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serg [7]
4 years ago
8

Describe the physical and chemical changes that take place during digestion

Chemistry
1 answer:
DENIUS [597]4 years ago
3 0
Physical: food turns into our feces
Chemical: water turns into urine, food digest,
(honestly I think those are the answers)
You might be interested in
Need help ASAP!<br><br> How many moles of sodium nitrate are in 0.25 L of 1.2 M NaNO3 solution?
Setler79 [48]

Answer:

\boxed {\boxed {\sf 0.3 \ mol \ NaNO_3}}

Explanation:

Molarity is a measure of concentration in moles per liter.

molarity= \frac{moles \ of \ solute}{liters \ of \ solution}

The molarity of the solution is 1.2 M NaNO₃ or 1.2 moles NaNO₃ per liter. There are 0.25 liters of the solution. The moles of solute are unknown, so we can use x.

  • molarity= 1.2 mol NaNO₃/L
  • liters of solution=0.25 L
  • moles of solute =x

1.2 \ mol \ NaNO_3/L= \frac{x}{0.25 \ L}

We are solving for x, so we must isolate the variable, x. It is being divided by 0.25 liters. The inverse of division is multiplication, so we multiply both sides by 0.25 L.

0.25 \ L *1.2 \ mol \ NaNO_3/L=\frac{x}{0.25 \ L} *0.25 \ L

0.25 \ L *1.2 \ mol \ NaNO_3/L=x

The units of liters cancel, so we are left with the units moles of sodium nitrate.

0.25  *1.2 \ mol \ NaNO_3=x

0.3 \ mol \ NaNO_3=x

There are 0.3 moles of sodium nitrate.

3 0
3 years ago
above shows a balloon full of gas which has a volume of 120.0ml at 300.0k assuming pressure remains constant , what is the voume
trasher [3.6K]

128 ml  is the voume of the balloon if the temperature of the gas increases to 320.0k.

Explanation:

given that:

T1 (initial temperature) = 300K

V1 ( initial volume) =  120ml

T2 (final temperature) = 320 K

V2 (final volume) = ?

Pressure remained constant throughout the process.

From the equation

\frac{P1V1}{T1} = \frac{P2V2}{T2}

Since pressure is constant the equation will be:

\frac{V1}{T1} = \frac{V2}{T2}

V2 = \frac{V1 X T2}{T1}

    Putting the values in the above formula:

V2 = \frac{120 X 320}{300}

     = 128 ml

128 ml is the volume of the gas if temperature increases from 3OO K to 320k

4 0
3 years ago
Which term refers to the number of moles of solute per liter of solution?
scoray [572]

Answer:

molarity

Explanation:

6 0
3 years ago
Which is NOT a property of metals?
frutty [35]
C is not a property of metals
3 0
3 years ago
I'm doing a adopt a element project and I need a slogan for bismuth please tell me a good one
trapecia [35]

Bismuth, it’s elemental!

Bismuth, Agent 83

Bismuth, what a catalyst?

I like you more than Bismuth

Bismuth, we love you

Get things done with Bismuth

It’s a Bismuth thing, you wouldn’t understand

Bismuth, it’s a brittle thing

Got Bismuth?

Bi Bro

Bismuth born Brittle

Silvery by default like Bismuth

Bi the one with Bismuth


http://www.bestslogans.com/list-ideas-taglines/periodic-table-bismuth-slogans/


https://sloganshub.org/bismuth-slogans/

6 0
3 years ago
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