1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
3 years ago
12

30 POINTS TO WHOEVER CAN FIGURE IT OUT!!When is the sun directly overhead at the equator?

Chemistry
2 answers:
tresset_1 [31]3 years ago
8 0

Answer:

D

Explanation:

The sun is directly overhead at the equator during the vernal (usually March 20) and autumnal (around September 23) equinoxes.

Basically, what happens is that on these two days, day and night practically last for an equal number of hours.

Hope this helps!

Andre45 [30]3 years ago
3 0

Answer:

D) Vernal and autumnal equinoxes.

You might be interested in
Water (2110 g ) is heated until it just begins to boil. if the water absorbs 551000. j of heat in the process, what was the init
Sunny_sXe [5.5K]
Answer:
42.9
∘
C
Explanation:
The idea here is that the problem is providing you with the amount of heat needed to raise the temperature of a given sample of water from an initial temperature to its boiling point, i.e. to 100
8 0
3 years ago
What makes a glass different from a solid such as quartz? Under what conditions could quartz be converted into glass?
UNO [17]

Answer: arrangement of constituent particles makes glass diff. from quartz. Glass-short range order of particles.
Quartz-Long range of particles.

If quartz is heated and cooled rapidly it can be converted to glass.

8 0
2 years ago
¿Cuál es la cantidad de electrones (e-) de Níquel si tiene una masa atómica de 58.6 y un número
daser333 [38]

Answer:

Hi do we translate a this

Explanation:

4 0
2 years ago
A sample of an uranium compound is found to be losing mass gradually. Explain what is happening to the sample.​
yan [13]

Answer:

The uranium in the sample of the compound is radioactive

Explanation:

Some atoms can split on their own. Some split when bombarded by energetic particles. Such atoms are said to be radioactive.

Radioactivity is borne out of the drive of an atom to reach stabillity. Every atom have a specific neutron/proton ratio which ensures stability of the nucleus. A nucleus with a stability ratio different from that which makes it stable will become unstable and split into one or more other nuclei with emissons of energetic particles.

Note: neutrons and protons dictates the mass of an atom. They are located in the nucleus which is the site for nuclear radioactive reactions.

4 0
3 years ago
If sodium is burned in chlorine gas, a compound is formed that dissolves in water. What colour will the solution be?
Alchen [17]

If sodium is burned in chlorine fuel, a compound is formed that dissolves in water. the solution be: Bright yellow mild

Chlorine is a yellow-green gas at room temperature. Chlorine has a smelly, annoying scent similar to bleach that is detectable at low concentrations. The density of chlorine gasoline is about 2.5 times extra than air, so one can reason it to initially stay near the floor in regions with little air movement.

Chlorine gasoline can be recognized by using its smelly, anxious smell, which is like the scent of bleach. The sturdy scent may additionally provide a good enough caution to human beings that they have been uncovered. Chlorine fuel appears to be yellow-green in color. Concentrations of approximately 400 ppm and past are commonly fatal over a half-hour, and at 1,000 ppm and above, fatality ensues within only some mins. A spectrum of scientific findings can be present in those uncovered to excessive tiers of chlorine.

Learn more about Chlorine here:

brainly.com/question/25190915

#SPJ1

6 0
8 months ago
Other questions:
  • Scott is making a chart to show the difference between chemical reactions and nuclear reactions. Which part of his chart is inco
    9·2 answers
  • In the laboratory, a quantity of I2 was reacted with excess H2 to give 1.26 moles of HI. It is also known that the percent yield
    8·1 answer
  • in dimesional analysis, if an electric vehicle gets 4 miles/ kWh and the utility company charges 12 cents per kWh for charging i
    7·1 answer
  • Ionic compounds are electrically overall thereofre the sum of
    5·1 answer
  • In a face-centered cubic structure, every atom has twelve neighbors. which arrangement of balls serves as the best model for thi
    13·1 answer
  • A graduated cylinder is filled with 54.32 cm3 of water. An irregular solid made of iron is carefully placed into the graduated c
    12·1 answer
  • When ethylbenzene is treated with NBS and irradiated with UV light, two stereoisomeric compounds are obtained in equal amounts.
    11·1 answer
  • You are assigned the task of separating a desired granular material, with a density of 3.26 g/cm3, from an undesired granular ma
    9·1 answer
  • How do plants store glucose?
    7·1 answer
  • The atomic particle with a charge of -1.6 x 10-19 C is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!