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Tanya [424]
4 years ago
5

Why do i get nightmares when i sleep on my back?

Chemistry
1 answer:
kherson [118]4 years ago
5 0
Sleeping on your back gives you a higher chance for sleep paralysis 
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How do the names of covalent compounds differ from the names of ionic compounds?
Tresset [83]
Covalent bonds<span> are named by using prefixes that give the number of atoms of each element in the </span>compound<span>. </span>Ionic compounds<span> are named by replacing the ending of the nonmetal with ate or ite. 6.

plz brain list me 5 star me thank me but thank you

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5 0
3 years ago
What is the molarity of a solution that is 26.0% by mass in phosphoric acid, H3PO4, and that has a density of 1.155 g/mL?
steposvetlana [31]

Answer: The molarity of a solution that is 26.0% by mass in phosphoric acid is 3.06 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

n = moles of solute

V_s =volume of solution in ml

Given : 26.0 g of phosphoric acid in 100 g of solution.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{26.0g}{98g/mol}=0.265moles

Volume of solution =\frac{\text {Mass of solution}}{\text {Density of solution}}=\frac{100g}{1.155g/ml}=86.6ml

Molarity=\frac{0.265\times 1000}{86.6ml}=3.06M

Molarity of a solution that is 26.0% by mass in phosphoric acid is 3.06 M

8 0
4 years ago
If an object floats in syrup, it will float in oil
Viefleur [7K]
No, it won't. 
It has something to do with density. 
7 0
3 years ago
Read 2 more answers
There are several aromatic compounds with the formula c8h9cl. Draw those that have a monosubstituted ring.
anygoal [31]

Answer:

As shown in the attachment.

Explanation:

In this case, there are two isomers possible. Isomers are compounds that have the same molecular formular but different structural formular.

Considering the hydrocarbon C8H10, which has 8C expected saturated hydrocarbon. however when there is an excess of 8H, we have C8H18 which is the formular of octane, a member of the alkane family and from monosubstitution reaction which involves reaction with halogens (particularly Chlorine), the reaction will be a repeated substitution reaction where chlorine will be replaced with each of the hydrogen.

8 0
4 years ago
In which of these systems is the entropy decreasing?
atroni [7]

I think it is aaaaaaaa I think it's aaa

6 0
4 years ago
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