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A homogeneous mixture is one that: A. contains only one element B. is uniform in composition C. cannot change state easily D. acts as a solvent

Panchu asked Dec 25, 2024

by Panchu

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8.4k views

When the body produces more carbon dioxide, what happens to the pH?

Amin Etesamian asked Dec 25, 2024

by Amin Etesamian

8.3k points

1 answer

4 votes

19.9k views

In which group of modern periodic table alkali earth and halogen are kept?

Thrax asked Dec 25, 2024

by Thrax

8.6k points

1 answer

1 vote

36.2k views

What would be osmotic pressure of a solution containing 5.85 g NaCl and 3.42 g sugar in 500 mL at 27°C? (1) 103.4 atm (2) 10.34 atm (3) 1.034 atm (4) 0.1034 atm

Cheroky asked Dec 25, 2024

by Cheroky

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1 answer

0 votes

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The following redox reaction occurs betwen the dichromate ion and ethanol: 3CH3CH2OH + 2CrO7^2- + 16H+ => 3CH3COOH + 4Cr^3+ + 11H2O A chemist uses 26.25 mL of 0.500 M CrO7^2- to titrate a 10.0 mL sample

Keely asked Dec 25, 2024

by Keely

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1 answer

1 vote

101k views

A. Order the three types of intermolecular forces (dipole-dipole, London force, hydrogen bonds) in order from weakest to strongest. ______(weakest) - London forces - Dipole-dipole forces - Hydrogen bonds

Josecampos asked Dec 25, 2024

by Josecampos

7.3k points

1 answer

0 votes

60.8k views

Can you prepare 1 liter of a 0.5-molar glucose solution? Show your work here. a) Yes, by dissolving 18 g of glucose in 1 liter of water. b) No, because glucose doesn't dissolve in water.

Gumzle asked Dec 25, 2024

by Gumzle

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1 answer

0 votes

32.3k views

4. Use the balanced chemical equation from the last question to solve this situation: You combine 0.5 moles of Na2CO3 with enough CaCl2 that your compound reacts completely. How many moles of NaCl would

Daath asked Dec 25, 2024

by Daath

8.8k points

1 answer

3 votes

17.0k views

What is not true of polymers? A) they release substances at a microscopically controlled rate B) they are chemical compounds C) they are formed by small molecules D) they are botanicals

Sam Edwards asked Dec 25, 2024

by Sam Edwards

8.7k points

1 answer

5 votes

181k views

How many double bonds are in the Lewis structure for hydrogen fluoride, HF? - none - one - two - three

Orionpax asked Dec 25, 2024

by Orionpax

8.4k points

1 answer

1 vote

60.5k views

In an acid-base neutralization titration, where the end point is a neutral solution, the unknown concentration of the receiving solution can be calculated because __________?

Maxim Makhun asked Dec 25, 2024

by Maxim Makhun

8.0k points

1 answer

1 vote

98.2k views

A plant makes glucose during photosynthesis. Glucose consists of the elements carbon, hydrogen, and oxygen. What is the source of the elements for the glucose that the plant makes? Construct an explanation.

Hitheredude asked Dec 25, 2024

by Hitheredude

8.0k points

2 answers

2 votes

471 views

What causes polyphosphate reversion to orthophosphate? A) Temperature B) pH C) Pressure D) Concentration

GPicazo asked Dec 25, 2024

by GPicazo

7.5k points

1 answer

2 votes

137k views

Consider a silicon p-n junction with an n-type doping concentration of 1016 cm-3 and forward biased with V=0.8V at 300K. Calculate the minority carrier hole concentration at the edge of the space charge

Nikita Patil asked Dec 25, 2024

by Nikita Patil

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1 answer

1 vote

34.7k views

Nitrogen reacts with oxygen to give N2O3 and N2O5, respectively. This data illustrates which law of stoichiometry? State the law. a. Law of Conservation of Mass - Matter cannot be created or destroyed

Hristo Georgiev asked Dec 25, 2024

by Hristo Georgiev

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1 answer

3 votes

98.1k views

Which type of molecular orbital is used to describe a buildup of electron density along the axis connecting two atomic nuclei to form a bond? A. sigma star B. pi star C. px D. sigma E. pi

Carl Groner asked Dec 25, 2024

by Carl Groner

7.9k points

1 answer

0 votes

76.0k views

A 760 mL gas sample at STP is compressed to a volume of 207 mL, and the temperature is increased to 33°C. What is the new pressure of the gas in Pa? Answer in units of Pa. Answer in units of Pa.

F Masruri asked Dec 25, 2024

by F Masruri

7.4k points

1 answer

4 votes

213k views

The monomer tetrafluoroethene forms which polymer used for coating frypans? a) Polyethylene b) Polyvinyl chloride c) Polystyrene d) Polytetrafluoroethylene (PTFE)

Dmytro Dadyka asked Dec 25, 2024

by Dmytro Dadyka

7.5k points

1 answer

1 vote

34.3k views

What is the net reaction of the reaction series below? 3 CO₂(g) + 4 H₂O(g) → C₃H₈(g) + 5 O₂(g) 3 C(s) + 3 O₂(g) → 3 CO₂(g) 4 H₂(g) + 2 O₂(g) → 4 H₂O(g)

CVertex asked Dec 25, 2024

by CVertex

7.9k points

1 answer

3 votes

65.8k views

What type of chemical reaction occurs in a galvanic cell, Spontaneous, or non-spontaneous?

Sventorben asked Dec 25, 2024

by Sventorben

8.1k points

1 answer

3 votes

135k views

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