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A 1.30 L balloon is taken from room temperature (25*C) and placed into a freezer at -11.5*C. What is its new volume? (isobaric change)

Sarie asked Dec 18, 2024

by Sarie

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62.1k views

4. If the mass of an object is 72 g and Its volume Is 4.56 mL, what is the object's density? 15.65g/cm Shoe work

Silgon asked Dec 18, 2024

by Silgon

7.9k points

1 answer

3 votes

163k views

As I was trying to understand resonance, I got to know that it was imaginary phenomenon and it is just a tool to explain mechanisms and structures that are unexplained by Lewis dot structures or structures

Abluejelly asked Dec 18, 2024

by Abluejelly

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3 votes

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Fe(s) + H₂SO₄ (aq) => FeSO₄(aq) + H₂(g) what gas is obtain?

Simplyharsh asked Dec 18, 2024

by Simplyharsh

8.2k points

1 answer

0 votes

165k views

what volume (in ml) of 15.8 m hno₃ would be required to make 500.0 ml of a solution with a ph of 3.20?

Vildric asked Dec 18, 2024

by Vildric

7.9k points

1 answer

3 votes

54.0k views

The atomic mass of Calcium is 40.078 amu. Calcium has 5 isotopes: Calcium-40, Calcium-42, Calcium-43, Calcium-44, and Calcium-46. Based on the atomic mass, which of the isotopes is the most abundant? Why?

RSlaughter asked Dec 18, 2024

by RSlaughter

8.8k points

1 answer

4 votes

153k views

The electron-attracting species in the following is: a. -CN b. -NH2 c. -NHR d. -NHOR

M Imam Pratama asked Dec 18, 2024

by M Imam Pratama

8.0k points

1 answer

4 votes

81.8k views

If 24.0 mL of methanol (CH,OH) is dissolved in 55.0 mL of water, determine the percent by volume of methanol in the solution. Name the law or equation that is used to solve this problem. Show your work.

Alejandro Echeverri asked Dec 18, 2024

by Alejandro Echeverri

8.2k points

1 answer

3 votes

96.8k views

A solution of CaCl2 in water forms a mixture that is 29.0ms% calcium chloride by mass. If the total mass of the mixture is 394.3 g, what masses of CaCl2 and water were used? mass of CaCl2: g mass of water:

Blom asked Dec 18, 2024

by Blom

8.4k points

1 answer

1 vote

40.8k views

How many kcals are in 1 g of alcohol (NOT a nutrient)?

Stirredo asked Dec 18, 2024

by Stirredo

8.3k points

1 answer

1 vote

58.5k views

Equilibrium 133 135. The number of moles of NH3, that must be added to 2 L of 0.80 M AgNO3 in order to reduce the concentration of Ag+ ions to 5.0 × 10-8 M (Kformation for [Ag(NH3)₂] = 1.0 x108) is (Nearest

Arttronics asked Dec 18, 2024

by Arttronics

9.2k points

1 answer

4 votes

17.7k views

a system initially at 28 oc experiences a change to a final temperature of 38 oc. did the system experience an endothermic or exothermic change and why?

Anoop D asked Dec 18, 2024

by Anoop D

7.3k points

1 answer

1 vote

6.5k views

rank in order of decreasing ph the rain that fell on the hawaiian island of kauai on the mornings of (a) january 18, 1778; (b) december 7, 1941; (c) may 8, 2010. assume there were no active volcanoes on

Carlitux asked Dec 18, 2024

by Carlitux

7.2k points

1 answer

0 votes

153k views

What are the carbohydrates’ that give positive result with Seliwanoff ? why?

JayNCoke asked Dec 18, 2024

by JayNCoke

8.1k points

1 answer

0 votes

142k views

What characteristic of chlorinated solvents could ultimately result in liver problems from cleaners? a. acidity b. alkalinity c. fat-solubility d. low surface tension

Oenpelli asked Dec 18, 2024

by Oenpelli

7.7k points

1 answer

1 vote

52.0k views

Creation of glucose from stored non-carb sources is called: a) Glycogenesis b) Gluconeogenesis c) Glycolysis d) Glucose conversion

Dukz asked Dec 18, 2024

by Dukz

7.3k points

1 answer

5 votes

140k views

List three properties scientists should observe or measure for these substances. a) Density, boiling point, electrical conductivity b) Color, taste, texture c) Volume, mass, temperature d) Magnetic susceptibility,

Stecman asked Dec 18, 2024

by Stecman

8.4k points

1 answer

2 votes

83.3k views

8. Making soap is what type of reaction is it Chemical Physical Phase change all of the above

WolVes asked Dec 18, 2024

by WolVes

8.1k points

2 answers

2 votes

235k views

calculate the density (in g/l) of krypton at 47 c and 671 mm hg. report your answer using three significant figures.

Lucas Moeskops asked Dec 18, 2024

by Lucas Moeskops

8.0k points

1 answer

2 votes

42.4k views

2C₆H₁₄ + 19O₂ --> 12CO₂ + 14H₂O The reaction above is an example of which of the following? A) substitution reaction B) acid-base reaction C) enzyme reaction D) combustion reaction

Canser Yanbakan asked Dec 18, 2024

by Canser Yanbakan

7.8k points

1 answer

4 votes

185k views

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