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Delicious77 [7]
3 years ago
13

The diagram illustrates a sound wave and a light wave propagating through air.

Chemistry
1 answer:
Alexxandr [17]3 years ago
8 0
Answer: C what is the wavelength of each wave?
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When the distance between two objects increases, the gravitational force between them _____.
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The force between them decreases
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4 years ago
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A weather balloon has a volume of 52.5 liters at a temperature of 295 K. The balloon is released and rises to an altitude where
Goryan [66]
So you have a balloon rising through the atmosphere. use the formula p1/v1=p2/v2 and add the variables into the equation, leaving 295/52.5=252/x. multiply 252 by 52.5 and divide that number by 295.
52.5*252=13230. divide by 295 =44.9 L
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3 years ago
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Determine which of the acids are Arrhenius acids, Brønsted–Lowry acids, and Lewis acids. It is possible for an acid to be of mor
tatyana61 [14]

This is an incomplete question, here is a complete question.

Determine which of the acids are Arrhenius acids, Brønsted–Lowry acids, and Lewis acids. It is possible for an acid to be of more than one type. Which acids are Arrhenius acids?

AlCl₃ (aq)

BCl₃ (aq)

HCl (aq)

Answer :

HCl is an Arrhenius acid and Bronsted Lowry acid

AlCl₃ is a Lewis-acid

BCl₃ is a Lewis-acid

Explanation :

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions (OH^-) when dissolved in water and an acid is defined as a substance which donates hydronium ions (H_3O^+) in water.

According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

From this we conclude that:

HCl is an Arrhenius acid because it donates hydrogen ion and also Bronsted Lowry acid because it also donate protons.

AlCl₃ is a Lewis-acid because it is a electron deficient and accept lone pair of elections.

BCl₃ is a Lewis-acid because it is a electron deficient and accept lone pair of elections.

7 0
3 years ago
What is known about a reaction with a negative enthalpy?
Debora [2.8K]

Answer:

B.the reaction is spontaneous

3 0
3 years ago
2. Metric Conversion: Which units are equivalent (the same) as 75g? (Pick 3)
kogti [31]

Answer:

0.075 kg

750 dg

7.5 dag

Explanation:

1 kg = 1000 g

So, 0.075 kg = (0.075 × 1000)g = 75 g

1 dg = 0.1 g

So, 750 dg = (750 × 0.1) g = 75 g

1 dag = 10 g

So, 7.5 dag = (7.5 × 10) g = 75 g

5 0
3 years ago
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