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
abruzzese [7]
3 years ago
14

Help me please!! :D​

Chemistry
1 answer:
dem82 [27]3 years ago
4 0

Answer: Solar eclipse

Explanation:

You might be interested in
Which of these is an example of how engineers have contributed to society?
Komok [63]

Answer:

B.

Explanation:

One of the biggest examples of engineers' contribution to society is they link different communities together through transport infrastructure.

The seven-mile bridge was an engineering wonder. Seven Mile Bridge connects two cities of the Florida Keys that include Knight's Key and Little Duck Key and promotes the transportation of goods or several other services which was not possible at that time (1900s).

It is the longest bridge in the world and is constructed by using the “segmental” technique and engineers were acknowledged for their work.

Hence, the correct option is B.

6 0
3 years ago
Explain how the climate in a specific region differs during El Niño and La Niña. Please answer in your own words.
solmaris [256]

Answer:girl and boy

Explanation:

7 0
4 years ago
A balance and a graduated cylinder are used to determine the density of a mineral sample.
Nostrana [21]
Yea what they said up top!
7 0
3 years ago
Which statement best explains the effect of the sestina structure in Elizabeth Bishop's "Sestina"?
IceJOKER [234]

Answer:

The sestira structure makes the poem feel like a playful puzzle, but aciels nothing to the meaning of the poem

The repetition of the last word in each line creates a reflective rhythm and tone in the poem while also making significant words

easily recognizable

Explanation:

That was a really good one, I think you may want to go with that answer.

8 0
3 years ago
"How many formula units are there in sample of copper(II) sulfate that has
babymother [125]

Answer: 1.23\times 10^{23} formula units

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{32.5g}{160g/mol}=0.203moles

1 mole of CuSO_4 contains 6.023\times 10^{23} of formula units

Thus 0.203 mole of CuSO_4 contains =\frac{6.023\times 10^{23}}{1}\times 0.203=1.23\times 10^{23} of formula units

8 0
4 years ago
Other questions:
  • What is the concentration created when 380.0g of Pb(NO3)2 is added to 330.0 mL of solution?
    7·1 answer
  • What mass of sucrose needs to be dissolved into 540. G of water in order to prepare a 15% by mass solution? ______g sucrose
    15·1 answer
  • To what class of minerals do gold, silver, and copper belong? A. carbonates B. native elements C. halides D. sulfates and sulfid
    6·2 answers
  • How many unpaired electrons are present in each of the following?
    9·1 answer
  • Look at the image of the moon which moon phase does it show
    14·2 answers
  • Elemental phosphorus burns in oxygen with an intensely hot flame, producing a brilliant light and clouds of the oxide product. T
    15·1 answer
  • What is an element in group 17 of the periodic table called?
    9·1 answer
  • A mixture containing 20 mole % butane, 35 mole % pentane and rest
    15·2 answers
  • Hi!! can somebody help me with this question?
    12·1 answer
  • In chemistry class, you are given a density column with 3 liquids (shown in the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!