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dimaraw [331]
2 years ago
13

What expression is equal to -1

Chemistry
1 answer:
chubhunter [2.5K]2 years ago
4 0
What are the expression choices?
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Calculate the freezing point of a solution that contains 1.75 mol of nacl dissolved in 1.00 kg of water. be sure to enter the ne
matrenka [14]
In order to calculate the new freezing point, we must first find the depression. This is given by:

ΔT = Kf * b * i

where Kf is the cryscopic constant for the solvent, b is the molarity of the solution in moles per kilogram and i is the van't Hoff factor, which tells us how many ions will be released when a substance is dissolved. 

Kf = 1.853, b = 1.5, i = 2 (Na⁺ and Cl⁻)

ΔT = 5.5 °C

The new freezing point will be 0 + 5.5
5.5 °C
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3 years ago
An acid would __________. Group of answer choices turn red litmus paper blue react with bases to create a neutral solution react
Wewaii [24]

Answer:

blue react with bases to create a neutral solution

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Which mammal below lays tough leathery eggs? A) bear (placental) B) duck-billed platypus (monotreme) C) kangaroo (marsupial) D)
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Answer:

the answer to your question is B) Monotreme.

Explanation:

most mammals do not lay eggs, they give birth. But, monotreme mammals including the duck-billed platypus do in fact lay shelled eggs.

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2(mass no of magnisium)+mass of barium

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How are stars and comets different?(2 points)
evablogger [386]

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