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Greeley [361]
3 years ago
14

Properties that can be seen through direct observation are called

Chemistry
1 answer:
ololo11 [35]3 years ago
5 0

They are sometimes called inert gases. characteristics of matter that can be seen through direct observation such as density, melting point, and boiling point. Characteristics of matter that can only be observed when one substance changes into a different substance, such as iron into rust.

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The reaction A + 2B → products was found to follow the rate law: rate = k[A] 2[B]. Predict by what factor the rate of reaction w
Alexus [3.1K]

Answer:

By a factor of 12

Explanation:

For the reaction;

A + 2B → products

The rate law is;

rate = k[A]²[B]

As you can see, the rate is proportional to the square of the concentration of  A  and the of the concentration of  B .

Let's say initially, [A] = x, [B] = y

The rate law in this case is equal to;

rate1 = k. x².y

Now you double the concentration of A and triple the concentration of B.

[A] = 2x, [B] = 3y

The new rate law is given as;

rate2 = k . (2x)². (3y)

rate2 = k . 4x² . 3y

rate2 = 12 k . x² . y

Comparing rate 2 and rate 1, the ratio is given as; rate 2/ rate 1 = 12

Therefore the rate has increased by a factor of 12.

5 0
3 years ago
Do you think “doing the wave” is a wave? Why or why not?
zmey [24]

Answer:

i mean kinda they should throw people in the air tho lol

Explanation:

3 0
4 years ago
Identify the FALSE statement. You could summarize our Solar System's development by saying that Choose one:
irina [24]

Answer:

D. It formed solely from atoms generated by the Big Bang.

Explanation:

From the history of the earth and it's solar system, options A to C are all correct ways of summarizing the Solar System's development. Because they have been proven to be in sync with reality of the solar system whereas the Bing bang theory has not done so as we know it says the universe was birthed from a huge explosion called big bang.

4 0
3 years ago
a compound with the empirical formula CH2 has a molar mass of 112 g/mol. What is the molecular formula for this compound?
miv72 [106K]
Hope it cleared your doubt :-D

5 0
3 years ago
Nnbvcvbnm,.,mnbvcxcvbjklkjhvbn
pav-90 [236]
This are letters of the alphabet some are periods and some are commas also they do not form any words or meaning
hope this helped ;)
3 0
3 years ago
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