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
Tomtit [17]
3 years ago
13

A scientist has tested an experimental drug on laboratory mice and created a model. Which of the following is the next logical s

tep in testing the model?
Chemistry
1 answer:
Ivahew [28]3 years ago
7 0
I think C or D but Id do D if I were you
You might be interested in
A dry soil sample has a volume of 500 mL. After 400 mL of water are added to the soil, the soil becomes saturated with 150 mL of
Lerok [7]
The Answer is 50. hope this helps
4 0
2 years ago
What mass of carbon dioxide gas occupies a volume of 81.3L at 204 kPa and a temperature of 95.0°C?
alexandr1967 [171]

Answer:

236.9g

Explanation:

Given parameters:

Volume of gas  = 81.3L

Pressure of gas = 204kPa

temperature of gas = 95°C

Unknown:

Mass of carbondioxide gas = ?

Solution:

To solve this problem, the ideal gas law will be well suited. The ideal gas law is a fusion of Boyle's law, Charles's law and Avogadro's law.

Mathematically, it is expressed as;

                    PV = nRT

the unknown here is n which is the number of moles;

P is the pressure, V is the volume, R is the gas constant and T is the temperature.

convert pressure into atm

               101.325KPa  = 1atm

             204 kPa = \frac{204}{101.325}   = 2atm

Convert temperature to Kelvin;   95 + 273  = 368K

       2 x 81.3 = n x 0.082 x 368

             n = \frac{2 x 81.3}{0.082 x 368}   = 5.38moles

Since the unknown is mass;

 Mass  = number of moles x molar mass

      Molar mass of carbon dioxide  = 12 + 2(16)  = 44g/mol

 Mass  = 5.38 x 44  = 236.9g

5 0
3 years ago
What do electric forces do​
Oksana_A [137]

Answer:

An electric force is exerted between any two charged objects. Objects with the same charge, both positive and both negative, will repel each other, and objects with opposite charges, one positive and one negative, will attract each other.

Explanation:

3 0
3 years ago
Why do single cell organisms divide?
mixer [17]
Single-celled organisms<span> which use asexual reproduction can </span>do<span> so very rapidly simply by </span>dividing<span> into two equal halves. This is called binary fission. In yeasts the </span>cell<span> does not </span>divide<span> equally in two halves; instead, there is a large mother </span>cell<span> and a smaller daughter </span>cell<span>. This is called budding.</span>
7 0
3 years ago
If half of the moon is always illuminated why does its appearance from earth change?
irina [24]

Answer:

The different angles the moon has from sunlight to the earth

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • A man walked back and forth in a straight line. if he travels from point A to point B, then turns around and stops at point C, w
    10·2 answers
  • How do I find the electronegativity of an element
    10·1 answer
  • URGENT HELP PLEASE what is an isotope? And how do you calculate isotopes
    13·1 answer
  • A straight piece of wire is collided to form a spring physical or chemical change
    8·2 answers
  • What is the chemical formula of the ionic compound that forms from potassium and bromine?
    14·1 answer
  • Calculate the mass of water having same number of hydrogen atoms as are present in the 32gram of methane. Please help me soon...
    8·1 answer
  • Mechanical waves are classified according to
    9·1 answer
  • The name of the ion P3- is phosphoride ion.<br><br> True<br> False
    5·1 answer
  • 1. Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appear
    12·1 answer
  • In this equation, what should be the coefficients of the reactants and products?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!