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luda_lava [24]
3 years ago
6

Stephen wants to make the pitch of a sound wave lower. He should...

Chemistry
2 answers:
tatuchka [14]3 years ago
8 0

Answer:

I would say the answer would be B.

Explanation:

Neporo4naja [7]3 years ago
4 0

Answer:He should. decrease its frequency. Brian turns up the volume on his stereo.

Explanation:

mark me as brainlest

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Compare the first ionization energy of sodium to that of potassium
stellarik [79]

Answer:

Sodium is higher than Potassium in thesame group

Explanation:

Sodium and potassium are the elements present in the first group of the periodic table. In group, atomic size increases from top to bottom this implies that even atomic radius increases. This causes less attraction force by nucleus on the electrons of outermost orbit of the atom and hence reduces the first ionisation energy, which is the energy required to remove the electron from the outermost orbit of an atom. So, as potassium is below sodium in the group, sodium has greater ionisation energy than potassium

3 0
3 years ago
An inference _______.
ryzh [129]

Answer:

A

Explanation:

Am Inference is an educated guess, or a guess using prior knowledge

3 0
2 years ago
What is the volume of a 60.0 g object with a density of 2.12 g/cm3?
Katyanochek1 [597]

Answer:

127.2 g/cm^3

Explanation:

(Think of the DMV triangle. I'll attach a picture)

Volume = Density x Mass

Volume = 2.12 g/cm3 x 60.0 g

Volume = 127.2 g/cm3

Hope this helps!!!

-Unicorns110504

*Please mark brainliest*

7 0
2 years ago
Read 2 more answers
5. How many moles are there in 222.3 grams of Ca(OH)2? (1) 1.5 mol (3) 5.5 mol (2) 3.0 mol (4) 22.3 mol 5​
tensa zangetsu [6.8K]

Answer: (2)3.0 mol

Explanation: 222.3g= 222.3/74= 3.0 mol

1mol Ca(OH)2 is 74g

6 0
2 years ago
Which are the products in this chemical reaction? 2C4H10 + 13O2 8CO2 + 10H2O A. 13O2 + 10H2O B. 8CO2 + 10H2O C. 2C4H10 + 13O2 D.
arsen [322]

<u>Answer:</u> The products in the given chemical reaction are 8CO_2\text{ and }10H_2O

<u>Explanation:</u>

Reactants are defined as the species which react in the reaction and are written on the left side of the reaction arrow.

Products are defined as the species which are produced in the reaction and are written on the right side of the reaction arrow.

For the given chemical equation:

2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O

The reactants of the above reaction are 2C_4H_{10}\text{ and }13O_2 and the products are 8CO_2\text{ and }10H_2O

Hence, the products in the given chemical reaction are 8CO_2\text{ and }10H_2O

8 0
3 years ago
Read 2 more answers
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