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hammer [34]
2 years ago
5

Elements in the same __ have similar physical properties

Chemistry
2 answers:
anygoal [31]2 years ago
8 0
I’m pretty sure row is correct...if not sorry :/
Yakvenalex [24]2 years ago
7 0

Answer:

yes.row is a answer.I think so.

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True or false, cilia and mucus help keep our lungs clean and healthy?
fiasKO [112]

Answer:

It does. They trap particles so they don’t enter.

Explanation:

6 0
3 years ago
(c) O2 gas is transferred from a 3 L vessel containing oxygen at 4 atm to an evacuated 20 L vessel at a constant temperature of
Fudgin [204]

Answer:

After the transfer the pressure inside the 20 L vessel is 0.6 atm.

Explanation:

Considering O2 as an ideal gas, it is at an initial state (1) with V1 = 3L and P1 = 4 atm. And a final state (2) with V2 = 20L. The temperature remain constant at all the process, thus here applies the Boyle-Mariotte law. This law establishes that at a constant temperature an ideal gas the relationship between pressure and volume remain constant at all time:

P x V = k

Therefore, for this problem the step by step explanation is:

P_{1} xV_{1} = P_{2} xV_{2}

Clearing P2 and replacing

P_{2}= \frac{P_{1} xV_{1}}{V_{2} } = \frac{4atmx3L}{20L} = 0.6atm

7 0
3 years ago
If you have 10cm of snow with a volume of 40mL and a density of 0.5 g/mL how many inches of rain is this?
Lelu [443]

Density is the mass of compound divided by its volume can be shown as follows:

d = 0.5 g /mL = m /V = m /40 = 0.5

m = 20 g

40 mL of snow having 20 g of mass calculated from density.

Now, 10 cm of snow = 3.93 inches = 20 g  

As, 10 inches of rain will produce 11 inches of ice as the volume of ice is bigger than rain water.

10 inches rain = 11 inches snow

3.93 inches of snow produced by  

= (3.93 * 10) /11 = 3.57 inches rain.

Thus, 3.57 incehs of rain produces by 10 cm snow.

4 0
3 years ago
Which of the following are potential benefits of wind turbines? (may be more than one answer)
Inga [223]
All except for C. And it's good for the environment.
7 0
3 years ago
20. Which of the following elements would you expect to lose one electron? Select all that apply.
Jobisdone [24]

Answer:

Sodium and Potassium only

5 0
3 years ago
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