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
sammy [17]
3 years ago
7

order these units from smallest to largest:cm,um,km,mm,m,nm,dm,pm. then give each a measurement in terms of meters.

Chemistry
1 answer:
nevsk [136]3 years ago
4 0
<span>km kilometer 1000 meters
 m meter 1 meter
 dm decimeter 1/10 meter
 cm centimeter 1/100 meter
 mm millimeter 1/1000 meter
um micrometer 1/1000000 (one millionth) meter
 nm nanometer 1/1000000000 (one billionth) meter
 pm picometer 1/1000000000000 (one trillionth) meter</span>
You might be interested in
Which ecosystem is the least stable?
Softa [21]

Answer:

tundra bc it has barley any food source and has vary little inhabitants

Explanation:

6 0
3 years ago
The exoskeleton of a housefly is made up of
OverLord2011 [107]

Answer:

Chitin

Explanation:

A fly's main body is made of a thorax and an abdomen. These parts are covered by a hard exoskeleton made of a bony substance called chitin.

5 0
3 years ago
Read 2 more answers
At 85°C, the vapor pressure of A is 566 torr and that of B is 250 torr. Calculate the composition of a mixture of A and B that b
Phantasy [73]

Answer:

Composition of the mixture:

x_{A} =0.652=65.2 %

x_{B} =0.348=34.8 %

Composition of the vapor mixture:

y_{A} =0.809=80.9%

y_{B} =0.191=19.1%

Explanation:

If the ideal solution model is assumed, and the vapor phase is modeled as an ideal gas, the vapor pressure of a binary mixture with x_{A} and x_{B} molar fractions can be calculated as:

P_{vap}=x_{A}P_{A}+x_{B}P_{B}

Where P_{A} and P_{B} are the vapor pressures of the pure compounds. A substance boils when its vapor pressure is equal to the pressure under it is; so it boils when P_{vap}=P. When the pressure is 0.60 atm, the vapor pressure has to be the same if the mixture is boiling, so:

0.60*760=P_{vap}=x_{A}P_{A}+x_{B}P_{B}\\456=x_{A}P_{A}+(1-x_{A})P_{B}\\456=x_{A}*(P_{A}-P_{B})+P_{B}\\\frac{456-P_{B}}{P_{A}-P_{B}}=x_{A}\\\\\frac{456-250}{566-250}=x_{A}=0.652

With the same assumptions, the vapor mixture may obey to the equation:

x_{A}P_{A}=y_{A}P, where P is the total pressure and y is the fraction in the vapor phase, so:

y_{A} =\frac{x_{A}P_{A}}{P}=\frac{0.652*566}{456} =0.809=80.9 %

The fractions of B can be calculated according to the fact that the sum of the molar fractions is equal to 1.

7 0
3 years ago
Si agrega un ácido a una base, ¿qué pasará?
egoroff_w [7]

Answer:

When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt. The H(+) cation of the acid combines with the OH(-) anion of the base to form water. The compound formed by the cation of the base and the anion of the acid is called a salt.

Explanation:

3 0
3 years ago
Read 2 more answers
A calorimeter made from a can is used to measure the calories in a peanut. During the experiment, the
kari74 [83]

Answer:

The heat generated per gram of sample in calories is 0.87 g

Explanation:

Given that,

A calorimeter made from a can is used to measure the calories in a peanut.

During the experiment, the  measured calories were 35% of the true/accepted value given by references

Suppose, the mass of peanut is 0.4 g and find the

We need to calculate the heat generated per gram of sample in calories

Using formula of heat generated

q=\dfrac{q_{penut\ calorimeter}}{m_{peanut}}

Put the value into the formula

q=\dfrac{0.35}{0.4}

q=0.87\ g

Hence, The heat generated per gram of sample in calories is 0.87 g

3 0
3 years ago
Other questions:
  • Metal dissolved into another metal is called
    5·2 answers
  • Rfggxchhgfdxvnjgdzvbhdazcbhds
    15·1 answer
  • What is the value for the reaction: N2(g) + 2 O2(g) --&gt; N2O4(g) in terms of K values from the reactions:
    12·1 answer
  • The standard cell potential (e°) of a voltaic cell constructed using the cell reaction below is 0.76 v: zn (s) + 2h+ (aq) → zn2+
    6·1 answer
  • Give reason:
    8·1 answer
  • If C and Cl combined to make a compound, would it be covalent or ionic?
    15·1 answer
  • What is the name of the process manufacturers use to make unsaturated fatty acids more solid at room temperature and prevent oxi
    8·1 answer
  • “What is the group number for the elements that have a stable number of electrons in their outer energy level?”
    10·1 answer
  • What is the pH of a solution that has a [H+] = 0.010 mol/L?
    6·1 answer
  • WILL GIVE BRAINIEST ANSWER A chemical equation has different numbers of atoms on the left and right sides.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!