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nalin [4]
3 years ago
13

This question is about elements, compounds and mixtures.

Chemistry
2 answers:
Ede4ka [16]3 years ago
6 0

Answer:

answer is potasium means k

Free_Kalibri [48]3 years ago
6 0

Answer:

i think potassium

Explaination:

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kherson [118]

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red because its the flavor

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What information is needed to determine the amount of moles in 1.6g of HCL?
alukav5142 [94]

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Molar mass and Mass

Explanation:

The relationship between mass and number of moles is given as;

Number of moles = Mass / Molar mass

Mass = 1.6 g

Molar mass of HCl = ( 1 + 35.5 ) = 36.5 g/mol

Number of moles = 1.6 g / 36.5 g/mol

Number of moles = 0.0438 mol

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What is homeostasis?
Alexandra [31]

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""the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.""

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2 years ago
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Calculate the approximate volume of a 0.6000mol sample of gas at 288.15K and a pressure of 1.10atm.
11111nata11111 [884]

Answer:

The volume of the sample of the gas is found to be 12.90 L.

Explanation:

Given pressure of the gas = P = 1.10 atm

Number of moles of gas = n = 0.6000 mole

Temperature = T = 288.15 K

Assuming the volume of the gas to be V liters

The ideal gas equation is shown below

\textrm{PV} =\textrm{nRT} \\1.10 \textrm{ atm}\times V \textrm{ L} = 0.6000 \textrm{ mole}\times 0.0821 \textrm{ L.atm.mol}^{-1}.K^{-1}\times 288.5\textrm{K} \\\textrm{V} = 12.90 \textrm{ L}

Volume occupied by gas = 12.90 L

6 0
3 years ago
Bài 1. Có 30g dung dịch NaCl 20%. Tính nồng độ % dung dịch thu được khi
AlladinOne [14]

Answer:

Bài 1. Có 30g dung dịch NaCl 20%. Tính nồng độ % dung dịch thu được khi

a. Pha thêm 20g H2O

b. Cô đặc dung dịch để chỉ còn 25g.

6 0
3 years ago
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