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2 years ago

What apparatus is used to measure small volume of liquid

Chemistry

2 answers:

Doss [256]2 years ago

7 0

Answer:

give me brainliest pls

Explanation:

Volumetric flasks

Volumetric labware is for measuring liquids with precision. Volumetric flasks, burettes, and pipettes made for measuring small amounts of liquid are the most accurate, with tolerances of less than ±0.02.

Delicious77 [7]2 years ago

3 0

Answer:

A pipette is a laboratory instrument used to measure out or transfer small quantities of liquid, in volumes of milliliters (mL), microliters (μL).

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Identify the major attractive force in HF molecules.A) London Dispersion Forces (LDFs)

Llana [10]

Answer:

C) hydrogen bonding

Explanation:

All atoms and molecules have London Dispersion Forces between them, but they are usually overshadowed but the much stronger forces. In this scenario the major attractive force in HF molecules are hydrogen bonds. Hydrogen bonds are electrostatic forces of attraction found when Hydrogen is bonded to a more electronegative atom such as Oxygen, Chlorine and Fluorine.

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2 years ago

Calcium carbide ( CaC2) reacts with water to produce acetylene (C2H2) as shown in the unbalanced reaction below: CaC2(s)+H2O(g)-

MaRussiya [10]

Answer:
46.3g H2O

Explanation:
start by balancing it: CaC2(s) + 2H2O(g) -> Ca(OH)2(s) + C2H2(g)

then use factor label method to solve

82.4g CaC2 x (1 mol CaC2/64.10g CaC2) x (2 mol H2O/1 mol CaC2) x (18.016g H2O/1 mol H20) = 46.3g H2O

4 0

2 years ago

Which of the following statements about alkenes is not correct?

professor190 [17]

<span>Option-C: They react mainly by substitution.

Explanation:
Alkene doesn't give substitution reactions because they are non polar in nature. The double bond in alkene is responsible for Electrophillic Addition reactions as it electron rich and nucleophilic in nature. Reaction of Alkene is given below,</span>

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2 years ago

In Cellulose, C6H7O2(OH)3

GarryVolchara [31]

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2 years ago

DIRECTIONS: Solve the following problems by using G.R.E.S.A (Given, Required,Equation, Solution, and Answer).

Licemer1 [7]

Answer:

SEE BELOW

Explanation:

Given 500 cm^3 = V1 760 mm = P1 (760*2) = P2

Required V2

P1V1 = P2V2

RE-ARRANGE TO P1V1/P2 = V2

(760)(500) /(760*2) = V2

V2 = 250 ML

6 0

1 year ago

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