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Ivan
3 years ago
5

True or false: polyvalent cations are usually transition metals​

Chemistry
1 answer:
Rasek [7]3 years ago
6 0

Answer:True

Explanation:

Most of the transition metals—those metals in the center d-block of the periodic table—are polyvalent. Since they can form cations with different charges, those charges must be specified when naming the ions and when naming compounds containing those ions.

If you found my answer useful then mark me brainliest.

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A constant volume of oxygen is heated from 100°C to 155°C. The
dybincka [34]

Answer:

= 3.56 atm

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure and Charles law states the volume of a given mass of gas is directly proportional to the temperature.

P1/T1 = P2/T2

P1 = 3.1 atm, T1 = 100'C = 100+273 = 373K

T2 = 155'C = 155 + 273 = 428K

3.1/ 373 = P2 / 428

Cross multiply

373 × P2 = 3.1 × 428

373×P2 = 1326.8

Divide both sides by 373

P2 = 1326.8 ÷ 373

P2 = 3.56 atm

I hope this was helpful, please mark as brainliest

3 0
3 years ago
Which volcanoes are located on a diverging boundaries
disa [49]

Krafla Volcano in Iceland,

8 0
4 years ago
A solution is prepared from 8 grams of acetic acid (CH2CO2H) and 725 grams of water. What is the molarity of this solution?
Andrews [41]
Hello!

First, we can assume the density of water to be 1 g/mL, so the volume of water would be 725 mL. The density of Acetic Acid (Pure) is 1,05 g/mL so 8 grams would represent 7,61 mL

Now we can apply the following conversion factor to calculate the molarity of the solution, using the molar mass of Acetic Acid:

[CH_3CO_2H]=\frac{8 g_{CH_3CO_2H}  }{725 mL + 7,61 mL}* \frac{1000 mL}{1 L}* \frac{1 mol_{CH_3CO_2H} }{60,05 g_{CH_3CO_2H} }

[CH_3CO_2H]=0,1818 M

So, the concentration of acetic acid would be 0,1818 M

Have a nice day!
4 0
4 years ago
Read 2 more answers
A base is a substance that can __________ a hydroxide ion.
ivanzaharov [21]

Answer:

A base is a substance that can donate a hydroxide ion.

Please Mark Brainliest If This Helped!

7 0
3 years ago
How do cells prepare for sexual reproduction?
Angelina_Jolie [31]

Answer:

Meiosis

Explanation:

They just split in four.

7 0
3 years ago
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