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navik [9.2K]
3 years ago
13

A pendulum bob at its highest point has a certain amount of potential energy. As it falls, what does the potential energy get tr

ansformed into? A. kinetic energy only B. potential energy only C. kinetic energy and heat energy D. potential energy and heat energy
Chemistry
1 answer:
Lisa [10]3 years ago
3 0
Good

Because is that true
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What is the oxidation number of carbon in the compound carbon dioxide, CO2?
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the oxidation number is 4

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if we add mass to a paper airplane then the distance of the plane flies will increase or decrease why?
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It matters to the aerodynamics of it because sometimes it's good to have the weight but only if it can take it.
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3 years ago
The elements in a row of the the periodic table​
Aleks [24]

Answer:

<em><u>Rows in the periodic table are called periods</u></em>. As one moves from left to right in a given period, the chemical properties of the elements slowly change. <em><u>Columns in the periodic table are called groups</u></em>. Elements in a given group in the periodic table share many similar chemical and physical properties

Explanation:

5 0
2 years ago
A 0.1 gram sample of an unknown liquid is vaporized completely at 70 degrees C to fill a 750mL flask. The pressure is 0.05951atm
Deffense [45]

Answer:

The molar mass of the liquid 62.89 g/mol

Explanation:

Step 1: Data given

Mass of the sample = 0.1 grams

Temperature = 70°C

Volume = 750 mL

Pressure = 0.05951 atm

Step 2: Calculate the number of moles

p*V = n*R*T

n = (p*V)/(R*T)

⇒ with n = the number of moles gas = TO BE DETERMINED

⇒ with p = The pressure = 0.05951 atm

⇒ with V = The volume of the flask = 750 mL = 0.750 L

⇒ with R = The gasconstant = 0.08206 L*atm/K*mol

⇒with T = the temperature = 70 °C = 343 Kelvin

n = (0.05951 *0.750)/(0.08206*343)

n = 0.00159 moles

Step 3: Calculate molar mass

Molar mass = mass / moles

Molar mass =0.1 gram /  0.00159 moles

Molar mass = 62.89 g/mol

The molar mass of the liquid 62.89 g/mol

6 0
3 years ago
Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed? s
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Gas, Liquid, Solid.

Explanation:

please mark brianliest :)

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3 years ago
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