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Kipish [7]
3 years ago
8

Alice needs to calculate the average pressure inside a gas cylinder. She has access to both a data table showing the pressure ov

er time and a graph of pressure over time. Which representation is probably most useful to her if she wants a precise answer?
Chemistry
2 answers:
Stella [2.4K]3 years ago
7 0
I don’t know but I will find iut
Gwar [14]3 years ago
5 0

The answer is Data Table.

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Write the net ionic equ.
Artyom0805 [142]

Answer:

a) AgNO3 + KI → AgI + KNO3

b) Ba(OH)2 + 2HNO3 → Ba(NO3)2 + 2H2O

c) 2Na3PO4  + 3Ni(NO3)2  → Ni3(PO4)2 + 6NaNO3

d) 2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

Explanation:

a) AgNO3 + KI → Ag+ + NO3- + K+ + I-

Ag+ + NO3- + K+ + I-  → AgI + KNO3

AgNO3 + KI → AgI + KNO3

b) Ba(OH)2 + 2HNO3 → Ba^2+ + 2OH- + 2H+ + 2NO3-

Ba^2+ + 2OH- + 2H+ + 2NO3- → Ba(NO3)2 + 2H2O

Ba(OH)2 + 2HNO3 → Ba(NO3)2 + 2H2O

c) 2Na3PO4  + 3Ni(NO3)2 → 6Na+ + 2PO4^3- + 3Ni^2+ + 6NO3-

6Na+ + 2PO4^3- + 3Ni^2+ + 6NO3- →  Ni3(PO4)2 + 6NaNO3

2Na3PO4  + 3Ni(NO3)2  → Ni3(PO4)2 + 6NaNO3

d) 2Al(OH)3 + 3H2SO4 → 2Al^3+ + 6OH- + 6H+ + 3SO4^2-

2Al^3+ + 3OH- + 3H+ + 3SO4^2- → Al2(SO4)3 + 6H2O

2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

7 0
3 years ago
An atom has a nucleus that has mass and volume. How does the mass of the nucleus compare to the mass of the atom? How does the v
makvit [3.9K]

Answer:

The mass of the nucleus is almost the same as the atom because a majority of the mass of an atom is stored in the nucleus.

The volume of an atom is larger than the nucleus. The nucleus is a tiny, concentrated area inside of the atom. Atoms are mostly empty space inside.

Explanation:

8 0
3 years ago
before the quarry was dug, the land contained more vegetation . what impact has this change most likely had on the local ecosyst
Sergio039 [100]
It was loss of nutrients, I think


Explanation:

The quarry was dug up and vegetation started dying. The quarry was probably rich with nutrients

Please brainliest !! ❤️
5 0
3 years ago
Zzzzzzzzzzzzzzzzzzzzzzz
Korolek [52]

Answer:

Wake up wake up wake up wake up

Explanation:

wake up wake up wake up wake up

6 0
3 years ago
How many electrons does carbon need to gain to obtain a noble gas electron configuration
laila [671]
Carbon has 4 valence electrons so to gain a noble gas electron configuration, which has 8 valence electrons and is the most electrically stable, carbon needs 4 more electrons.
4 0
3 years ago
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