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nordsb [41]
3 years ago
12

*blank* carry blood away from the heart, while *blank* carry blood back to the heart.

Chemistry
1 answer:
worty [1.4K]3 years ago
5 0

Answer:

i think its C im not so sure

Explanation:

nrjdkfkzhsugogo

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2.
katovenus [111]

Answer:

A. 6atm

Explanation:

Using pressure law equation:

P1/T1 = P2/T2

Where;

P1 = initial pressure (atm)

T1 = initial temperature (K)

P2 = final pressure (atm)

T2 = final temperature (K)

According to this question;

P1 = 3 atm

P2 = ?

T1 = 120K

T2 = 240K

Using P1/T1 = P2/T2

3/120 = P2/240

Cross multiply

240 × 3 = P2 × 120

720 = 120P2

P2 = 720/120

P2 = 6atm

4 0
3 years ago
Indicate the correct number of sig figs
Dimas [21]

Explanation:

The answer to questions are

A) 4

B) 3

C) 5

D) 3

E) 3

3 0
3 years ago
Why is potassium placed in the periodic table where it is?
Virty [35]
Potassium is placed where it is based on its properties and it's reactivity. It's also placed there based on it's atomic number. 
6 0
3 years ago
Sinkholes can form when _____?
Oxana [17]
Water flows under the ground
8 0
3 years ago
Read 2 more answers
Nitrogen ion (Nitride) is ... Cation/Anion/Neither? # of protons? # of electrons? Charge (1-, 2-, 3-, 1+, 2+, 3+, or 0) Number o
OLga [1]

Answer:

3- is the charge and 8 dots on its Lewis dot structure.

Explanation:

Hello there!

In this case, since nitrogen is an element with five valence electrons (electrons on its outer shell), we infer that it needs three bonds to complete the octet, for which its charge, when forming nitride ions is 3-, which means it has received three electrons. Thus, when drawing the Lewis dot structure, it is evident that is will have 5+3 = 8 dots due to the electron reception.

Regards!

8 0
3 years ago
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