2 years ago

According to kinetic theory, which two factors are important for a successful reaction to occur?

1 answer:

6 0

Answer:

Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation.

Explanation:

A collision that meets these two criteria, and that results in a chemical reaction, is known as a successful collision or an effective collision.

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When you multiply (2.2500x10^3) x (3.00 x10^5) =675,000,000 report this answer to decimal using scientific notation

zavuch27 [327]

Answer:

$6.75\times 10^{8}$

Explanation:

(2.2500x10^3) x (3.00 x10^5)

First add the power values since all are to power 10 hence this will be 3+5=8

Then multiply the digit intergers ie 2.25*3=6.75

Therefore, in scientific notation this will be represented as $6.75\times 10^{8}$

8 0

4 years ago

A train travels 100 km to reach town A in one hour and 15 min. The train stops at station A for 45 minutes. Then it travels 150

myrzilka [38]

Answer: 62.5 km/hour is the average velocity of the train.

Explanation:

Displacement of the train = 100 km + 150 km = 250 km

Total time train took =1 hour 15 min+ 45 min + 2 hours = 240 min = 4 hours

Average velocity= $\frac{Displacement}{time}=\frac{250 km}{4 hour}=62.5 km/h$

62.5 km/hour is the average velocity of the train.

4 0

3 years ago

g When a thin-filament light bulb is connected to two 1.6 V batteries in series, the current is 0.075 A. What is the resistance

larisa [96]

Answer:

R = 42.67 ohms

Explanation:

It is given that, a thin-filament light bulb is connected to two 1.6 V batteries in series, the current is 0.075 A.

It means that when two batteries are connected in series, then the total voltage is 3.2 volts

Let R is the resistance of the glowing thin-filament bulb. So, using Ohm's law we get :

$V=IR\\\\R=\dfrac{V}{I}$

So,

$R=\dfrac{3.2}{0.075}\\\\R=42.67\ \Omega$

So, the resistance of the bulb is 42.67 ohms.

5 0

3 years ago

Please help!! This is about chemicals

svetoff [14.1K]

A Is correct I believe

3 0

3 years ago

What happens when two minerals have different arrangements of Atoms

zaharov [31]

The overall arrangements of the atoms produce crystals

5 0

3 years ago