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
NeX [460]
3 years ago
5

Which phrases describe the open-ocean zone? Check all that apply.

Chemistry
2 answers:
ASHA 777 [7]3 years ago
3 0

Answer:

- few nutrients

- low temperatures

-very little sunlight

Explanation:

miss Akunina [59]3 years ago
3 0

Answer:

I think it's: located near coasts.

You might be interested in
What are the parts of a chromosome
juin [17]

Answer:

the centromere, the arm and the telomere

Explanation:

3 0
3 years ago
a patient is to receive 25 mg of methimazole, a drug used to treat hyperthyroid conditions. the drug is dissolved in solution co
Rainbow [258]
The drug has a concentration of 6 mg per 1 ml. Therefore, to know that number of ml containing 25 grams, we will simply do cross multiplication as follows:
amount of drug = (25 x 1) / 6 = 4.1667 ml

Therefore, for the patient to receive 25 mg of methimazole, he/she should take 4.1667 ml of the drug solution.
8 0
3 years ago
What type of energy is present in wound-up rubber band in a toy airplane?
andriy [413]
It is elastic potential energy
3 0
3 years ago
The enthalpy of solution (∆H) of KOH is -57.6 kJ/mol. If 3.66 g KOH is dissolved in enough water to make a 150.0 mL solution, wh
Wewaii [24]

When 3.66 g of KOH (∆Hsol = -57.6 kJ/mol) is dissolved in 150.0 mL of solution, it causes a temperature change of 5.87 °C.

The enthalpy of solution of KOH is -57.6 kJ/mol. We can calculate the heat released by the solution (Qr) of 3.66 g of KOH considering that the molar mass of KOH is 56.11 g/mol.

3.66g \times \frac{1mol}{56.11g} \times \frac{(-57.6kJ)}{mol} = -3.76 kJ

According to the law of conservation of energy, the sum of the heat released by the solution of KOH (Qr) and the heat absorbed by the solution (Qa) is zero.

Qr+Qa = 0\\\\Qa = -Qr = 3.76 kJ

150.0 mL of solution with a density of 1.02 g/mL were prepared. The mass (m) of the solution is:

150.0 mL \times \frac{1.02g}{mL}  = 153 g

Given the specific heat capacity of the solution (c) is 4.184 J/g・°C, we can calculate the change in the temperature (ΔT) of the solution using the following expression.

Qa = c \times m \times \Delta T\\\\\Delta T = \frac{Qa}{c \times m} = \frac{3.76 \times 10^{3}J  }{\frac{4.184J}{g.\° C }  \times 153g} = 5.87 \° C

When 3.66 g of KOH (∆Hsol = -57.6 kJ/mol) is dissolved in 150.0 mL of solution, it causes a temperature change of 5.87 °C.

Learn more: brainly.com/question/4400908

7 0
2 years ago
How are pure crystalline substances characterized?
hoa [83]
A pure crystalline substance is a substance with an almost perfect regular and periodic pattern in a solid state. This makes this type of substance a hard one compared to an amorphous substance which is soft because of the irregular pattern within.
4 0
3 years ago
Other questions:
  • Movement occurs when tue skeletal sysworks with the____system
    15·2 answers
  • How many grams of silver chloride are produced from 5.0 g of silver nitrate reacting with an excess of barium chloride?
    11·1 answer
  • How many moles are there in 200 grams of CI?
    7·2 answers
  • Eukaryotes contain specialized structures that perform important cellular functions. These structures are called _______________
    11·1 answer
  • When a river flows over a cliff its
    8·2 answers
  • What is the molar mass of the anhydrous
    15·2 answers
  • What makes up an isotope’s mass number?
    13·1 answer
  • Which formula represents a hydrocarbon with a double covalent bond?
    10·1 answer
  • Converts chemical energy into mechanical energy
    8·1 answer
  • Formulación del dióxido de cobalto
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!