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bekas [8.4K]
3 years ago
14

A moving object collides with a stationary object. Which of the following statements is true according to Newton’s third law of

motion?
Chemistry
1 answer:
andriy [413]3 years ago
4 0

Answer:

the object it bumped into will have the same volocity as the moving object the collided with it

Explanation:

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How do molecular bonds form?
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Answer:

"A molecular, or covalent bond, is formed when atoms bond by sharing pairs of electrons. This sharing can occur from atom to atom, or from an atom to another molecular bond."

Explanation:

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What species in the food web feed on algae?
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Answer:

frogs, fish and aquatic (water-dwelling) insects

Explanation:

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Compare the number of valence electrons in an atom of oxygen, o, with the number of valence electrons in an atom of selenium, se
Fiesta28 [93]
Oxygen and selenium both have 6 valence electrons. They're in the same group hope this helps
4 0
3 years ago
A metal ion Mⁿ⁺ has a single electron. The highest energy line in its emission spectrum occurs at a frequency of 2.961 x 10¹⁶ Hz
Whitepunk [10]

Answer:

z≅3

Atomic number is 3, So ion is Lithium ion (Li^+)

Explanation:

First of all

v=f*λ

In our case v=c

c=f*λ

λ=c/f

where:

c is the speed of light

f is the frequency

\lambda=\frac{3*10^8}{2.961*10^{16}}\\ \lambda=1.01317*10^{-8} m

Using Rydberg's Formula:

\frac{1}{\lambda}=R*z^2*(\frac{1}{n_1^2}-\frac{1}{n_2^2})

Where:

R is Rydberg constant=1.097*10^7

z is atomic Number

For highest Energy:

n_1=1

n_2=∞

\frac{1}{1.01317*10^{-8}}=1.097*10^{7}*z^2*(\frac{1}{1^2}-\frac{1}{\inf})\\z^2=8.99\\z=2.99

z≅3

Atomic number is 3, So ion is Lithium ion (Li^+)

3 0
3 years ago
If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp
WINSTONCH [101]
Beaker of water i guess because usually at home when i get out cold water i put in my room and it cools fast for me so..... i think
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3 years ago
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