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Lera25 [3.4K]
3 years ago
11

What are the answered to both 1 and 2

Chemistry
1 answer:
baherus [9]3 years ago
7 0
By the lloks ofit you cant see it send a better picture
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A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What i
LiRa [457]

Answer:

- 8.89 m/s^{2}

Explanation:

\frac{(Vf-Vo)}{time} =  \frac{(45-85 m/s)}{4.5s} = - 8.89 m/s^{2}

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3 years ago
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16. What are the reactants in the equation?
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5. Iron and chlorine
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3 years ago
According to the collision theory, what two factors must be true for a given collision to successfully create products?
Rainbow [258]

Answer:

Sufficient concentration and correct orientation of particles

Explanation:

The collision theory postulates that, for a chemical reaction to occur, there must be collision between reacting particles.

It implies that the rate of reaction depends on the number of collisions per unit time as well as the fraction that are successful or effective.

For collisions to be effective, there must be proper orientation of the particles and right concentration of the reactants.

  • The number of effective collisions and rate of reaction are directly proportional to the concentration of of the reactants.
8 1
3 years ago
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How many formula units of silver fluoride, AgF, are equal to 42.15 g of this substance?
Wittaler [7]

Answer:

2.05 × 10²³ formula units

Explanation:

Given data:

Mass of AgF =  43.15 g

Number of formula units = ?

Solution:

Number of moles of AgF:

Number of moles = mass/ molar mass

Number of moles = 43.15 g/ 126.87 g/mol

Number of moles = 0.34 mol

Now Number of formula units will be determine by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number

1 mole = 6.022 × 10²³ formula units

0.34 mol × 6.022 × 10²³ formula units

2.05 × 10²³ formula units

4 0
4 years ago
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Which of the following BEST describes all planets in the universe?
Pie

Answer:

Option 1

Hope it helps!

7 0
3 years ago
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