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
olganol [36]
3 years ago
10

Why did we change our understanding of where life comes from?

Chemistry
1 answer:
Andru [333]3 years ago
8 0

Answer:

whathappensinthisstory

You might be interested in
When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid
Dmitrij [34]

Answer:

The liquid will boil.

Explanation:

Boiling will occur when the vapor pressure is equal to the atmospheric pressure. This is called the boiling point. Without any external pressure the liquid molecules will be able to spread out and change from a liquid to a gas.

7 0
3 years ago
A solution is prepared by dissolving 51 g of salt in 340 g of
garri49 [273]

Answer:

okķkkkkkkkkkkkkkkkkkkkkk.I don't know the answer. GIVE THANKS

5 0
3 years ago
18 grams<br> 4 kilograms<br> 8 kilograms
Rina8888 [55]

Answer:

1 18 grams

2 500g

4 960 grams

5 7 kilograms

5 0
3 years ago
33.23 grams of a thin sheet of iron is completely oxidized in 7 days. How would you express the rate of conversion of the silver
tresset_1 [31]

Answer:

A. 0.0440 moles/day

Explanation:

First, let's figure out how many moles 33.23 grams of silver is. We do this by dividing the number of grams by the molar mass of silver, which is 107.87 g/mol:

33.23 g Ag ÷ 107.87 g/mol = 0.3081 mol Ag

Now, let's divide this by 7 to get the rate per day:

0.3081 mol Ag ÷ 7 days = 0.0440 mol/day

Thus, the answer is A.

7 0
3 years ago
Which of the following have the most similar properties?
rjkz [21]

Answer:

             Option-B (Carbon and Silicon)

Explanation:

                  Among the given pairs only carbon and silicon have the most similar properties. This is because,

Sodium and Magnesium belong to different groups. Sodium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Magnesium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

                                           2 Na  +  Cl₂    →     NaCl

                                           Mg  +  Cl₂    →    MgCl₂

As shown in reactions when Sodium and Magnesium are treated with Cl₂ they give a products with different proportions.

Carbon and Silicon show almost same properties because both belong to Group IV hence both are capable of forming four bonds. Also, they share the same property of self linkage in making a long chains.

Argon and Chlorine also belong to two different groups. Argon is present in Group VIII (Noble Gases) and Chlorine is present in Group VII (Halogens). Hence, Argon is an inert specie which is non reactive while Chlorine gives different reaction easily.

Potassium and Calcium belong to different groups. Potassium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Calcium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

                                           2 K  +  Cl₂    →     KCl

                                           Ca  +  Cl₂    →    CaCl₂

As shown in reactions when Potassium and Calcium are treated with Cl₂ they give a products with different proportions.

6 0
3 years ago
Other questions:
  • The titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.205 m solution of dichromate to reach the equivalence p
    9·1 answer
  • As you move from top to bottom down a group on the periodic table size of an atom will
    12·2 answers
  • Tracie measured 87.47 mg of cholesterol in 0.03 mL of blood. What is the density of this mixture in g/mL?
    5·1 answer
  • Which characteristic determines the chemical properties of matter?
    15·1 answer
  • I just need an advantage of disadvantage of Geothermal energy. I just need an advantage of Biomass and disadvantages of Biomass
    8·1 answer
  • Write the overall, ionic and net ionic equations for the following reaction. Hydrobromic acid (HBr) and Strontium hydroxide (Sr(
    11·2 answers
  • How many moles are in 6.8 x 10^23 molecules of NaOH? (show work please)
    6·1 answer
  • Where is tenessine on the periodic table?
    9·1 answer
  • 5. If two gases are present in a contain the total pressure in the container is equal to ​
    11·1 answer
  • Adaptation: Question 1 Which best explains why a population of a certain species of moose , over five generations , developed fe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!