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olchik [2.2K]
2 years ago
14

I NEED HELP, PLEASE AND THANK YOU! <3

Chemistry
2 answers:
Basile [38]2 years ago
8 0

Answer:allow for greater chances for a sentinel event

Explanation:

sergeinik [125]2 years ago
7 0

Answer:

The last one

Explanation:

To much eye contact may cause discomfort to the patient. I mean like looking at the client is good but with out a blink breaking is weird.

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A 20.0 milliliter sample of 0.200 molar K₂CO₃ solution is added to 30.0 milliliters of 0.400 molar Ba(NO₃)₂ solution. Barium car
sveticcg [70]

Answer:

0.32M

Explanation:

<u>Step 1:</u>  Balance the reaction

K2CO3 + Ba(NO3)2 ⇔ KNO3 + BaCO3

We have a 20 mL 0.2 M K2CO3 and a 30mL 0.4M Ba(NO3)2 solution

SinceK2CO3 is the limiting reactant, there will remain Ba(NO3)2 after it's consumed and produced KNO3 + BaCO3

<u>Step 2: </u>Calculate concentration

To find the concentration of the barium cation we use the following equation:

Concentration = moles of the <u>solute</u> / volumen of the <u>solution</u>

<u />

<u>[Ba2+] </u> = (20 * 10^-3 * 0.2M + 30 * 10^-3 * 0.4M) / ( 20 + 30mL) *10^-3

[Ba2+] = 0.32 M

The concentration of Barium ion in solution is 0.32 M

6 0
2 years ago
What are the reactants in a neutralization reaction?
castortr0y [4]

answer an element and a compound

8 0
3 years ago
But you're so prideful, yeah, prideful
lara31 [8.8K]

Answer:

was there a question you needed help with?

5 0
2 years ago
Giving brain thing.
Over [174]
I think the correct answer is C
7 0
3 years ago
A gas is contained in a thick-walled balloon. When the pressure changes from 45.0 bar to 96.0 bar, the volume changes from 1.20
notsponge [240]

P1 * V1 ÷ T1 = P2 * V2 ÷ T2  

45 * 1.20 ÷ 314 = 96 * V2 ÷ 420  

30,144 * V2 = 22,680  

V2 = 22,680 ÷ 30,144  

The new volume is approximately 0.75 liter.

I hope I helped

5 0
3 years ago
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