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
slega [8]
2 years ago
9

Four scientist collected data on the blood pressure of 30 people. Which scientist most likely had a problem with the experimenta

l design?
Chemistry
1 answer:
Drupady [299]2 years ago
7 0

Answer:

Scientist 3

Explanation:

You might be interested in
Take a look at this dandelion. The yellow flower on the right is _______ pollinated and the seeds on the left are transported by
bearhunter [10]

Answer:

gay bowsah

Explanation:

8 0
3 years ago
Read 2 more answers
. A sample of crude oil has a density of 0.87 g/mL. What volume (in liters) does a 3.6 kg sample of this oil occupy
gayaneshka [121]

Answer:

The volume is 4.13793 L

Explanation:

Density is a quantity that expresses the relationship between the mass and the volume of a body, so it is defined as the quotient between the mass and the volume of a body:

density=\frac{mass}{volume}

Density is a characteristic property of every body or substance.

The most commonly used units of density are \frac{kg}{m^{3} } or \frac{g}{cm^{3} } for solids, and \frac{kg}{L} or \frac{g}{mL} for liquids and gases.

In this case, you know:

  • density= 0.87 \frac{g}{mL}
  • mass= 3.6 kg= 3,600 g (being 1 kg=1,000 g)
  • volume= ?

Replacing:

0.87\frac{g}{mL} =\frac{3,600 g}{volume}

Solving:

volume =\frac{3,600 g}{0.87\frac{g}{mL}}

volume= 4,137.93 mL

Being 1,000 mL=1 L, then volume= 4,137.93 mL= 4.13793 L

<u><em>The volume is 4.13793 L</em></u>

5 0
3 years ago
What is needed to burn the candle (reactant)?
Alexus [3.1K]

Answer:

wax, candlewick, and oxygen

Explanation:

The burning of the candle is both a physical as well as a chemical change. The reactants are the substances or the raw materials that are required for a reaction to the process. In the process of burning a candle, the reactants are the fuel which includes wax and wick, and oxygen which is found in the air. The products found at the end of the reaction are carbon dioxide and water vapor.

8 0
3 years ago
In which of the following locations are bacteria often found?
djyliett [7]

Answer:  

in the air and soil  

in drinking water

on and inside the human body

Explanation: Hope that helps

7 0
3 years ago
Which metal will more easily lose an electron sodium or potassium?
sergey [27]
<span>The metal that would more easily lose an electron would be potassium. It is more reactive than sodium. Also, looking on the periodic table, </span><span>from top to bottom for groups 1 and 2, reactivity increases. So, it should be potassium. Hope this answers the question. Have a nice day.</span>
7 0
3 years ago
Other questions:
  • Equal volumes of two equimolar solutions of reactants a and b are mixed, and the reaction a+b→c occurs. at the end of 1h, a is 9
    12·1 answer
  • Some people argue that a policy of putting out wildfires is having a negative long-term effect on the number and strength of wil
    7·1 answer
  • A substance that increases the concentration of hydroxide ions in aqueous solution.
    15·1 answer
  • How many grams of the molecule (C2H4O2) would be required to make 1 L of a 0.5 M solution of the molecule? (Carbon = 12, Oxygen
    7·1 answer
  • What best explains the relationship between structure and function of the cell membrane?
    12·2 answers
  • Why does a solid change to liquid when heat is added?
    5·1 answer
  • What is the anion of zinc sulfide
    14·1 answer
  • Please help I’ll mark you as brainliest if correct!
    11·1 answer
  • How many energy Do Squrrel's have
    12·2 answers
  • CERER science Q= how is kinetic energy related to temperature?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!