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
Westkost [7]
3 years ago
5

WILL GIVE BRAINLIEST AND 10 POINTS!

Chemistry
2 answers:
melamori03 [73]3 years ago
5 0

Answer:

student A

Explanation:

Student A because it requires a hypothesis

GarryVolchara [31]3 years ago
4 0

Student B because it requires a hypothesis

You might be interested in
A rectangular block floats in pure water with 0.5 inch above the surface and 1.5 inches below the surface. When placed in an aqu
d1i1m1o1n [39]

Answer:

- the specific gravity of the block is 0.75

- the specific gravity of the solution is 1.5

Explanation:

Given the data in the question;

first we find the specific gravity of a block SGB

SGB = ( block vol below / total block vol ) × the specific gravity of water

we substitute

SG_{BLOCK = ( 1.5 / (1.5 + 0.5 ) ) × 1

SG_{BLOCK = ( 1.5 / (1.5 + 0.5 ) ) × 1

SG_{BLOCK = (1.5 / 2) × 1

SG_{BLOCK = 0.75

Therefore, the specific gravity of the block is 0.75

specific gravity of solution SG_{SOLUTION

SG_{SOLUTION = (total block vol / block below ) × SG_{BLOCK

we substitute

SG_{SOLUTION = ( 2 / 1 ) × 0.75

SG_{SOLUTION = 2  × 0.75

SG_{SOLUTION = 1.5

Therefore, the specific gravity of the solution is 1.5

5 0
3 years ago
What forms when a star creates a hot core surrounded by gas and dust?
lyudmila [28]

I think the answer is a nebula

6 0
4 years ago
What elements are in the star sirius?
ziro4ka [17]

Answer:

Sirius B is primarily made out of a carbon-oxygen mixture that was generated by helium fusion in the progenitor star. The outer atmosphere is now almost pure hydrogen, the element with the lowest mass.

Explanation:

3 0
3 years ago
Does the antifreeze you put in a car radiator have a lower or higher freezing point than water
saveliy_v [14]
Hello!
Antifreeze says it in the name. This means that it helps prevent freezing. The liquid that would freeze if you wouldnt use the antifreeze is water. This means that the antifreeze has to have a higher freezing point then water, because otherwise it would only freeze faster!

Hope this helped you!
7 0
3 years ago
Question 8 (9 points) <br><br>Match the lab equipment with its purpose
Deffense [45]

Answer:

\sf \boxed{4} \mapsto Pipet

\sf\boxed{7}\mapsto Test \:tube \: rack

\sf\boxed{3}\mapsto Test\: table

\sf\boxed{5}\mapsto Scoopula

\sf\boxed{1}\mapsto Graduated\: cylinder

\sf\boxed{9}\mapsto Bunsen \:burner

\sf\boxed{2}\mapsto Beaker

\sf \boxed{8}\mapsto Spot\: plate

\sf\boxed{6}\mapsto Goggles

Explanation:

Pipet is used to dispense a very small amount of liquid.

Test tube rack is used to hold multiple test tubes at the same time.

Test Table is used to view chemical reactions or hold or heat small amounts of substance.

Scoopula is used to dispense chemicals from a larger container.

Graduated cylinder is used to measure volume very precisely.

Bunsen burner is used to heat objects.

Beaker is used to transport heat or store substance.

Spot plate is used to observe the color changes of small quantities of a reacting mixture.

Goggles are used to protect the eyes from flying objects or chemical splashes.

_____________________________________________________

7 0
3 years ago
Other questions:
  • Identify the number of significant figures in each measurement. Type the correct answer in each box. Use numerals instead of wor
    15·2 answers
  • I need help with this problem
    13·1 answer
  • I need to know this because I was absent and he was going and could not help me with it so I am on my own
    11·2 answers
  • At a football game, the crowd begins a stadium wave, rising from their seats and falling back to their seats, causing the wave t
    10·1 answer
  • If an atom has twelve electrons, how many electrons are in the n=1 energy level? How many electrons are in the n=2 energy level?
    5·1 answer
  • The number 6.02 x 1023 is called...<br> i need help what is the name for 6.02 x10^23
    15·1 answer
  • What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?
    15·1 answer
  • The decrease in the water table due to overuse of water.
    12·1 answer
  • When an object heats up, it __. When an object cools down, it __.
    9·2 answers
  • Which of these compounds would most likely be found in a deposit of natural gas?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!