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Lena [83]
3 years ago
6

student desing an experiment to see if the thermo energy is transfer at the same rate in different liquids the students safely h

eat 2 different room temperatures liquids on a hot plate an measure the temperature after 10 minutes what variable such the student control
Chemistry
1 answer:
Lilit [14]3 years ago
6 0

Answer:

www.doe.virginia.gov/testing/sol/standards_docs/...

Explanation:

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Ibuprofen is a common pain reliever and anti-inflammatory. Its formula is C13H18O2. What percent by mass of ibuprofen is the car
Anarel [89]

Answer:

Explanation:

%Carbon =  mass of carbon / mas of C13H18O2) X100%

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8 0
2 years ago
Which equation shows how to calculate how many grams (g) of KOH would be needed to fully react with 4 mol Mg(OH)2? The balanced
bazaltina [42]
Mole ratio:

MgCl₂ + 2 KOH = Mg(OH)₂ + 2 KCl

2 moles KOH ---------------- 1 mole Mg(OH)₂
moles KOH ------------------- 4 moles Mg(OH₂)

moles KOH = 4 x 2 / 1

= 8 moles of  KOH

molar mass KOH = 56 g/mol

mass of KOH = n x mm

mass of  KOH = 8 x 56

= 448 g of KOH 

hope this helps!

3 0
3 years ago
Read 2 more answers
Is there more or less air near sea level
vampirchik [111]

there is more air near sea level

7 0
2 years ago
How does removing thermal energy from liquid water affect the molecules in the water?
galina1969 [7]

Answer:

For deposition to happen, thermal energy must be removed from the gas. ... As water vapor loses thermal energy, it changes into solid frost. States of Water. Water is the only substance that exists naturally as a solid, a liquid, and a gas within Earth's temperature range.

Explanation:

3 0
2 years ago
What is the complete set of quantum numbers for the fifth electron added to a hydrogen ion?
N76 [4]
1s2 2s2 2p1

fifth electron is in 2p orbital 

so answer is  2 2 -1 -1/2 , or 2 2 -1 1/2

*1/2 and -1/2 are spins, so they are interchangeable when writing the first electron in the ml
8 0
3 years ago
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