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Leviafan [203]
4 years ago
9

Why does filling a balloon with baking soda, getting a cup and put vinegar it in, and mix them together, represent a closed syst

em
Chemistry
1 answer:
AleksAgata [21]4 years ago
7 0
Because there is a balloon to stop everything from coming out
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Which liquids are highly sensitive to both changes in temperature and changes in the electrical field?
Mumz [18]
Liquid crystal molecules have very unique structures, allowing them to be highly affected by electric fields, changing their orientation in the liquid crystal structure. This is why they are used in LCD screens. They are also highly sensitive to changes in temperature. Therefore the answer is C.
Hope this helps!
3 0
3 years ago
Read 2 more answers
If you start with 10.0 grams of lithium hydroxide how many grams of lithium bromide will be produced
mamaluj [8]
If you mean LiOH+HBr->LiBr+H2O
the answer is 0.4347mol LiBr and that equals (10/23)/80 gram LiBr

4 0
4 years ago
When 0.250 moles of LiCl are added to 200.0 g of water in a constant pressure calorimeter a temperature change of +11.08°C is ob
Nonamiya [84]

Answer:

3.91 × 10⁴ J/mol

Explanation:

We can calculate the heat of solution using the following expression.

Q = c × m × ΔT

where,

c is the specific heat capacity of the solution

m is the mass of the solution

ΔT is the change in the temperature

The mass of LiCl is:

0.250mol.\frac{42.39g}{mol} =10.6g

The mass of the solution is:

m = mLiCl + mH₂O = 10.6 g + 200.0 g = 210.6 g

Q = c × m × ΔT = (4.184 J g⁻¹ °C⁻¹) × 210.6 g × 11.08 °C = 9763 J

In a constant pressure calorimeter, the molar enthalpy of solution for LiCl is:

\Delta H_{sol}=\frac{9763J}{0.250mol} =3.91 \times 10^{4} J/mol

3 0
3 years ago
Wich body system makes the energy in food usable for the body to carry out its activities
Grace [21]
It should be the digestive system as it absorbs the nutrients of the food into your body.
4 0
4 years ago
Find the mass of 3.89 mol of NaF.<br> Please show the work if you can!
mylen [45]

Answer:

163.3339937848 grams

Explanation:

this the solution

8 0
3 years ago
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