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Effectus [21]
3 years ago
9

Please can someone explain the experiment?

Chemistry
1 answer:
Lesechka [4]3 years ago
6 0
Ghhfgfgvfgvvfgggggsguydygg if ffhgyhh
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CO2, NaCI, and HCI may all be classified as...
NARA [144]

the answer would be b. compounds.

4 0
3 years ago
Read 2 more answers
A scientist is tracking an object orbiting the sun that is found between mars and Jupiter. Which additional feature can be used
dedylja [7]

Answer:

Size is the additional feature that determines asteroids.

Explanation:

Asteroids are small, rocky objects that orbit the sun. Although asteroids orbit the sun like planets, they are much smaller than planets. There are lots of asteroids in our solar system. Most of them live in the main asteroid belt which is a region between the orbits of Mars and Jupiter.

4 0
3 years ago
The ksp of pbi2 is 1.4 x 10-8. what is the molar solubility of lead(ii iodide in a solution of 0.400 m sodium iodide?
tino4ka555 [31]
The solubility product of a substance us calculated by the product of the concentration of the dissociated ions in the solution raise to the stoichiometric coefficient of the ions. Therefore, we need the dissociation reaction. For this, it will have the reaction:

PbI2 = Pb^2+ + 2I-

We solve as follows:

Ksp = [Pb2+][I-]^2 = <span>1.4 x 10-8
</span><span>1.4 x 10-8 = x(2x)^2
</span><span>1.4 x 10-8 = 4x^3
x = 1.5x10^-3 M

The molar solubility would be </span>1.5x10^-3 M.
8 0
3 years ago
Compound A reacts with Compound B to form only one product, Compound C, and it's known the usual percent yield of C in this reac
frez [133]

Given :

Compound A reacts with Compound B to form only one product, Compound C.

The usual percent yield of C in this reaction is 40%.

10.0 g of A are reacted with excess Compound B, and 6.4 g of Compound C

To Find :

The theoretical yield of C.

Solution :

We know, % yield is given by :

\%\ yield = \dfrac{actual\ yield}{theoretical\ yield }\times 100

Putting given values , we get :

40 = \dfrac{6.4}{theoretical\ yield }\times 100\\\\theoretical\ yield=\dfrac{6.4\times 100}{40}\\\\theoretical\ yield=16\ g

Therefore, theoretical yield of C is 16 g.

Hence, this is the required solution.

7 0
3 years ago
Calculate the number of Calories present in a chocolate chip cookie that contains 19 g carbohydrate, 3 g protein, and 9 g fat.
agasfer [191]
Im unsure :( maybe try looking up a calorie calculator
5 0
3 years ago
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