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AnnyKZ [126]
4 years ago
11

Which sentence best describes how scientists plan out their experiments?

Chemistry
2 answers:
malfutka [58]4 years ago
8 0

Answer:

D

Explanation:

elena55 [62]4 years ago
6 0
The answer is d you do you question
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For the reaction: 2 H2 + 2 NO → N2 + 2 H2O the observed rate expression, under some conditions, is: rate = k[H2][NO]2 Which of t
Andrew [12]

Answer:

Step 1 H2 + 2 NO → N2O + H2O (slow)

step 2 N2O + H2 → N2 + H2O (fast)

Explanation:

It is known that the slowest step in a reaction is the rate determining step in a sequence of reactions (reaction mechanism).

We have two important pieces of information in the question to guide our decision making process.

The overall reaction equation, and the rate expression. The two;

2 H2 + 2 NO → N2 + 2 H2O and rate = k[H2][NO]2 all support the answer given above.

8 0
4 years ago
If the [H3O+] of a solution is 1x 10-8 mol/L the [OH-] is
Studentka2010 [4]

Answer:

<em>(H30+)= 1x10^-6 M</em>

Explanation:

Both pH and pOH have a relationship to belonging to the same aqueous solution: the expression of the Kwater (ionic product of the water Kw) is used:

1x 10-8 mol/L equals to1x10-8 M

(H3O+) x (OH-) = 1x10^-14

(H30+)x 1x 10^-8 =1x10^-14

(H30+)= 1x10^-14/1x 10^-8

<em>(H30+)= 1x10^-6 M</em>

6 0
4 years ago
If you had 1.50 g of ZnSO4.7H20, zinc sulfate septahydrate, how many grams of water will there be?
MariettaO [177]

Answer:

There will be 1.50 gram of water

5 0
3 years ago
PLEASE HELP ASAP!!!! MUST ANSWER ALL PARTS TO RECIEVE CREDIT!!!!
Vera_Pavlovna [14]
The difference between speed and velocity is that speed is the time rate at which an object is moving along a path. While velocity is the rate and direction of the object’s movement.

if something is travelling at a constant velocity are the forces balanced or unbalanced?
Unbalanced

if something changes motion, are forces balanced or unbalanced?
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what are the three ways to accelerate?
1. A change in velocity
2. A change in direction
3. A change in both velocity and direction

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3 years ago
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what is that????????????????

7 0
4 years ago
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