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Schach [20]
4 years ago
12

Is this true? A substance is a single kind of matter that has a specific composition.

Chemistry
1 answer:
scZoUnD [109]4 years ago
8 0
Yes that is true, it can also simply be defined as a certain material.
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A soft drink is made by dissolving CO2 at 3.00 atm in a flavored solution and sealing the solution in an aluminum can at 20oC. W
erastovalidia [21]

Answer:

Volume is 1.065L

Explanation:

Hello,

We can easily solve this problem by using general gas equation.

PV / T = K

P1V1/T1 = P2V2/T2

Data;

P1 = 3.0atm

P2 = 1.0atm

T1 = 20°C = (20 + 273.15)K = 293.15K

T2 = 20°C = (20 + 273.15)K = 293.15K

V1 = 355mL = 0.355L

V2 = ?

From the data given, we can substitute it into the equation,

(P1 × V1) / T1 = (P2 × V2) / T2

(3.0 × 0.355) / 293.15 = (1.0 × V2) / 293.15

1.065 = 1.0V2

Divide both sides by 1.0

V2 = 1.065L

The volume of CO₂ released is 1.065L

3 0
4 years ago
Which statements describe aspects of what causes wind to blow? Wind is caused by differences in air pressure. Wind moves from lo
soldier1979 [14.2K]

Answer:

The Correct Answer is A and C.

Explanation:

  • The wind is the movement of air, the movement of air is happened by the difference in pressure.
  • A difference in air pressure is what causes the wind to blow. Difference in pressure is happened by the uneven heating of the earth's surface.
  • The wind is normally moving air from a high air pressure place to a low air pressure place.
  • The greater the difference in air pressure the stronger the wind blow.

5 0
3 years ago
Read 2 more answers
Place the following elements in order of increasing electronegativity.K Cs PA. K < P < CsB. P < Cs < KC. Cs < K &
skad [1K]

Answer:

C. Cs < K < P

Explanation:

Electronegativity is the basically the tendency of an atom to attract electrons. The pauling scale is used to quantify electronegativity, the most electronegative element; fluorine has a value of 4.0 and francium, the least electronegative element has a value of 0.7

The electronegative values of the following elements are given as;

K = 0.82

Cs =0.79

P = 2.19

Arranging in order of increasing electronegativity, we have;

Cs < K < P. The correct option is;

C. Cs < K < P

5 0
3 years ago
Nick made orange juice by mixing orange juice concentrate with water. Nick’s friend said that the orange juice tasted very dilut
grin007 [14]
The statement means that there’s too much water in relation to the orange concentrate.

So next time he should add less water/more juice.
6 0
3 years ago
In the lab, it is relatively easy to measure the activity of a sample and to estimate the mass of carbon in the sample. from the
miss Akunina [59]
It is not possible to find the age of a sample when just knowing activity of the sample and mass of the sample.
3 0
3 years ago
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