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Grace [21]
2 years ago
14

Which of the following lists contains only

Chemistry
1 answer:
Elena-2011 [213]2 years ago
5 0
The answer to the question is D. Zinc, Gold, Aluminum, and oxygen are all elements in the periodic table
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What is the kinetic energy of a 3kg ball that is rolling at 2 meters per second
marissa [1.9K]

Answer:

<h2>6 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 3 \times  {2}^{2}  \\  =  \frac{1}{2}  \times 3 \times 4 \\  = 3 \times 2

We have the final answer as

<h3>6 J</h3>

Hope this helps you

7 0
3 years ago
How do the internal structures of vascular and plants transport food and water.
mariarad [96]
All vascular plants have vascular tissue which allows the transport of water, nutrients and food between the ground and the body of the plant. So your answer would be that the internal structures of vascular plants transport food and water through their vascular tissue. Hope this helps!<span />
4 0
4 years ago
Read 2 more answers
When U-238 undergoes radioactive decay by losing an alpha particle, the other product is
lianna [129]
The correct answer is Th-234
6 0
3 years ago
Read 2 more answers
What term is used for the electrons in the outermost shell or energy level
Romashka [77]

Answer:

Valence Electrons

Explanation:

Valence electrons are the electrons in the outermost shell and can be used to form bonds.

7 0
4 years ago
The eu(iii) standards added to the groundwater sample contained 0.168 ng/ml (ppb) of eu(iii). calculate the concentration of eu(
Andre45 [30]
The standard addition equation is as followsI_(S+X) (V/V_O )=I_X+I_X/[X]_i  [S]_4 (V_S/V_0 ) Here, [X]_i is the initial concentration of analyte, [S]_i is the initial concentration of standard, I_X is signal for analyte, I_(S+X) is signal for standard and analyte, V_0 is the initial volume, V_S is the added standard volume, and V is the total volume.Added volume of standard V_S is-23.3 mL. Initial volume of the sample V_0  is 10.00 mL. Initial concentration of standard ([S]_i) is 0.156 ng/mL.[X]_i= -[S]_i (V_S/V_0 )〖[X]〗_(i )= -(0.156 ng/mL)((-23.3 mL)/(10.00 mL))=0.363 ng/mL
Concentration of U(III) in ground sample is 0.363 ng/mL

6 0
3 years ago
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