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
Liono4ka [1.6K]
3 years ago
9

Why do solids have a fixed shape?

Chemistry
2 answers:
KIM [24]3 years ago
5 0
D. The particles are tightly packed together
il63 [147K]3 years ago
3 0

Answer:

D

Explanation:

I took the test

You might be interested in
How many chlorine atoms are there in 12.2 g of ccl4? How many chlorine atoms are there in 12.2 of ? 4.77×1022 atoms?
mash [69]

Answer:- 1.91*10^2^3Cl atoms.

Solution:- We have been given the grams of carbon tetrachloride and asked to calculate the number of atoms of chlorine. It is a three step conversion problem. In the first we convert the grams of carbon tetrachloride to moles of it. In second step we convert moles of carbon tetrachloride to moles of chlorine and in the third step we convert the moles of chlorine to atoms of chlorine.

For grams to mole conversion we need the molar mass of the compound. Molar mass of carbon tetrachloride is 153.82 grams per mol. If we look at the formula of carbon tetrachloride then four chlorine are present in it. It means 1 mol of carbon tetrachloride has four moles of chlorine. The calculations are as follows:

12.2gCCl_4(\frac{1molCCl_4}{153.82gCCl_4})(\frac{4molCl}{1molCCl_4})(\frac{6.02*10^2^3Clatoms}{1molCl})

= 1.91*10^2^3Cl atoms

So, there are 1.91*10^2^3Cl atoms in 12.2 grams of CCl_4 .

6 0
3 years ago
Read 2 more answers
Which of the following is TRUE about enzymes?
Vinil7 [7]

Answer:

All options are correct.

Explanation:

All options are correct.

Enzymes being faster, than chemical catalysts and their reaction rate is almost 10 times faster.They are highly specific producing large amount of good residues and can work at mild conditions, physiological pH and temperature.

They can be regulated by other molecules that either increase or reduce their activity.

Molecules that increase the activity of an enzyme are called activators, while molecules that decrease the activity of an enzyme are called inhibitors.

6 0
3 years ago
When a hurricane approaches land, people living directly on the
Tatiana [17]

Answer:

True

Explanation:

When a hurricane is dangerous enough that authorities say to evacuate, you should for your own safety.

3 0
2 years ago
What is the manipulated variable in maria experiment what is the responding variable
docker41 [41]
What are the variables you have? I can't answer if I don't know? Haha. :)
7 0
2 years ago
PLZ HELP WITH THESE QUICK// WILL AWARD BRANLIEST
Tom [10]

Answer 1

The sample will dissolve in more than 1 minute.

Explanation :-

Generally Solubility and rate of solubility of substances increase with the increase in temperature. So lower the temperature less fast will it dissolve in the same amount of water.

Since at 50 C it takes 1 minute to dissolve, at 20 C which is lower temperature it will take more time to dissolve.

Answer 2

Transition metals

Explanation:-

Hardness depends on the extent of metallic bonding for metals. More the number of electrons more the metallic bonding.

Alkali metals with just 1 valence electron have weak metallic bonding. Alkaline earth metals have just 2 valence electrons. Transition elements has more electrons in penultimate shell and valence shell than lanthanides. Transition metals with most metallic bonding are the hardest

5 0
3 years ago
Other questions:
  • Where is lithium used in the body?
    14·2 answers
  • These two beakers represent solutions of HCl and NaOH. Describe a third beaker showing the ions that remain after the reaction h
    15·1 answer
  • Will a horse galloping in a field produce and average velocity of zero
    11·1 answer
  • Which type of bonding is most important in ch3ch2ch2ch2ch2ch3?
    11·1 answer
  • How much of a sample remains after three half-lives have occurred? 1/16 of the original sample 1/9 of the original sample 1/8 of
    11·2 answers
  • State the purpose of respiration.​
    6·2 answers
  • What is the atomic number of an element that has seven protons and eight neutrons and seven electrons?
    9·2 answers
  • Balance the equation <br> C2H6O+O2 ——&gt; CO2 + H2O
    9·1 answer
  • How would doubling the height of an object change the object's potential
    12·1 answer
  • A student was asked to find the density of an unknown object. The student found that the mass of the object was 35.49 g. The stu
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!