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MA_775_DIABLO [31]

2 years ago

5

IF ANYONE WOULD HELP ME AS FAST AS POSSIBLE CAUSE I HAVE TO SUBMIT THIS AT 11:59 and I wanna finish early to study for my quiz s

o if anyone could help me fast I would give you 20 Points

2 answers:

harina [27]2 years ago

8 0

I think the answers are box #1 and #3. It is number one for a fact. However, it depends where the start is at #3.

8_murik_8 [283]2 years ago

6 0

A and D are true.

B and C aren't.

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Compare and contrast formation of with the formation of mgcl2

zalisa [80]

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2 years ago

what is the value of the constant for a second order reaction if the reactant concentration drops from .657 M to ,0981 M in 17 s

yaroslaw [1]

Answer : The value of the constant for a second order reaction is, $0.51M^{-1}s^{-1}$

Explanation :

The expression used for second order kinetics is:

$kt=\frac{1}{[A_t]}-\frac{1}{[A_o]}$

where,

k = rate constant = ?

t = time = 17s

$[A_t]$ = final concentration = 0.0981 M

$[A_o]$ = initial concentration = 0.657 M

Now put all the given values in the above expression, we get:

$k\times 17s=\frac{1}{0.0981M}-\frac{1}{0.657M}$

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Therefore, the value of the constant for a second order reaction is, $0.51M^{-1}s^{-1}$

6 0

2 years ago

Liam throws a water balloon horizontally at 8.2 m/s out of a window 18 m from the ground.

Alecsey [184]

Time taken by the water balloon to reach the bottom will be given as

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here we know that

$h = 18 m$

$g = 9.8 m/s^2$

now by the above formula

$18 = \frac{1}{2}*9.8* t^2$

$18 = 4.9 t^2$

$t = 1.92 s$

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3 years ago

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Neko [114]

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Explanation:

Three significant figures

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3 years ago

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OlgaM077 [116]

Our Earth budget is how much energy we receive from the sun.
So the best answer is A

7 0

2 years ago

Read 2 more answers