3 years ago

Where do the letters go help me plz

Chemistry

2 answers:

gladu [14]3 years ago

8 0

Organism_A
Organ System_D

Montano1993 [528]3 years ago

5 0

Answer:

For d I'm pretty sure its Organ System, I apologies if I am wrong

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Cuanto equivale 3x10 ⁹ moles?

Leviafan [203]

Answer:

3,000,000,000

Explanation:

3 x (10⁹)=

3 x (1,000,000,000)

= 3,000,000,000

3 0

3 years ago

A gas has a volume of 1.75L at -23C and 150.0kPa. At what temperature would the gas occupy 1.30L at 210.0kPa?

Katen [24]

Answer:

T2 = 260 K

Explanation:

Given data:

P1 = 150.0 k Pa

T1 = (-23+ 273.15) K = 250.15 K

V1 = 1.75 L

P2 = 210.0 kPa

V2 = 1.30 L

To find:

T2 = ?

Formula:

$\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}$

$T_2 = \frac{P_2 V_2 T_1}{P_1 V_1}$

Calculation:

T2 = (210.0 kPa) x (1.30 L) x (250.15 K) / (150.0 kPa) x (1.75 L)

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4 years ago

Why is space cold ???

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Because the space is ultimate thermos.

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3 years ago

How many moles of KNO3 are needed to make 600 ml of a 1.3M solution?

ludmilkaskok [199]

M = n / V

Where, M is molarity (M or mol/L), n is number of moles of the solute (mol) and V is volume of the solution (L).

Here the solute is KNO₃.
The given molarity is 1.3 M
This means 1L of solution has 1.3 moles of KNO₃.

Hence moles in 600 mL = 1.3 M x 0.6 L = 0.78 mol

Therefore to make 1.3 M KNO₃ solution, needed moles of KNO₃ is 0.78 mol

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3 years ago

This is the process of matter changing from a gaseous state to a liquid state.

Stolb23 [73]

Answer: condensation

Explanation:

6 0

3 years ago

Read 2 more answers

Where do the letters go help me plz​

Where do the letters go help me plz