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Maksim231197 [3]
4 years ago
14

What is an alkali metal?​

Chemistry
1 answer:
Elodia [21]4 years ago
6 0

Answer:

They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.

Explanation:

any of the elements lithium, sodium, potassium, rubidium, cesium, and francium, occupying Group IA

You might be interested in
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine
Viefleur [7K]

Answer:

16.2 J

Explanation:

Step 1: Given data

  • Specific heat of liquid bromine (c): 0.226 J/g.K
  • Volume of bromine (V): 10.0 mL
  • Initial temperature: 25.00 °C
  • Final temperature: 27.30 °C
  • Density of bromine (ρ): 3.12 g/mL

Step 2: Calculate the mass of bromine

The density is equal to the mass divided by the volume.

ρ = m/V

m = ρ × V

m = 3.12 g/mL × 10.0 mL

m = 31.2 g

Step 3: Calculate the change in the temperature (ΔT)

ΔT = 27.30 °C - 25.00 °C = 2.30 °C

The change in the temperature on the Celsius scale is equal to the change in the temperature on the Kelvin scale. Then, 2.30 °C = 2.30 K.

Step 4: Calculate the heat required (Q) to raise the temperature of the liquid bromine

We will use the following expression.

Q = c × m × ΔT

Q = 0.226 J/g.K × 31.2 g × 2.30 K

Q = 16.2 J

7 0
3 years ago
What is the IUPAC name
PolarNik [594]
Organic chemical compounds as recommended by the (IUPAC)
8 0
3 years ago
Oooooooooooooooooooooooooooooooooooooooo
cupoosta [38]
Oooooooooooooooooooooooooooo
4 0
3 years ago
WILL MARK AS BRAINLIEST
saveliy_v [14]

Answer: Heat

Explanation:

when there is enough air in the balloon that is when the crew would blast the burner into the envelope mouth building the pressure until the balloon inflates until it starts to lift off the ground and as the air builds up the balloon will lift right off the ground

4 0
3 years ago
PLEASE HELP QUICK
ludmilkaskok [199]

Answer:

Okay, I think I may actually have an answer for you. I would go with C, "The number of particles able to undergo a chemical reaction is less than the number that is not able to."

Explanation:

I just took a quiz with a similar question, and B is the only gas particle that is able to react. This cancels out all the other answers, as A and B are obviously incorrect based on that information, and it rules out D because T1 is the only sample with a particle able to react. I hope this helps!

8 0
3 years ago
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