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If clay just forms the colloidal particles, a) It becomes electrically charged b) It retains its solid structure c) It dissolves completely in water d) It becomes transparent

Pocza asked Dec 3, 2024

by Pocza

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A glass can be filled with water above the rim without spilling due to a. hydrogen bonds b. covalent bonds c. hydrophobic interactions d. ionic bonds

Hewstone asked Dec 3, 2024

by Hewstone

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1 vote

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Chemoreceptors sensitive to blood carbon dioxide levels are primarily located in the________

Daniel Chepenko asked Dec 3, 2024

by Daniel Chepenko

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2 votes

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Which of the following metals can be used for the test of hydrogen instead of zinc? a) Copper b) Iron c) Aluminum d) Silver

Melursus asked Dec 3, 2024

by Melursus

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2 votes

230k views

What is [H₃O⁺] in a solution of 0.25 M CH₃CO₂H and 0.030 M NaCH₃CO₂? a) 1.8 × 10⁻⁵ M b) 1.5 × 10⁻⁴ M c) 2.5 × 10⁻⁴ M d) 3.0 × 10⁻³ M

Cuzzea asked Dec 3, 2024

by Cuzzea

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1 answer

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A 4.31 of hydrated (Na2 CO3*nH2O) gave 3.22 of anhydrous sodium carbonate on heating to a constant mass. Determine the formula of the hydrate

John Petrone asked Dec 3, 2024

by John Petrone

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1 answer

2 votes

180k views

if the pka values for arginine are 1.82 and 8.99 and 13.2, at what ph will the amino acid not migrate in an electrical field?

Cristiano asked Dec 3, 2024

by Cristiano

7.6k points

1 answer

0 votes

117k views

an ionic compound will dissolve when the attraction between the ______ molecules and the ions is greater than the attraction between the _____ themselves

Mackshkatz asked Dec 3, 2024

by Mackshkatz

8.3k points

1 answer

4 votes

109k views

What does Oligosaccharyl Transferase (OST) do? A) Catalyzes signal peptide cleavage B) Facilitates ribosomal translocation C) Mediates protein glycosylation in the ER D) Initiates protein retrotranslocation

Nk Abram asked Dec 3, 2024

by Nk Abram

8.2k points

1 answer

4 votes

28.0k views

A solution is prepared by adding 30.8 ml of 0.061 m hbr to 184.2 ml of 0.39 m hi. calculate [h ] and the ph of this solution. hbr and hi are both considered strong acids. H+= Ph=

Wee Kiat asked Dec 3, 2024

by Wee Kiat

7.4k points

1 answer

4 votes

184k views

I would like to develop a device that measures pH in aqueous solutions. I'm not a chemist, but I have some basic knowledge about electrochemistry. So, I thought I could use two electrodes quite close together;

Shahrokhian asked Dec 3, 2024

by Shahrokhian

8.1k points

1 answer

4 votes

83.3k views

Question 1-2 Which of the following is an example of a chemical change? O Amarshmallow turning black when heated over a fire A powder dissolving in water to make lemonade An ice cube melting into a puddle

Phung asked Dec 3, 2024

by Phung

7.8k points

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3 votes

83.8k views

What is the likely result of heating a recover cylinder with an open flame?

Esraa Abdelmaksoud asked Dec 3, 2024

by Esraa Abdelmaksoud

8.1k points

2 answers

5 votes

177k views

Using the lab equipment and a calculator, compute the density and identify the mineral in question. Responses A galena B platinum C phosgenite D potash alum

Hemerson Varela asked Dec 3, 2024

by Hemerson Varela

8.0k points

1 answer

3 votes

81.9k views

Dry-chemical agents fall into how many categories?

Chris Pan asked Dec 3, 2024

by Chris Pan

8.9k points

1 answer

1 vote

44.5k views

Balance the chemical equation Fe_(2)(C_2O_4)_3 \: - > FeC_2O_4+CO_2

Accelerate asked Dec 3, 2024

by Accelerate

8.8k points

2 answers

5 votes

63.0k views

A block of aluminum is (A) ground into aluminum powder and then (B) ignited. It then emits flames and smoke. Classify (A) and (B) as chemical or physical changes. a. (A) Chemical, (B) Chemical b. (A) Chemical,

Colin Hebert asked Dec 3, 2024

by Colin Hebert

8.3k points

1 answer

5 votes

50.8k views

How many milliliters of 0.1192 M NaOH solution is required to completely react with 9.04 mL of 0.1601 M HCl solution?

Nils Wasell asked Dec 3, 2024

by Nils Wasell

7.8k points

1 answer

1 vote

235k views

which has the greatest number of molecules? A. 28 g of nitrogenB. n2 32 g of oxygeno2 C. 32 g of methaneD. ch4 38 g of fluorineE. f2

Theprojectabot asked Dec 3, 2024

by Theprojectabot

8.1k points

1 answer

1 vote

216k views

What is the ph of 0.75 m potassium formate, hcook?

Rinaldi asked Dec 3, 2024

by Rinaldi

7.4k points

1 answer

4 votes

168k views

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