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
yuradex [85]
3 years ago
6

Which of the following is not true of exothermic reactions?

Biology
1 answer:
andriy [413]3 years ago
5 0
<h2>Answer:</h2>

Option B is correct.

B. In an exothermic reaction, excess energy is released as heat.

<h2>Explanation:</h2>

An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic" means heat.



You might be interested in
A sample of rock is found to contain 200 grams of a parent isotope.how many grams of the parent isotope will remain after one ha
emmasim [6.3K]

Answer: 100 grams of the parent isotope will remain after one half life.

Explanation:

Mass of the isotope present at initial stage = N_o=200 g

The mass of the parent isotope left after the time ,t=N

Time taken by the samle ,t = t_{\frac{1}{2}}

The half life of the sample :t_{\frac{1}{2}}

N=N_o\times e^{-\lambda t}

\lambda =\frac{0.693}{t_{\frac{1}{2}}}

\ln[N]=ln[N^o]-\frac{0.693}{t_{\frac{1}{2}}}\times t_{\frac{1}{2}}

2=\frac{[N_o]}{[N]}

[N]=\frac{N_o}{2}=\frac{200 g}{2}=100 g

100 grams of the parent isotope will remain after one half life.

5 0
3 years ago
Read 2 more answers
In fruit flies, a specific gene mutation causes the wings to become malformed. These wings are called vestigial because they do
tamaranim1 [39]

You get VV, Vv, Vv, and vv

3 0
3 years ago
Show a cross between a short haired guinea pig (hh) and a longhaired guinea pig (Hh). Begin with a nice and neat punnet square!
My name is Ann [436]

Answer:

Here's the punnet square

Explanation:

the top is the longhaired guinea pig (Hh), the side is the short haired guinea pig (hh).

hope this helped.

6 0
3 years ago
When a cell divides by mitosis the new cells are genetically identical. What causes the cells to be genetically identical?
SpyIntel [72]

Answer:

Explanation:

Mitosis. Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.

4 0
3 years ago
Read 2 more answers
The expected number of chromosomes in human body cells is 46. Fruit flies have only 8 chromosomes, mulberry trees
Alex_Xolod [135]

Answer:

always 23 becoz of the evolution

8 0
3 years ago
Other questions:
  • Using the help of the semi concevative replication of DNA, what is the role of a single strand of DNA
    12·1 answer
  • Prokaryotes and eukaryotes differ in that
    7·1 answer
  • An open system is different than a closed system because
    7·1 answer
  • How does the use of fossil fuels relate to human population growth? *
    6·1 answer
  • 3. Which of the following is a characteristic that could be applied to both living and nonliving things? (1 point)
    11·1 answer
  • Which of the following is an example of a species changing over time?
    12·1 answer
  • What are two types of evidence showing evolution occured
    12·1 answer
  • In which of the following conditions are intracellular concentrations of ATP likely to increase?
    13·1 answer
  • Which of these is a process in which the atmosphere interacts with the hydrosphere?
    6·2 answers
  • NO LINKS AND NO GUESSES I WANT A COMPLETE ANSWER
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!