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2 years ago

During El Niño years, why is Christchurch, New Zealand’s temperature cooler than usual?

Chemistry

1 answer:

valina [46]2 years ago

3 0

Answer:

It's probably claim 3

Explanation:

It's not claim 1 because the amount of energy from the sun can't change and claim 2 doesn't really make sense.

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Calculate the pH of a buffer prepared by mixing 20.0 mL of 0.10 M acetic acid and 55.0 mL of 0.10 M sodium acetate

MatroZZZ [7]

Answer:

Calculate the pH of a buffer prepared by mixing 30.0 mL of 0.10 M acetic acid and 40.0 mL of 0.10 M sodium acetate.

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3 years ago

What are the periodic trends of ionic radii? Check all that apply.

Troyanec [42]

Atomic radii increase when going down a group and decreases when going towards the anion periods. So A and D.

6 0

3 years ago

Read 2 more answers

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

PLEASE HELP DUE IN 1 HOUR

NARA [144]

Answer:

All the carbon will combust with atmospheric oxygen to form carbon dioxide. This means that the charcoal present will become consumed to form colorless carbon dioxide gas.

Explanation:

8 0

2 years ago

4. In the following, how many digits should be in the solution to have the proper number of sig figs?

yan [13]

Answer:

i guess b maybe the answer

4 0

2 years ago