Chemistry College

Which action is not an example of work?

A. pushing a box across the floor
B. picking up a box off the floor
C. holding a tray in the Cafeteria line
D. raising a barbell over your head

Answers

Answer 1

C. picking a tray in the cafeteria line

Related Questions

A white crystalline salt conducts electricity
when it is melted and when it is dissolved
in water. Which type of bond does this salt
contain?
A. ionic
B. metallic
C. covalent
D.
network

Answers

White crystalline salt contains an ionic bond because it is formed due to the transfer of electrons from one atom to another.

25. What is a subdivision of a family? *
O kingdom
O domain
O genus
O species

Answers

The answer I believe is genus

what is the volume, in liters, of 5.500 mol of C3H3 gas at STP

Answers

Answer:

123.2 Liters.

Explanation:

At STP (T = 273K & P = 1atm), one mol of any gas will occupy 22.4 liters.

With the above information in mind, we can calculate how many liters would 5.500 mol of gas occupy:

5.500 mol * 22.4 L / mol = 123.2 L

So 5.500 moles of C₃H₃ would have a volume of 123.2 liters at STP.

NEED HELP ON THIS NOW PLEASE

Answers

Answer:

A. Bees bringing pollen from the flower of one plant to the flower of another plant.

Explanation:

Genetic diversity in organisms is enhanced by the process of sexual reproduction due to the meiotic process that the participant organisms undergo to produce gametes. A process unique to meiosis called CROSSING OVER ensures that the alleles of genes are recombined in the GAMETE or sex cells.

According to this question, POLLINATION, which is the transfer of pollen from a male flower to a female one, will lead to sexual reproduction via fertilization. However, a cross-pollination, which requires a pollinator like the bees in this question will ensure the most genetic diversity among the offsprings.

What is the phase label on CI?

A. aq
B.
C. e
D. g
E. s

Answers

Answer:

Pubic hair smells bad

Explanation:

Where does thermal energy go? Assuming you forgot your hot food and came after a while and found it cold now. Where did the energy go?

Answers

It went inside of the food :)

Help please it’s due in 3 minutes

Answers

Answer:

A

Explanation:

Both students are Pushing/Pulling towards the same direction meaning if enough force is applied the object will move into that direction

Which of these is a carbohydrate?

1. C6 H12 O6
2. C6 H6 O12
3. C6 H13 O2 N
4. C3 H7 O2 Ns

Answers

Answer:

C6H12O6

Glucose

Explanation:

Glucose is a monocarbohydrate

carbohydrates always have only C, H, and O

brainliest plz

What season is represented in the northern hemisphere? *
5 points
Captionless Image
A. Spring
B. Summer
C. Fall
D. Winter

Answers

Answer:

B. summer

Explanation:

The northern hemisphere experiences summer during the months of June, July, and August because it is tilted toward the sun and receives the most direct sunlight.

Convert 1.55 x 10^24 ATOMS OF CARBON TO MOLES OF CARBON

Answers

Answer:

2.57 moles of carbon

Explanation:

1 mole = 6.023x10^23 (this is called avogadro's number)

1/6.023x10^23

1.55x10^24 = 1.55x10^24/6.023x10^23 = 2.57 moles

this means, 1.55x10^24 atom contains 2.57 moles of carbon

Will give brainlist please help

Answers

Staphylococcus

............

Air in a closed cylinder is heated from 15°C to 36°C. If the initial pressure is 1000 torr, determine what is the final pressure? *

Answers

Answer:

1072 torr

Explanation:

To answer this problem we can use Gay-Lussac's law, which states:

P₁T₂=P₂T₁

Now we convert the given temperatures into K:

T₁ = 15°C ⇒ 15+273.16 = 288.16 KT₂ = 36°C ⇒ 36+273.16 = 309.16 K

We input the data:

1000 torr * 309.16 K = P₂ * 288.16 K

And solve for P₂:

P₂ = 1072 torr
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