eblox

A chemical reaction produces 5.6 L of nitrous oxide gas (N2O) at STP. What is the mass of the gas produced?

0.25 g

44 g

11 g

5.6 g

2. Which of the following is not a measure of the amount of matter

Molar mass

STP

molar volume

mole

You have a 5-liter container with 1.30 × 1024 molecules of ammonia gas (NH3) at STP. How many molecules of hydrogen gas (h2) are in an identical container at the same temperature and pressure?

(Points: 3)

6.02 × 1023 molecules <-

1.30 × 1024 molecules

2.00 × 1023 molecules

6.02 × 1024 molecules

C6H6(s) → C6H6(l)

A. H = 0

B. H > 0

C. H < 0

A. condensation

B.Dissolving sugar in water

C.melting ice

D. Dissolving ammonium nitrate in water to cool the water

i was thinking D

(x+2)^2/9-(y-4)^2/16=1

label the foci, the vertices, and the asymptotes.

(𝑦−3)^2/1 - (x+2)^2/4 = 1

this afternoon i was drinking a can of la croix cerise lemon flavor it was my first time ever trying la croix i was very thirsty so i decided to jug about a fourth of it. Next thing i noticed i was a feeling lightheaded and a my heartbeat beating a little bit irregularly. I decided to take a nap after that and did not wake up only until 6 hours later (i never take naps and not for that long!) now i need to make something clear i have never tried alcohol in my life so im not really sure what this feeling is.

a cable runs around a winch with a radius of 4.35 cm. Determine the minimum cable length used if the winch rotates at a speed of 5 rpm and operates for 5 mins 36 sec

events a and b are independent find the missing probability. Enter your answer as a decimal rounded to two decimal places. P(A)=2/5,P(A and B)=3/10,P(not B)=?

Find P(Queen|Face Card). Enter your answer as a decimal rounded two places.

2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this reaction, explain how you came up with this equation, and explain what it tells you about the reaction.

any skincare would work, it doesn't have to be korean skincare (but preferably). i need something for skincare that has niacinaminide and vit C ingredients and i want to use them daily.

I genuinely have problems. Whenever the teacher asks a question i usually take more time than my peers to answer it. It take alot for me to process it ( i do get the answers correct though). Also whenever im in challenging situation like a timed test i blank out(my brain starts thinking about waaaay different things) , this has been happening ALOT. I really dont know why im like this i feel very stupid.

A spinner has 4 equally sized sectors that are numbered 3, 3, 4 and 6. The spinner is spun twice and the sum of the outcomes is found.

A fair decision is to be made about which one of 4 vacation destinations will be planned, using the sum of the outcomes.

The vacation destination options are New Mexico, Alaska, Puerto Rico and London.

Which description accurately explains how a fair decision can be made in this situation?

If the sum is 6, the vacation destination will be London. If the sum is 8, the vacation destination will be Alaska. If the sum is 9, the vacation destination will be New Mexico. If the sum is 7, 10 or 12, the vacation destination will be Puerto Rico.

If the sum is 6, the vacation destination will be London. If the sum is 7, the vacation destination will be Alaska. If the sum is 10, the vacation destination will be New Mexico. If the sum is 8, 9 or 12, the vacation destination will be Puerto Rico.

If the sum is 6, the vacation destination will be London. If the sum is 7, the vacation destination will be Alaska. If the sum is 9, the vacation destination will be New Mexico. If the sum is 8, 10 or 12, the vacation destination will be Puerto Rico.

If the sum is 10, the vacation destination will be London. If the sum is 7, the vacation destination will be Alaska. If the sum is 9, the vacation destination will be New Mexico. If the sum is 6, 8 or 12, the vacation destination will be Puerto Rico.

Two number cubes are rolled to determine how a token moves on a game board. The sides of each number cube are numbered 1, 2, 3, 4, 5 and 6.

There are two options describing how the token will be moved.

Option A: If the product is even, move forward 7 spaces. Otherwise, move backward 5.

Option B: If the product is even, move forward 5 spaces. Otherwise, move backward 4.

Use mathematical expectation to determine which option offers the greater likelihood of moving closer to the finish line on the game board.

Which statement best explains the better option?

The mathematical expectation of Option A is 4. The mathematical expectation of Option B is 2.75. Option A offers a greater likelihood of advancing to the finish line.

The mathematical expectation of Option A is 2.75. The mathematical expectation of Option B is 4. Option A offers a greater likelihood of advancing to the finish line.

The mathematical expectation of Option A is 4. The mathematical expectation of Option B is 2.75. Option B offers a greater likelihood of advancing to the finish line.

The mathematical expectation of Option A is 2.75. The mathematical expectation of Option B is 4. Option B offers a greater likelihood of advancing to the finish line.