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Solnce55 [7]
3 years ago
7

When we mixed milk and vinegar in the lab demonstration, a/an __. was created.

Chemistry
1 answer:
GenaCL600 [577]3 years ago
8 0

Answer:

Plastic

Explanation

Found on google

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Which of the following are examples of matter?a. heat b. sunlight c. water d. grass e. air
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Sunlight? air? i’m not sure they could all be matter..
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Which of the following is an example of translational kinetic energy? windmill a tuning fork a person running a car parked in a
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a person running a car parked in a driveway

Explanation:

A person running a car parked in a driveway is an example of translational kinetic energy.

Translational motion is the movement of body along a straight path.

Translational kinetic energy refers to the energy of a body moving along a straight path.

  • It is function of the mass and velocity of the moving body.
  • The motion of train on its track is an example of this form of energy
  • A fired bullet, falling object all experience translational kinetic energy.

learn more:

Translational kinetic energy brainly.com/question/9924094

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2. A student has a centrifuge tube containing 14.0 g of t-butanol and is asked to make a 1.2 m solution of ethanol/t-butanol. Ho
Vaselesa [24]

Answer:

0.774g of ethanol

0.970mL of ethanol

Explanation:

Molality is an unit of concentration defined as the ratio between moles of solute and kg of solvent.

In the problem, you need to prepare a 1.2m solution of ethanol (Solute) in t-butanol (solvent).

14.0g of butanol are <em>0.014kg </em>and as you want to prepare the 1.2m solution, you need to add:

0.014kg × (1.2moles / kg) = 0.0168 moles of solute = Moles of ethanol

To convert moles of ethanol to mass you require molar mass (Molar mass ethanol, C₂H₅OH = 46.07g/mol). Thus, mass of 0.0168 moles are:

0.0168moles Ethanol ₓ (46.07g / mol) =

<h3>0.774g of ethanol</h3>

And to convert mass in g to mL you require density of the substance (Density of ethanol = 0.798g/mL):

0.774g ₓ (1mL / 0.798g) =

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What element are usually shiny , can be bent or stretched and conduct electricity
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Answer:

gold and copper

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but I think there is 1 more

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