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juin [17]
3 years ago
10

What would you need to find an objects mass and velocity? what tools would you ude?

Chemistry
1 answer:
MatroZZZ [7]3 years ago
8 0

You need to find the momentum. The tools you would use are celestial objects, and a triple-beam balance.

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How to tell the difference between polar and nonpolar covalent bonds?
NemiM [27]
You need to look at the electronegativity and decide wheter the difference of both of the numbers are significant enough to form a polar bond
3 0
3 years ago
A certain element exists as two different isotopes. 65.0% of its atoms have a mass of 24 amu and 35.0% of its atoms have a mass
Sauron [17]

Answer:

24.7 amu

Explanation:

An isotope is when an element can have different number of neutrons but they have same number of protons.

In order to calculate the average atomic mass with the given information do the following operations:

First change de percentages to fractional numbers, divide by 100.

I like to make a table, to organize all data and I believe is easier to understand.

65/100 = 0.65

35/100 = 0.35

% fraction

65.0 0.65

35.0 0.35

total100.0 1

Now multiply each mass with their corresponding fraction

24 (0.65) = 15.6

26 (0.35) = 9.1

%    fraction uma uma

65.0 0.65 24 15.6

35.0 0.35 26 9.1

total100.0    1          24.7

Finally you add the resulting mass and the units will be in uma.

15.6+9.1 = 24.7

Therefore the average atomic mass of this element will be 24.7 uma.

Check the table in the document attached

Download xlsx
4 0
3 years ago
How does salt help melt the road?​
QveST [7]

Lower the melting point

Explanation:

Salts helps to melt road by lowering the melting point. It acts as an impurity and generally, impurities low the melting point of substances.

Salts are used as an antifreeze.

  • Water freezes at 0°C and forms ice/snow which can impede human and vehicular movement.
  • When salt is added, it causes the depression of the freezing point by lowering it further.
  • The freezing point is pegged back at -6°C.
  • This way it takes more low temperature to freeze the water.
  • The salt acts as an impurity and causes the depression of melting point and widening of the melting range.

learn more:

Matter brainly.com/question/10972073

#learnwithBrainly

8 0
3 years ago
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Some bleaches contain hydrogen peroxide as their active ingredient, while others contain sodium hypochlorite. Both these chemica
pshichka [43]
B) oxygen, because oxygen is the only element that is in both chemical formulas.
3 0
3 years ago
(A)What type of cloud forms at high altitudes and is wispy and feathery.
posledela
A) Answer D. Clouds forming high in the atmosphere are referred to as cirrus, cirrostratus, and cirrocumulus. 

B) Clouds tend to form at higher altitudes because as<span> air rises, the moisture in it slowly reaches its saturation point and when this happens, tiny crystals of water start to condense and form clouds.

C) Precipitation: Water that falls to the ground from clouds, such as in rain, snow, sleet, or hail.</span>
5 0
3 years ago
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