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3 years ago

Which of the following is usually done last in the scientific method of investigation?

Chemistry

2 answers:

Kitty [74]3 years ago

8 0

The answer is C because you must do all the other things first to get to the that’s part hope that helps

lisov135 [29]3 years ago

5 0

Answer:

Analyze data and draw conclusions

Explanation:

because i got it right

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Determine if the bond between each pairs of atoms would be pure covalent, polar covalent, or ionic. n and se

Sveta_85 [38]

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

Less than 0.4 then it is Non Polar Covalent Bond

Between 0.4 and 1.7 then it is Polar Covalent Bond

Greater than 1.7 then it is Ionic

For N and Se,

E.N of Nitrogen = 3.04

E.N of Selenium = 2.55

________

E.N Difference 0.49 (Weakly Polar Covalent)

As you have not provided remaining pairs, so if you have any of them, follow the method as mentioned above.

3 0

3 years ago

How hot, in degrees Celsius, would the air inside the balloon have to get in order for the balloon to lift off the ground? Assum

SVETLANKA909090 [29]

Answer:

The temperature in degress Celsius is 52.25°C

Explanation:

According the equation:

$V(\rho _{a} -\rho _{t})g=mg\\\rho _{a} -\rho _{t}=\frac{n}{V} =\frac{340}{2950} =0.115kg/m^{3}$

$\rho _{t}=\rho _{a} -0.115=1.2-0.115=1.085kg/m^{3}$

The temperature is:

$T=\frac{P}{\rho _{t} R} =\frac{1.013x10^{5} }{1.085*287.05} =325.25K=52.25$ °C

3 0

3 years ago

Which of the following best describes the location of element Tin?

Tomtit [17]

Answer:

The location of element tin is

Group 14, Period 5

Explanation:

7 0

2 years ago

Read 2 more answers

Which of these, all of which include earth, most likely contains the most dark matter

mixer [17]

Answer:

Plasma

Explanation:

8 0

2 years ago

What is an alkene?

sladkih [1.3K]

Answer:

A hydrocarbon containing a carbon - carbon double bond.

Explanation:

Alkene is hydrocarbon containing a

carbon - carbon double bond.

( Refer the attachment to understand more clearly )

7 0

1 year ago