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
guajiro [1.7K]
3 years ago
7

1. What controls the cell? 2. Calls can be many ____ and _____

Chemistry
1 answer:
lilavasa [31]3 years ago
4 0
Hey mate!
You stuck?

1.) The cell structure which controls the activities of the cell is the nucleus.

2.)  Cells can be many ____ and _____ :  Shapes; Sizes


Hope this helps! :)
You might be interested in
All information on a line graph is as precise as the information in the data table. TrueFalse
Alexus [3.1K]
The answer to is all the information on a line graph is as precise as the information in the data table would be FALSE
4 0
3 years ago
Which term describes rocks that absorb water?
KIM [24]

Answer:

C. porous

hope it helps!!!

please mark as the brainliest if it is correct!

8 0
2 years ago
There are 6 oxygen atoms in a half dozen water (h2o) molecules. how many hydrogen atoms are in the same half dozen molecules?
dlinn [17]
There are 12 hydrogen atoms in 6(H2O)
5 0
3 years ago
which of these is a environmental effect of burning fossil fuels? A- temperature increase B-soil erosion C-habitat succesion D-F
hoa [83]

Answer:

A

Explanation:

temperature increase because burning causes heat therefore the planet heats up from all the fossil fuels burned aka "global warming"

3 0
3 years ago
of an unknown protein are dissolved in enough solvent to make 5.00mL of solution. The osmotic pressure of this solution is measu
krok68 [10]

The question is incomplete . The complete question is :

100 mg of an unknown protein are dissolved in enough solvent to make 5.00mL of solution. The osmotic pressure of this solution is measured to be 0.107atm at 25.0°C. Calculate the molar mass of the protein. Round your answer to 3 significant digits.

Answer:  The molar mass of the protein is 4.57\times 10^3g/mol

Explanation:

\pi =CRT

\pi=i\times \frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}\times RT

where,

\pi = osmotic pressure of the solution = 0.107 atm

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (protein) = 100 mg = 0.1 g   (Conversion factor: 1 g = 1000 mg)

Volume of solution = 5.00 mL

R = Gas constant = 0.0821\text{ L.atm }mol^{-1}K^{-1}

T = temperature of the solution = 25^oC=[273+25]=298K

Putting values in above equation, we get:

0.107=1\times \frac{0.1\times 1000}{\text{Molar mass of insulin}\times 5.00}\times 0.0821\text{ Latm }mol^{-1}K^{-1}\times 298K\\\\\text{molar mass of protein}

\text{molar mass of protein}=4.57\times 10^3g/mol

Hence, the molar mass of the protein is 4.57\times 10^3g/mol

7 0
3 years ago
Other questions:
  • Explain the relationship between photosynthesis and cellular respiration.<br> 2 point
    6·1 answer
  • What term BEST describes this mineral's luster?<br><br> A. waxy<br> B. shiny<br> C. glassy
    15·1 answer
  • The substances that undergo change in a chemical reaction are called?
    9·1 answer
  • What is the energy of a single photon of blue light with a wavelength of 488 nm (488 × 10-9 m)?
    9·2 answers
  • he solubility of oxygen gas in water at 25 °C and 1.0 atm pressure of oxygen is 0.041 g/L. The solubility of oxygen in water at
    14·1 answer
  • Can anyone answer this
    5·1 answer
  • Using the equation below, calculate how many grams of water (H2O) you have if you start with 12 grams of
    7·1 answer
  • When energy changes forms there is always some thermal energy that is produced that cannot be used. what type of energy is it?
    6·1 answer
  • 4. What causes local winds to form?
    9·2 answers
  • How many electrons are lost or gained in forming each ion? a. Ba2+ b. As3- c. Cu2+
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!