Answer:
,jgkgchgchgcchgchg
Explanation:
Use the periodic table from the lesson to answer the following question.
The atomic mass of F is ___.
9
19
10
55
Answer:
19
Explanation:
The number below the element Fluorine is 18.99 which rounds to 19.
Answer:
The atomic mass of F is 19.
Explanation:
Even though you are getting closer to the sun as you ascend into the troposphere, why does the temperature drop?
the lower atmosphere is heated by the ground
warm air stays below cold air
the troposphere is a stable layer
ozone blocks the sunlight
Answer:
Lower atmosphere is heated by the ground.
Which statement best expresses Newton's first law of motion? Group of answer choices Objects are constantly speeding up or slowing down. All objects resist changes to their states of motion. For every action, there is an equal and opposite reaction. The forces that cause objects to move will decrease over time.
Answer:
All objects resist changes to their states of motion.
Explanation:
Sir Issac Newton was an English physicist, mathematician, astronomer and a well known author. Besides, he was a great scientist. Newton discovered many scientific phenomenon and scientific theories in nature.
The most important and famous discoveries of Newton is the Newton's laws of motion. Newtons stated three laws of motion, namely, Newtons 1st law of motion, Newton's 2nd laws of motion and Newton's 3rd law of motion.
According to Newtons's 1st law of motion : A body continues to be in the state of motion or in the state of rest until and unless an external force is applied to it. In other words, all bodies resists changes to the states of their motion or rest.
Which phrase describes air pressure?
Answer: atmospheric pressure
Explanation:
i hope it helps :)
Answer:
The answer B: decreases as altitude decreases
Hope this helps
Explain how you know the charge of a nickel ion given a formula and a name.
If water with a mass of 25.0 grams freezes in a closed system such as a closed glass jar, what is the mass of the formed ice after the water completely freezes?
Yo I need help with 1 and 2
Answer:
1-
A) H2O B) HCO3-
2-
A) NH3 B) SO3-2
Explanation:
The number of atoms of each element before the reaction and the number of
atoms of each element after the reaction must be _______________
A.) 2
B.) 12
C.) 32
D.) 40
Answer:
a
Explanation:
6 times 3 =18
I need help solving all of these problems help plsss! helpppp