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vovikov84 [41]
2 years ago
12

Which of the following is an advantage of using an electronic balance instead of a triple beam balance?

Chemistry
1 answer:
Olin [163]2 years ago
8 0
D, all of these. (this is to reach the word limit on answers ignore it)
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PLEASE HELP??<br> Describe how the periodic table differentiates between metals and nonmetals.
Dovator [93]
Metals are the majority of the periodic table. Also, they are on the left side of the periodic table. The no metals are on the right side of periodic table.
Hope I Helped!
4 0
3 years ago
What is the wavelength in meters of a proton (mass = 1.673 x 10-24 g) that has been accelerated to 5% of the speed of light?
Molodets [167]

Explanation:

since it has been accelerated to 5℅ of the sleec of light then

v= 5/100 × (3× 10^8)

after getting velocity you'll substitute the values in the formula

de Broglie wavelength= h/mv

don't forget to change the grams in mass to kg

aorry I don't hav my calc with me

4 0
3 years ago
From the unbalanced reaction: B2H6 + O2 ---&gt; HBO2 + H2O
Drupady [299]

Answer: 125 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} B_2H_6=\frac{36.1g}{17}=1.30moles

The balanced reaction is:

B_2H_6+3O_2\rightarrow 2HBO_2+2H_2O

According to stoichiometry :

1 mole of B_2H_6 require = 3 moles of O_2

Thus 1.30 moles of B_2H_6 will require=\frac{3}{1}\times 1.30=3.90moles  of O_2

Mass of O_2=moles\times {\text {Molar mass}}=3.90moles\times 32g/mol=125g

Thus 125 g of O_2 will be needed to burn 36.1 g of B_2H_6

4 0
3 years ago
Astronauts go to live on the International Space Station for a period of ________ month(s). A one B three C six D nine
kumpel [21]

Answer:

The answer is C. six months

Explanation:

I hope this helps you bestie:))

3 0
3 years ago
Which statements about light are true? Select all the correct answers A.It can travel through empty space B.It has no mass C.It
cestrela7 [59]

Answer:

A. It can travel through empty space

Explanation:

Unlike sound it light can travel at an empty space or vacuum.

Hope it helps <3 and Amen.

5 0
4 years ago
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