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3 years ago

By definition, all acids are harmful for human beings. true or false

Chemistry

2 answers:

bixtya [17]3 years ago

7 0

Answer:

true

Explanation:

mel-nik [20]3 years ago

5 0

Answer:

False :<

Explanation:

Yes, alot of acids are harmful, but there are also acids such as oranges. :)

Hope this helps.

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58. A cylinder of a gas mixture used for calibration of blood gas analyzers in medical laboratories contains 5.0% CO2, 12.0% O2,

erica [24]

Answer and Explanation:

$Greetings!$

$Let's~answer~your~question!$

$Partial ~pressure ~of ~gas ~can ~be ~directly~ calculated ~by ~multiplying ~the~ percentage\\ of~ pressure~ of~ gases~ to ~the ~total ~pressure.$

$\boxed{Pgas~ = ~P~total~ * \% ~P ~of ~gas}$

For % of N2 gas: 

 $100\% - (5\% + 12\%) = 83\% ~N2$ 

 $PN_2 ~= ~146~ atm~ *~ 0.83 ~ = 121.18 ~atm$ 

 $PO_2 ~= ~146~ atm~ *~ 0.12~ = 17.52 ~atm$ 

 $~PCO_2~ = ~146~ atm ~* 0.05 = 7.3 ~atm$ 

3 0

3 years ago

Convert 22 ml in to liters

prisoha [69]

Answer:

0.022

Explanation:

milliter (ml) = 1 cubic centimeter (cc)= 0.001 liters (l) = 0.000001 cubic meters (m3).

1 ml = 0.061024 cubic inches (in3) ; 1 in3 = 16.4 ml.

1 ml = 0.000035 cubic feet (ft3); 1 ft3 = 28,317 ml.

1 ml = 2.64 x 10-4 U.S. gallons (gal); 1 gal = 4.55 x 103 ml.

8 0

2 years ago

Question 1

nordsb [41]

#1 B

#2 C

#3 B

#4 A.

I Just did this

8 0

2 years ago

One important function of the atmosphere is to provide the Earth and its people with the water needed for life.

exis [7]

False because that’s not it’s function

4 0

2 years ago

Which of the 4 macromolecules is the most important for a cell to carry out metabolism and maintain homeostasis?

azamat

Answer:

Carbs,lipids,proteins,nuclei acids

Explanation:

3 0

2 years ago