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oksian1 [2.3K]
2 years ago
11

What is the formula for this ionic crystal?

Chemistry
1 answer:
mafiozo [28]2 years ago
3 0
69 nice hoemmdmdmdkdjd
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A tire at 21ÁC has a pressure of 0.82 atm. Its temperature decreases to _3.5ÁC. If there is no volume change in the tire, what i
amid [387]
Volumen = constant => P/T = constant

T1 = 21°C + 273.15 = 294.15 k
P1 = 0.82 atm

T2 = - 3.5°C + 273.15 = 269.65 k
P2 = ?

P2 / 269.65k = 0.82atm / 294.15k

P2 = [0.82atm / 294.15k] * 269.65kg = 0.75 atm
3 0
3 years ago
Carlos uses a machine to decrease his force Which of the following statements is true?
Korolek [52]

I believe the answer is is that his machine must increase the distance the object moves.

3 0
3 years ago
CONVERT 2 MOL OF OXYGEN TO ATOMS.<br><br>PLeasee...?
kiruha [24]

Answer:

1.2044 × 10^24 oxygen atoms

Explanation:

To convert from moles to atoms, simply multiply the number of moles by Avogadro's number, 6.022 × 10^23

2 × 6.022 × 10^23

=1.2044 × 10^24

4 0
3 years ago
1. (8 pts) Consider if the initial unknown acid solution used in this experiment started out more dilute. Predict any difference
malfutka [58]

Answer:

The answers are in the explanation

Explanation:

- Initial pH: An acid solution more dilute has a higher pH because concentration of H⁺ decreases.

- pH at the half‐equivalence point: In a titration curve. The pH at the half-equivalence point will be higher because the initial pH is higher and the equivalence point pH is the same.

- NaOH volume needed to reach the equivalence point: As the diulte solution has a higher pH, the NaOH volume you need is lower than original solution.

- pH at the equivalence point: The pH at the equivalence point will be always the same (pH = 7,0). Because is the pH where the total H⁺ of the acid were consumed.

I hope it helps!

5 0
3 years ago
Chem please help theres a photo attatched
a_sh-v [17]

Answer:

the top one is 100.000 and bottom one is 100.000

Explanation:

8 0
2 years ago
Read 2 more answers
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