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Taya2010 [7]
3 years ago
7

Which of the following is true?

Chemistry
2 answers:
tresset_1 [31]3 years ago
4 0

Answer:

B

Explanation:

The sun can be dangerous but it also helps our Earth in a lot of ways

ASHA 777 [7]3 years ago
4 0
B the sun is helpful for our planet but when out of the atmosphere the rays from the sun can be quite harmful
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The Due Process Clause guarantees that
11Alexandr11 [23.1K]
The answer is (A), it was put into place because the government was not being equal with everyone's rights.

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3 years ago
Select all the words that describe what the elements have in common if they are located on the same PERIOD.
Marrrta [24]

Answer:

Orbitals

Shells

Energy Levels

Explanation:

Elements in the same period will have the same energy levels which is the same as orbitals and shells.

  • The period of an element indicates the energy level in an atom.
  • Elements in period 1 will have one energy level or shell or orbitals.
  • Down a group this is not the case.
  • The energy level increases from top to bottom.
  • As we go down the group, we are transiting from one period to another.
4 0
3 years ago
____H2 + ____O2 ---&gt; ____H20<br><br> 2, 1, 1<br> 2, 2, 1<br> 2, 1, 2<br> 1, 2, 2
Tems11 [23]
2H2+O2----->2H2O. I hope this helps
6 0
3 years ago
Read 2 more answers
Tierra is playing in her backyard when she hears her friend calling out to her. She can't see her friend but can hear her friend
mixer [17]

Answer:

diffraction

Explanation:

the correct answer is diffraction

4 0
3 years ago
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A stone is dropped from the roof of a building; 2.00s after that, a second stone is thrown straight down with an initial speed o
Brut [27]
A) -0.5(9.8)*t^2 = -25(t-2) - 0.5(9.8)(t-2)^2 
-4.9t^2 = -25t + 50 - 4.9(t^2-4t+4) 
0 = -25t+50+19.6t - 19.6 
5.4t = 30.4 
t = 5.62962963 s 

b) h = -4.9(5.62962963)^2 
h = -155.2943759 
the building is 155.2943759 m high 

c) speed 0of first stone 
= at 
= 9.8*5.62962963 
= 55.17037037 m/s 
speed of second stone
= v + at
= 25+9.8*3.62962963 
= 60.57037037 m/s
7 0
3 years ago
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