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ehidna [41]
3 years ago
14

HELP me please................

Chemistry
2 answers:
mezya [45]3 years ago
8 0

Answer:

The answers is B

Explanation:

I did that question before !!

uysha [10]3 years ago
7 0

Answer: I’m pretty sure your answer is B

Explanation:

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A rigid container of gas has a pressure of 1.72 atm and temperature of 21 oC. If the temperature increases to 85 oC, what is the
Vinil7 [7]

Answer:

the new pressure is 2.09 atm

Explanation:

you have to use gay lussac's law so the formula is

p1/t1 = p2/t2

and convert C to Kelvin k=C+273.15

1.72atm/294.15 = p2/358.15

solve for p2 by multiplying 358.15 on both sides

p2=2.09 atm

5 0
3 years ago
Explain the relationship between altitude and air pressure
Nataly [62]
Pressure<span> with Height: </span>pressure<span> decreases with increasing </span>altitude<span>. The </span>pressure<span>at any level in the atmosphere may be interpreted as the total weight of the </span>air<span>above a unit area at any </span>elevation<span>. At higher elevations, there are fewer </span>air<span>molecules above a given surface than a similar surface at lower levels</span>
8 0
3 years ago
Read 2 more answers
Name the following ionic compounds: (a) K2Cr2O7, (b) Li2C2O4, (c) CuNO3.
Elis [28]

Answer :

(a) The name of K_2Cr_2O_7 is, potassium dichromate.

(b) The name of Li_2C_2O_4 is, lithium oxalate.

(c) The name of CuNO_3 is, copper nitrate.

Explanation:

Ionic compound : It is a type of compound that is made up of the ions of the two different elements in which one element is a metal and another element is a non-metal.

(a) K_2Cr_2O_7

The given compound K_2Cr_2O_7 is an ionic compound. It is made up of two different ions which are potassium ion (K^+) and dichromate ion (Cr_2O_7^{2-}).

So, the name of K_2Cr_2O_7 is, potassium dichromate.

(b) Li_2C_2O_4

The given compound Li_2C_2O_4 is an ionic compound. It is made up of two different ions which are lithium ion (Li^+) and oxalate ion (C_2O_4^{2-}).

So, the name of Li_2C_2O_4 is, lithium oxalate.

(c) CuNO_3

The given compound CuNO_3 is an ionic compound. It is made up of two different ions which are copper ion (Cu^+) and nitrate ion (NO_3^{-}).

So, the name of CuNO_3 is, copper nitrate.

4 0
3 years ago
Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best pr
masya89 [10]
<span>A polymer forms because the hydrocarbon joins with itself in a polymerization reaction.

I really hope this helps! :D</span>
6 0
3 years ago
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What is the name of the compound made from Sn 4+ and PO4 3-?
givi [52]

Answer:

Sn₃(PO₄)₄ - tin(IV) phosphate.

Explanation:

Hope it helps! :)

8 0
3 years ago
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