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Maksim231197 [3]
4 years ago
6

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

s the deceleration (negative acceleration) of the dragster?
acceleration=___________m/s2
Chemistry
1 answer:
astra-53 [7]4 years ago
8 0

Answer:

I think the answer is -8.9 m/s2

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If 0.5 L of O2(g) reacts with H, to produce 1 L of H2O(g), what is the volume of
maks197457 [2]

Answer:

2 L

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

2H₂ + O₂ —> 2H₂O

From the balanced equation above, we can see clearly that 1 L of O₂ reacted to 2 L of H₂O.

This implies that 2 L of H₂O can be obtained by the reaction of 1 L of O₂.

Thus, option 3 gives the correct answer to the question.

4 0
3 years ago
The reaction below virtually goes to completion because cyanide ion forms very stable complexes with Ni2+ ion:[Ni(H2O)6]2+(aq) +
NeX [460]

Answer:

Option A and D are correct.

Unstable species react rapidly.

Stable species do not react rapidly.

Explanation:

The complete question is attached to this solution.

The more stable a reactant is, the less reactive it will be. A stable reactant has a very stable structure in which it will avoid any perturbations. And for a reaction to occur, the bonds in the reactant must break down to form the products. A stable reactant has very strong bonds that aren't easy to break down, hence, reactions involving very stable reactants do not proceed rapidly.

And the more unstable a reactant specie is, the more rapidly it reacts. This is why the reaction involving the less stable isotope of carbon; Carbon-14 is very rapid. It is the same reason as explained above that is responsible for this. The bond between unstable species are not strong and are easily breakable, thereby leading to a quick reaction.

Hope this Helps!!!

6 0
3 years ago
When naming bases, you add ___ to the end
dangina [55]

Answer:

hydroxide ion

Explanation:

because base produce hydroxide ion when dissolved in water

6 0
3 years ago
I will give brainliest if answer is good
noname [10]
Microwaves use radiant energy to cook the food. They also use electrical to make the microwave work.
4 0
4 years ago
Read 2 more answers
Question 2 of 5
alex41 [277]
Precision relates to how close the answers are to each other, so I’d think it would be D because of the limited range between data points.
7 0
3 years ago
Read 2 more answers
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