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Nitella [24]
3 years ago
10

Put the moon phases in order from first to last phase.

Chemistry
2 answers:
quester [9]3 years ago
5 0
The answer is a i did the test 
ivolga24 [154]3 years ago
4 0
It is b or a check with someone else
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a gas expands from 266 mL to 983 mL at constant temperature. calc the work done (in joules) by the gas if it expands against a v
Mkey [24]

Answer:

w₁ = 0 J

w₂ = -297 J

Explanation:

Step 1: Given data

Initial volume: 266 mL (0.266 L)

Final volume: 983 mL (0.983 L)

Step 2: Calculate the work done (in joules) by the gas if it expands against a vacuum

We will use the following expression.

w₁ = -P₁ × ΔV

Since the gas expands against a vacuum, P₁ = 0. Thus, w₁ = 0 J

Step 3:  Calculate the work done (in joules) by the gas if it expands against a constant pressure of 4.09 atm

We will use the following expression.

w₂ = -P₂ × ΔV

w₂ = -4.09 atm × (0.983 L-0.266 L) = -2.93 atm.L

Then, we convert w₂ to Joule using the conversion factor 1 atm.L = 101.325 J.

-2.93 atm.L × 101.325 J/1 atm.L = -297 J

6 0
2 years ago
How do you find the number of electrons in a atom?
olganol [36]

look at the atomic number using the periodic table. The Atomic number equals the amount of protons and the amount of protons equals the amount of electrons

7 0
3 years ago
Infectious agents vary in their size and shape. Which infectious agent tends to be the smallest?
Anika [276]

Answer:

prions

Explanation:

They are the smallest infectious agent.

8 0
2 years ago
Since acids have 1 more proton (H+ - ions) than base, and the acid gives it away, doesn't that mean that they switch roles? Acid
andreev551 [17]

Answer:

In an acid-base equilibrium, acid becomes a conjugate base and base becomes a conjugate acid.

Explanation:

Let's remember the Bronsted-Lowry theory to answer this specific question. According to the theory, acid is a proton donor, while a base is a proton acceptor.

Consider an acid in a form HA (aq) and base in a form of B (aq). Since acid is a proton donor, it will donate its hydrogen ion to the base, B. The resultant products would be A^{-} (aq) and BH^{+} (aq).

Remember that an acid-base reaction is an equilibrium reaction. This means we may also look at this proton transfer reaction from the product side towards the reactants. Summarizing what has been said, we may write the equilibrium as:

HA (aq) + B (aq) ⇄ BH^{+} (aq) + A^{-} (aq)

Now acid, HA, donates a proton to become a conjugate base. The conjugate base, if we look from the reverse equation side, is actually a base, since it can accept a proton to become HA. Similarly, B accepts a proton to become a conjugate acid. Looking from the reverse reaction, it can now donate a proton, so in reality we can consider it a base.

To summarize, your logic is correct.

6 0
3 years ago
A tone that is lower in pitch is lower in what characteristic?
zepelin [54]
A tone that is lower in pitch is lower in what characteristic?=frequency
4 0
3 years ago
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