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Tresset [83]
3 years ago
7

Bandingkan kesan penyusuan susu ibu dengan penggunaan susu formula terhadapperkembangan bayi.​

Chemistry
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

kau kje nk senang je kan . gi cari jawapan dlm buku la

Explanation:

aku x nk jwb . benda bole cri kt buku . ni la anak zmn skg ni . semua nk mudah

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The density of oxygen gas is 1.429 × 10–3 g/cm3 at standard conditions. What would be the percent error of the average of two se
Igoryamba

Answer:

0.034%

Explanation:

First, let's calculated the average density (da) of the two experimental, which the sum of them divided by 2:

da = \frac{1.112x10^{-3} + 1.069x10^{-3}}{2}

da = 1.090x10⁻³ g/cm³

The relative error is given by the difference of the correct value and the avarege, divided by the correct value:

e = \frac{1.429x10^{-3} - 1.090x10^{-3}}{1.429x10^{-3}}

e = 3.39x10⁻⁴ x 100%

e = 0.034%

6 0
3 years ago
A sugar solution consists of 0.25
leonid [27]

Answer:

Explanation:

Your goal when trying to find a solution's molarity is to determine how many moles of solute you have in one liter of solution.

Notice that your solution has a volume of 100.0 mL. Since

∣∣ ∣∣¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯aa1 L=103mLaa∣∣−−−−−−−−−−−−−−−−

you can say that your solution has a volume that is equivalent to 110th of 1 L. Therefore, the number of moles that will be present in your sample will represent 110th of the number of moles present in 1 L of this solution.

So, use sucrose's molar mass to find the number of moles present in your sample

10.0g⋅1 mole sucrose342.34g=0.02921 moles sucrose

So, if this is how many moles you have in 100.0 mL of this solution, it follows that 1 L will contain

1L solution⋅103mL solution1L solution⋅0.02921 moles100mL solution=0.2921 moles

You get 0.2921 moles of sucrose, you solute, per liter of solution, which means that the solution's molarity will be

molarity=c=∣∣ ∣∣¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯aa0.292 mol L−1aa∣∣−−−−−−−−−−−−−−−−−

The answer is rounded to three sig figs.

Answer link

4 0
3 years ago
Iansiqnsdijsijnweijnjwn
tino4ka555 [31]

Answer:

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Explanation:

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8 0
2 years ago
Read 2 more answers
What is the name for the point at which the indicator changes color in a titration? turning point end point indicator point colo
Sedaia [141]
It says on google
<span>An acid-base indicator (e.g., phenolphthalein) changes color depending on the pH. Redox indicators are also frequently used. A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached, this is an approximation of the equivalence point.</span>
8 0
3 years ago
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Campare and Conteast Physical and chemical properties.
I am Lyosha [343]

Answer:

Physical properties are changes in color, weight, mass, density, volume, whether it is freezing, tarnishing, boiling, etc. while chemical properties are changes in the compound of the object such as whether an object is/isn't flammable, affected by acid, it dissolves, ferments, rots, ignites in water, etc.

Explanation:

Physical property examples: a piece of steel is cut in half, a sugar cube is ground up into a powder, ice melts into water, clouds form in the sky, you mow the lawn, the water turned purple when you dropped red and blue dye in it, leaves grow in the spring, ethyl alcohol boils at 79° C, you cut apples up

Chemical property examples: pancakes cook on the griddle, fireworks explode in th sky, Alka-Seltzer gives off carbon dioxide when added to water, roasting a marshmellow, milk sours when left on the counter, burning wood in a bonfire, salt dissolves in water, food is digested in the stomach

3 0
3 years ago
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