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
Len [333]
3 years ago
11

Could someone please help me

Chemistry
1 answer:
Alex777 [14]3 years ago
3 0

a. Emma creates a pressure difference allowing the fluid to flow.

You might be interested in
A compound's molecular formula must always be different than the compound's empirical formula. TRUE FALSE
Juli2301 [7.4K]

Answer: False

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Example: CH_4 has similar molecular formula and empirical formula as the elements are already present in simplest of the ratios.

C_2H_2 has molecular formula of C_2H_2 but CH as the empirical formula.

5 0
3 years ago
The density of benzene at 15 ∘c is 0.8787 g/ml. calculate the mass of 0.1000 l of benzene at this temperature.
Andrews [41]
V=0,1 l=100 ml
m=p*V=0,8787*100=87,87g
8 0
3 years ago
Read 2 more answers
Specific gravity is a number representing the ratio of a mineral's weight to the weight of an equal volume of water. TRUE FALSE
777dan777 [17]

Answer: True

Explanation: Specific Gravity of a body, also called its Relative Density, is the ratio of the density of that body to the density of a reference material (usually water).

With the Mathematics done right, it is evident that the specific gravity of a body would be equal to the ratio of mass/weight of the body to the mass/weight of an equal volume of water.

S.G = (Density of body)/(Density of water)

Density of Body = (mass/weight of body)/(volume of body)

Density of water = (mass/weight of water)/(volume of water)

If volume of Body = Volume of water, then,

S.G = (Mass/Weight of body)/(Mass/Weight of equal volume of water)

Proved!!

3 0
3 years ago
Choose the correct statement regarding the relative size of atoms:
Sonbull [250]

Answer:

The atoms on left side are larger than the atoms on the right side of the periodic table because those on the right have more proton's.

Explanation:

As we travel along a period in a periodic table then the atomic radii decreases

This is because as we travel along a period we have that the atomic number of the atoms increases which means the the number of proton's increased

But the electron's add to the same outer shell throughout the period , which means the effective nuclear charge increases which pulls the outer electrons toward's the nucleus and the size decreases.

Therefore the atoms on left side are larger than the atoms on the right side of the periodic table because those on the right have more proton's.

6 0
3 years ago
If you were asked to convert 4.2 × 1022 atoms of aluminum to moles, which of the following should you use for the conversion?
gregori [183]
You should use Avogadro’s number for the conversion, because Avogadro’s Law states that there are 6.02 x 10^23 atoms per 1 mol of that substance.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the molarity of a solution made by dissolving 21.2 g of sodium hydroxide (NaOH) in enough water to make 7.92 L of soluti
    12·2 answers
  • LAST TRY I CANT GET THIS WRONGGG PLZ
    6·1 answer
  • Which point in the digestion of food do nutrients become available to cells
    13·1 answer
  • Which of the following is necessary to increase the rate of a reaction?
    15·1 answer
  • Physics 130 Metal detectors, like the ones used at airports, are activated by a. electric fields. b. magnetic fields. c. electro
    5·1 answer
  • What happens during the cell cycle
    15·1 answer
  • The results of a classroom group activity performed to test the acidic or basic nature of two substances are shown in the table.
    7·1 answer
  • 5. Azulene is a beautiful blue hydrocarbon. If 0.106 g of the compound is burned in oxygen, 0.364 g of CO2 and 0.0596 g of H2O a
    11·1 answer
  • Object 1: A skateboard with unbalanced forces Object 2: A bicycle with balanced forces Which statement is true about the objects
    7·1 answer
  • The picture below shows an open field with wildflowers.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!