra carbon dioxide lowers the ocean's pH through a process called ocean acidification. Both are important elements for all life on earth. Relationship between the water cycle and the carbon cycle. The sun's energy drives both the carbon cycle and the water cycle.

Recall that sunlight water and carbon dioxide combine in green plants via photosynthesis to produce carbohydrates. The ocean also regulates the Earth's climate. They determine the weather by telling temperatures and determining rainfall, droughts, and floods. It is also the world's largest carbon sink, with an estimated 83% of the global carbon cycle circulating in seawater.

Learn more about The carbon cycle here:-brainly.com/question/1194643

#SPJ4

8 0
2 years ago
Which is the least active family
xz_007 [3.2K]
Is it multiple choice if so can you put them down

7 0
3 years ago
Read 2 more answers
What is the name of the compound with the formula NH HCO3 ?
svet-max [94.6K]

Answer:

Acid ammonium carbonate // Ammonium bicarbonate.

Explanation:

Hello, a 4 is missing in the fist H, thus:

NH_4HCO_3

The presence of the hydrogen between the ammonium and the carbonates characterizes the salt as an acid salt, so you could name it as acid ammonium carbonate or ammonium bicarbonate (similar to the sodium bicarbonate which is NaHCO_3).

Best regards.

6 0
3 years ago
“If you start with a faster forward reaction, you will end up with more __________.”
Finger [1]

Answer:

time to do another things !

Explanation:

Here we can not fill in the blank the words like: products, because in many cases, a slower forward reaction can give the better quantity of products.

We can not say that a faster forward reaction gives the products with better quality, because it depend on what are the reactions we mention about.

Personally, I think this is the answer for this question.

It seems that something is missing in this question.

7 0
3 years ago
Calculate the percent ionization of nitrous acid in a solution that is 0.230 M in nitrous acid. The acid dissociation constant o
djyliett [7]
Ok first, we have to create a balanced equation for the dissolution of nitrous acid.

HNO2 <-> H(+) + NO2(-)

Next, create an ICE table

           HNO2   <-->  H+        NO2-
[]i        0.230M          0M       0M
Δ[]      -x                   +x         +x
[]f        0.230-x          x           x

Then, using the concentration equation, you get

4.5x10^-4 = [H+][NO2-]/[HNO2]

4.5x10^-4 = x*x / .230 - x

However, because the Ka value for nitrous acid is lower than 10^-3, we can assume the amount it dissociates is negligable, 

assume 0.230-x ≈ 0.230

4.5x10^-4 = x^2/0.230

Then, we solve for x by first multiplying both sides by 0.230 and then taking the square root of both sides.

We get the final concentrations of [H+] and [NO2-] to be x, which equals 0.01M.

Then to find percent dissociation, you do final concentration/initial concentration.

0.01M/0.230M = .0434 or 

≈4.34% dissociation.
8 0
3 years ago
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