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kykrilka [37]
3 years ago
11

Can someone please help? We're studying astronomy and I have no idea what to name it. I was never good with names. ‍♀️

Chemistry
1 answer:
almond37 [142]3 years ago
5 0
I do not understand your question, what is the question, name what??
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Atomic radius increases as you move down a group of elements.
raketka [301]
Yes, the atomic radius increases as you move down a group of elements.  this is true
going down leads to valence electrons that are further away from nucleus -> less electrostatic attraction -> less pull towards nuc. -> greater radius/volume taken
3 0
3 years ago
One of the most common household toxins, benzene can be found in the following:
maksim [4K]

Answer : Option D) Paint Supplies.

Explanation : The paint is usually the major common household toxins, which contains benzene in it. Benzene being carcinogenic in nature is very harmful to humans.

7 0
3 years ago
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What is the mass of 18.0 mL of honey if its' density is 1.42 g/mL?
BigorU [14]

mass (m) = ? , volume = 18.0 ml , density = 1.42 g/ml .

density =  \frac{mass}{volume}  \\  \\ d =  \frac{m}{v}  \\  \\ mass = density \times volume \\  \\ m = d \times v \\  \\ m = 18 \: ml \times  \: 1.42 \:  \frac{g}{ml}  \\  \\ m = 25.56 \: g

I hope I helped you^_^

8 0
2 years ago
Which of the following is not a chemistry topic?
Tju [1.3M]
I’m pretty sure it’s D
6 0
3 years ago
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An ideal gas in a sealed container has an initial volume of 2.80 L. At constant pressure, it is cooled to 18.00 °C, where its
Aleks04 [339]

Answer:

T_1=-91.18\°C

Explanation:

Hello there!

In this case, given the T-V variation, we understand it is possible to apply the Charles' law as shown below:

\frac{T_1}{V_1}= \frac{T_2}{V_2}

Thus, since we are interested in the initial temperature, we can solve for T1, plug in the volumes and use T2 in kelvins:

T_1= \frac{T_2V_1}{V_2}\\\\T_1= \frac{(18.00+273.15)K(1.75L)}{(2.80L)}\\\\T_1=182K-273.15\\\\T_1=-91.18\°C

Best regards!

6 0
3 years ago
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