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ASHA 777 [7]
3 years ago
7

Iii. A sound wave can be modelled by using a slinky spring. A wavelength in this model is...

Chemistry
1 answer:
OLga [1]3 years ago
5 0

Answer: d. the distance between two rarefactions,

Explanation:

Wavelength is the distance between two identical adjacent points in a wave. This means that it is the distance between two adjacent compressions or two adjacent rarefactions.

Wavelengths are inversely related to frequency because the longer the wavelength, the less the number of wave cycles per second.

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Below is the word equation for the reaction between sodium hydroxide and hydrochloric acid. Identify the reactant(s) in the reac
Goshia [24]

I a chemical reaction, we have the reactants in the left part,followed by an arrow and then the products.

So, the reactants are the two that are in the left part of the equation:

Sodium hydroxide and Hydrochloric acid

3 0
1 year ago
If have a volume of 18 L of a gas at a temperature of 272 K and a pressure of 90 atm, what will be the pressure of the gas if ra
Solnce55 [7]

Answer:

P₂ ≅ 100 atm (1 sig. fig. based on the given value of P₁ = 90 atm)

Explanation:

Given:

P₁ = 90 atm                    P₂ = ?

V₁ = 18 Liters(L)              L₂ = 12 Liters(L)      

=> decrease volume => increase pressure

=> volume ratio that will increase 90 atm is (18L/12L)                                                                  

T₁ = 272 Kelvin(K)          T₂ = 274 Kelvin(K)

=>  increase temperature => increase pressure

=> temperature ratio that will increase 90 atm is (274K/272K)

n₁ = moles = constant    n₂ = n₁ = constant

P₂ = 90 atm x (18L/12L) x (274K/272K) = 135.9926471 atm (calculator)

By rule of sig. figs., the final answer should be rounded to an accuracy equal to the 'measured' data value having the least number of sig. figs. This means P₂ ≅ 100 atm based on the given value of P₁ = 90 atm.

3 0
3 years ago
How many moles of NaCl are there in 6.93g?
kkurt [141]
8.43
58.44g/mol*1/6.93g= 8.43moles of NaCL
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Which of the following elements with exhibit the greatest shielding effect
Dafna11 [192]

Rubidium would exhibit the greatest shielding [ effect. ]

8 0
3 years ago
How many total atoms are found in one molecule of H2O?
dlinn [17]
There are 3 atoms found in one molecules of H2O
3 0
3 years ago
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