Explanation:
Rotting, withering, heat and light emission, precipitate formation, gas evolution, or a change of appearance.
Answer:
h20 (water duh)
C9H13N (Amphetamine)
C6h1206 (glucose)
Please help me with this question
Answer:
B
Explanation:
When an apple falls from a tree, when does gravity act on the apple?
can you please help. I don't know how to do it.
The area used to be covered by an ocean
This mountain top is covered with trees. A forestry company wants to remove the trees for lumber.
Which will most likely happen to the rocks on the mountain if the trees are removed?
A. Wind and rain will begin to erode the rocks and the mountain will flatten over time. B. New trees will grow back very quickly and the mountain rocks will not be changed. C. The mountain will quickly become much smaller without the protection of the trees.
D. The mountain will grow as additional sedimentary rocks are formed.
I think it's A
Explanation:
I don't really got an explanation i just have the feeling
Is there a relationship between cohesion and volume?
In a __________________ reaction, elements are not changed, just rearranged. Small amounts of energy take place.
a. Endothermic
b. Exothermic
c. Nuclear
d. Chemical
Melvin is exploring the different kinds of changes that can happen to substances. After reading about the kinds of changes that occur, he saw some rust on a pipe that was going into his house. What kind of change is the formation of rust?
A.reactant
B.physical
C.chemical
Answer:
It is B. physical.
Explanation:
The rust on the pipe is something causes by something, which mean it is physical. Hope this helped you out!!
Have a wonderful day! :D
Answer please 10 points science queasy
Answer:
B
Look up cumulonimbus clouds it looks like b
The Dust Bowl was a time In the 1930s when prairie states in the Midwest had farmlands torn apart by wind erosion and storms. This disaster caused food shortages and financial hardship. What practice is most helpful to prevent another similar tragedy?
A. no-till farming to allow roots to hold soil together
B. over watering of fields to keep soil wet
C. terrace farming by putting walls up on hills
D. agricultural reform to change the types of crops planted
Answer:
C
Explanation: The dust bowl killed many crops resulting to low nutrients
Why do you think the Na+ ion is smaller than a neutral Na atom? Why do you think the Cl - ion is larger than a neutral Cl atom?
Answer:
Na+ ion is smaller than a neutral Na atom in the ion there was one more proton which will attract electron bring it closer to the center making the atomic radius smaller. Therefore making a Na+ ion is smaller than a neutral Na atom Explanation:
yes
Why does the Earth spin faster at the equator than the poles?
a
Due to the temperature differences on Earth, the land/sea near the equator goes at a faster rate. The Earth spins faster there only during the summer months.
b
The Earth is much wider at the equator than at the poles. It must cover a larger distance in the same amount of time (24 hours).
c
Due to the tilt of the Earth on its axis, the equator gets more sunlight -- therefore making it spin faster.
Answer:
Specifically, Earth rotates faster at the Equator than it does at the poles. Earth is wider at the Equator, so to make a rotation in one 24-hour period, equatorial regions race nearly 1,600 kilometers (1,000 miles) per hour. Near the poles, Earth rotates at a sluggish 0.00008 kilometers (0.00005 miles) per hour.
the atomic number of an element is the number of ______ plus the number of _____ found in the element's nucleus.
Answer:
protons and electrons
Explanation:
The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.
Help me with this please! Do not say "I don't know" to get my points!!!!!!! It is not helpful and disrespectful. THANKS!
no- and na- nano5
na- and na+ nana2
hope this helps
Explanation: