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zvonat [6]
4 years ago
10

Please help!! I don't get this ...

Chemistry
1 answer:
Karolina [17]4 years ago
8 0
Since each of the substances conduct electricity except A, it is the least likely to be metallic. Additionally, it is a powder, which is unlike most metals, and has an extremely high melting point much above many metal substances and very different from the other substances tested.
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Answer:

A scatter plot shows the relationship between two quantitative variables. These variables may be positively related, negatively related, or unrelated: Positively related variables indicate that. When one variable increases, the other variable tends to increase.

7 0
3 years ago
Vote you brainiest please help me
Nezavi [6.7K]

Okay happy to help<3

so the answer is C beacuse the fricton is making the ball roll smoothly on the wooden floor

good luck :)

8 0
3 years ago
What happens when sugar disolves in water?
Elis [28]

First, the sugar dissolves into small sugar molecules, Then fills in the spaces in between the water molecules thus, making Sugar water.

I hope that answered your question and has come to your help.

4 0
4 years ago
Read 2 more answers
A solution of H 2 SO 4 ( aq ) with a molal concentration of 1.66 m has a density of 1.104 g / mL . What is the molar concentrati
uysha [10]

Answer:

1.58 M

Explanation:

H_2SO_4 is 1.66 m concentration.

Which means that 1.66 moles of  H_2SO_4 are present in 1 kg of the solvent, water.

Mass of water = 1 kg = 1000 g

Moles of H_2SO_4 = 1.66 moles

Molar mass of H_2SO_4 = 98.079 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

1.66\ mole= \frac{Mass}{98.079\ g/mol}

Mass_{H_2SO_4}= 162.81114\ g

Total mass = 1000 g + 162.81114 g = 1162.81114 g

Density = 1.104 g/mL

Volume of the solution = Mass / Density = 1162.81114 / 1.104 mL = 1053.27 mL = 1.05327 L

Considering:-

<u>Molarity = moles/ Volume of solution = 1.66 / 1.05327 M = 1.58 M </u>

4 0
3 years ago
Draw a model of Earth’s orbit around the Sun that explains why Earth has four seasons. Be sure to show the tilt of Earth’s axis.
poizon [28]
Seasons
The earth revolves around the sun, sunlight. hits different parts of the earth, causing yearly changes in climate. called seasons
Summer
Spring
One year
Sun
Winter
*Southern Hemisphere seasons
Autumn
4 0
3 years ago
Read 2 more answers
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