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
valentina_108 [34]
2 years ago
8

Matching: Which is the control center of the cell that contains DNA?

Chemistry
1 answer:
MissTica2 years ago
3 0
The answer is B. Nucleus
You might be interested in
Is mercury chloride ionic or covalent
patriot [66]

Answer:

ionic

Explanation:

ionic compounds contain a metal and a nonmetal. Mercury is a metal and Chlorine is a non metal

7 0
2 years ago
The extraction of zinc from zinc blend and explain how the zinc oxide be reduced using Carbon monoxide Electrolysis
Nitella [24]

Answer:

Zinc blend is Zinc sulphide, ZnS.

ZnS is roasted in air producing ZnO and Sulphur dioxide.

ZnO is reduced to Zn by CO.

Further purification is done by electrolysis.

4 0
3 years ago
What happens to carbon in plants when the plants die.
Korvikt [17]

Answer:

Released into the atmosphere

Explanation:

The carbon that the plant had been storing when it was alive, would be released upon death into the soil

4 0
2 years ago
substance x reacts with sodium carbonate to form a gas . The gas turns lime water cloudy. What is substance K and which process
Alexxx [7]

Answer:

Substance K is hydrochloric acid and the process is neutralisation

Step-by-step explanation:

When you react hydrochloric acid and sodium carbonate, you produce sodium chloride, carbon dioxide and water

3 0
2 years ago
Read 2 more answers
A volume of 75.0 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. I
Evgesh-ka [11]

Answer: 17.78g

Explanation:

Assume there is no heat exchange with the environment, then the amount of heat taken by the steel rod, Q(s), is equal to the amount of heat lost by the water, Q(w), but with opposite sign.

Q(s) = -Q(w)

Remember, Q = mc(ΔΦ)

Where Q = amount of heat

m = mass of steel

c = specific heat capacity of steel

ΔΦ = Initial temperature T1 - Final temperature T2

Q = mc(T1-T2)

Recall, Q(s) = -Q(w). Then,

m(s)*c(s)*(T1s - T2s) = - m(w)*c(w)*(T1w - T2w)

Substituting each values

Note: m(w) = volume of water*density = 75mL*1g/mL = 75g

m(s)*0.452*(21.5-2) = -75*4.18*(21.5-22)

m(s)*8.814 = 156.75

m(s) = 156.75/8.814

m(s) = 17.78g

Therefore, the mass of steel is 17.78g

8 0
3 years ago
Other questions:
  • What two things are a included when describing force
    8·2 answers
  • Which unit of measure is used to indicate ecell?
    6·2 answers
  • Help quick!!!! 50 POINTS!!!<br> Which of the following is an engineering Solution?
    6·1 answer
  • The figure below represents ____
    11·2 answers
  • What do you notice about the density of the sinking objects?
    10·2 answers
  • Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·1 answer
  • When the following redox equation is balanced with smallest whole number coefficients, the coefficient for the iodide ion will b
    12·1 answer
  • How do chemicals affect the environment
    14·2 answers
  • Which situation is does NOT occur during a chemical reaction?
    10·1 answer
  • 2. What is forensic odontology ? Why is this area helpful for investigators?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!