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Marina86 [1]
3 years ago
13

Which items below are properties of matter? [select all that apply]

Chemistry
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

Solubility, length, hardness, color, mass, density, weight, volume, boiling, and point.

Explanation: Hope this helps

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Given example of the model used in science that is larger than the real object and an example of a model that is smaller than th
e-lub [12.9K]
The model of the solar system is way smaller than the real object. The model of sub-atomic particles in a atom is way larger than the real object. 
7 0
3 years ago
A chemist prepares a solution of silver(I) nitrate AgNO3 by measuring out ×4.7102μmol of silver(I) nitrate into a 450.mL volumet
Veseljchak [2.6K]

The concentration in /mmolL of the chemist's silver(I) nitrate solution is 0.01047 mmoles/litre.

Explanation:

Data given:

Number of moles of AgNO3 in micro mole 4.7102micromol.

The concentration is supposed to be in mmol so the micromole will be converted to milimole.

So, 1 micromole = 0.001 millimole

hence, 4.712micromole will be 0.004712 millimole.

Volume is given as 450ml which is converted into L

to convert ml into L it is divided by 1000

so 0.45 L is the volume.

Molarity or concerntration is calculated by the formula,

molarity = \frac{number of moles}{volume in litres}  

putting the values in the formula:

molarity = \frac{0.0047103}{0.45}

              = 0.01047 mmoles/litre is the molarity of AgNO3 solution in 450 ml of solution.

3 0
4 years ago
How many moles are in 454 grams of dinitrogen trioxide (N2O3) ?
balu736 [363]

Answer:

5.97 mol

Explanation:

To find the number of moles when given the mass of a substance, we divide the mass of the sample by its molar mass.

so, we get,

nN203 = 454 g / 76.01 g /mol

= 5.97 mol

6 0
3 years ago
Arrange the bonds between H, O, and F from most polar to least polar based on electronegativity.
Andrews [41]

Answer:

H-F> H-O> O-F

while H-H is nonpolar.

Explanation:

The bond is polar when electronegativity difference of both bonded atom is greater than 0.4.

Electronegativity values of O. F and H are

O = 3.4

H = 2.2

F = 3.98

For O-F

3.98 - 3.4 = 0.58

For H-F

3.98 - 2.2 = 1.78

For H-O

3.4 - 2.2 =  1.2

For H-H

2.2 -2.2 = 0

So H-H is nonpolar.

7 0
3 years ago
Subscripts in chemical formulas are used to indicate the relative proportions of the elements in a
damaskus [11]

Answer:

relative proportions of the elements in a chemical reaction

5 0
3 years ago
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