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3 years ago

Juan and Tanisha wanted to build a track for their marbles. They wanted to see how fast their marbles would run down one

Chemistry

1 answer:

frutty [35]3 years ago

4 0

Answer:

Explanation:

i took the test

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Why are the electrons in a nitrogen-phosphorus covalent bond not shared equally? which atom do the electrons spend more time aro

a_sh-v [17]

<span>Electrons in a nitrogen-phosphorus covalent bond are not shared equally because nitrogen and phosphorus do not have the same electronegativity. The atoms spend more time around the most electronegative atom nitrogen.</span>

6 0

4 years ago

A 60 and N net force is applied to a 12 kg box which is the acceleration of the box?

GarryVolchara [31]

The relation between force and mass and acceleration is

$Force = mass X acceleration$

The SI unit will be

Force = Newton

mass =kg

acceleration= $\frac{m}{s^{2} }$

thus

$acceleration = \frac{Force}{mass}$

putting values

$acceleration=\frac{60 N}{12kg}=5\frac{m}{s^{2} }$

Thus the acceleration will be

$5\frac{m}{s^{2} }$

6 0

3 years ago

Antoine put some metal into a container with air. He closed the container. He measured the weight of the closed container with t

Mandarinka [93]

Answer:

the same

Explanation:

due to the law of conservation of mass, the mass will not change

7 0

3 years ago

C12H22011+1202-->12CO2+11H20

kogti [31]

Answer:

0.185moles

Explanation:

Given parameters:

Volume of O₂ = 49.8L

Unknown:

Number of moles of sucrose required = ?

Solution:

We can assume that the reaction takes place at standard temperature and pressure.

From this, we can find the number of moles of oxygen that reacted and extrapolate to that of sucrose.

Chemical equation;

C₁₂H₂₂0₁₁ + 120₂ → 12CO₂ + 11H₂0

Number moles = $\frac{volume of gas}{22.4}$ at STP

Number of moles of oxygen gas = $\frac{49.8}{22.4}$ = 2.22moles

12 moles of oxygen gas combines with 1 mole of sucrose

2.22 moles of oxygen gas will combine with $\frac{2.22}{12}$ = 0.185moles

4 0

3 years ago

Silicon has a relatively large latent heat of vaporization of 12800 J/g. This indicates that silicon has:

beks73 [17]

I believe it means that it takes a lot of heat in joules to make silicon vaporize so it stays solid until a great deal of heat has been added. By comparison, water has a latent heat of about 2260 joules per gram so vaporizes much more readily than silicon.

3 0

3 years ago