3 years ago

Why are there 24 hours in 1 day?

Chemistry

2 answers:

Sloan [31]3 years ago

4 0

Because there are 60 mins in an hour

LuckyWell [14K]3 years ago

3 0

Answer:

idfk

Explanation:

cause God made it that way

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You are given a sulfuric acid solution of unknown concentration. You dispense 10.00 mL of the unknown solution into an Erlenmeye

dmitriy555 [2]

Answer:

"0.053457 M" of sulfuric acid.

Explanation:

The given values are:

$V$ = 10 mL solution

$V_{added}$ = 12.20 mL

$V_{total}$ = 22.20 mL

then,

M 0.103 M of NaOH,

$V_{rinsed}$ = experiment will not be affected

$V_{total \ base}$ = 10.38 mL

Now,

⇒ mol of NAOH = MV

= $0.103\times 10.38$

= $1.06914 \ m$

Whether Sulfuric acid, then

⇒ $H_{2}SO_{4} + 2NaOH = Na_{2}SO_{4} + 2H_{2}O$

⇒ $mol \ of \ acid =\frac{1}{2}\times \ mol \ of \ base$

⇒ $1.06914 \ m \ mol \ of \ base = \frac{1}{2}\times 1.06914 = 0.53457 \ m \ mol \ of \ acid$

Before any dilution:

$V_{sample} = 10 \ mL$

⇒ $M \ acid = \frac{m \ mol}{V}$

$=\frac{ 0.53457 }{10}$

$=0.053457 \ M$ (Sulfuric acid)

6 0

3 years ago

PLEASE ANSWER ASAP

marta [7]

Its an inelastic collision because the force from the bat causes it to bounce back. It is also an elastic force because catching the ball call for the energy of the ball to be deformed and restored into the mitt.

8 0

3 years ago

What mineral is this? Egg-sized piece. Transparent pink color with glassy luster. Shows conchoidal fracture. The hardness is 7.

fgiga [73]

ruby

Explanation:

because it's ruby

8 0

3 years ago

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Coffee is an example of a

Gwar [14]

Answer:

I think it is mixture and of chemical reaction

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3 years ago

Which is a homogeneous ? Salad dressing ? Granola cereal ? Soil ? Milk?

IgorC [24]

the answer should be salad dressing

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3 years ago

Why are there 24 hours in 1 day? ​

Why are there 24 hours in 1 day?