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3 years ago

Connect them, dont guess please + 23 points

Chemistry

1 answer:

Phantasy [73]3 years ago

5 0

Answer:

Astronaut- highly trained individual for space travel

Payload Specialist- partnering scientist, journalist, or political guest.

Space Sickness- nausea, vomiting, and upset stomach.

Muscle Atrophy- the result of microgravity.

Johnson Space Center- training facility for U.S. astronauts.

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A gas sample is held at constant pressure. The gas occupies 2.97 L of volume when the temperature is 21.6°C. Determine the tempe

STALIN [3.7K]

Answer:

339.2K

Explanation:

Using Charles law equation;

V1/T1 = V2/T2

Where;

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question,

V1 = 2.97 L

V2 = 3.42 L

T1 = 21.6°C = 21.6 + 273 = 294.6K

T2 = ?

Using V1/T1 = V2/T2

2.97/294.6 = 3.42/T2

Cross multiply

2.97 × T2 = 294.6 × 3.42

2.97T2 = 1007.532

T2 = 1007.532 ÷ 2.97

T2 = 339.236

The final temperature is 339.2K

5 0

3 years ago

If you lift an object that weighs 13 pounds through a distance of 3 feet, you have done foot-pounds of work.

Katyanochek1 [597]

The answer to your statement is true

3 0

3 years ago

Read 2 more answers

CH,(g) + 20,(g) - CO2(g) + 2H20() + S90.4 kJ<br> What is the type of reaction that is occurring?

7nadin3 [17]

Answer:

The type of reaction that is occuring is 164.8 kJ.

3 0

3 years ago

Which would you expect sound to have the greatest speed, 20liter container with 5000 molecules or the 20 liter container with 10

AnnZ [28]

1000 because of less molecules

3 0

3 years ago

In a chemical reaction, substrate molecule A is broken down to form one molecule of product B and one molecule of product C. The

MAVERICK [17]

Answer:

The answer to your question is d. 0.5 M

Explanation:

Data

[A] = 1M

K = 0.5

Concentration of B and C at equilibrium = x

Concentration of A at equilibrium = 1 - x

Equation of equilibrium

k = $\frac{[B][C]}{A}$

Substitution

$0.5 = \frac{[x][x]}{1 - x}$

Simplification

0.5 = $\frac{x^{2}}{1 - x}$

Solve for x

0.5(1 - x) = x²

0.5 - 0.5x = x²

x² + 0.5x - 0.5 = 0

Find the roots x₁ = 0.5 x₂ = -1

There are no negative concentrations so the concentration of A at equilibrium is

[A] = 1 - 0.5

= 0.5 M

4 0

3 years ago