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timurjin [86]
3 years ago
13

When the temperature in a room increases from 25c to 33c what changes from a solid to a liquid

Chemistry
2 answers:
Contact [7]3 years ago
8 0
58 would be your answer
Anastasy [175]3 years ago
3 0

Answer:

Gallium

Explanation:

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What molarity is prepared when a solution contains 0.277 moles of calcium bromide in 500 mL of solution (must change mL to Liter
Vladimir79 [104]

Answer:

0.554M of Calcium Bromide

Explanation:

Molarity by defintion is #of moles of something/litres of solution.

Therefore, here, we have 0.277 moles of calcium bromide and 500mL (divide 500ml by 1000 to go from mL to L because for every 1L there's 1000mL) or 0.5L.

Molarity= 0.277/0.5 = 0.554M of Calcium Bromide

5 0
3 years ago
How many grams of sodium chloride are present in a 0.75 M solution with a volume of 500.0 milliliters?
LUCKY_DIMON [66]
The units for molarity is moles of solute per liter of solution which means if you multiply the molarity of a solution by its volume you get how many moles of solute are in the solution. (0.75Mx0.5L=0.375mol NaCl) Then you can multiply the moles of sodium chloride (0.375 mol) by its molar mass (58.45 g/mol) to get 21.92g of sodium chloride. That means there is 21.92 grams of sodium chloride in 500mL of 0.75M solution. I hope this helps. Let me know if anything is unclear.
6 0
2 years ago
Helppp meee Please
Fynjy0 [20]

Answer:

what do you need help with?

Explanation:

5 0
3 years ago
At the county fair, Carrie and Sam climbed up on the carousel horses. Around and around they went; the horses also bobbed up and
grigory [225]
I believe sam's response is correct.
When human is riding a moving target with constant speed over a period of time, we tend to have  a visual acceleration perception due to our optical movement.
This make people such as Carrie believes that the carousel horses are accelerating while it actually stayed at constant pace.
3 0
3 years ago
How do you solve this ?NH4+NO4->N2+O2+H2O2
ololo11 [35]
I'm assuming you wanted this equation balanced? If you typed it correctly, it's already balanced for you. :)
8 0
3 years ago
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