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
guapka [62]
3 years ago
13

[40 Points]

Chemistry
1 answer:
pashok25 [27]3 years ago
8 0

the one that is wrong is a. increase the molecular weight of the gas , the molecular weight never changes when a solid turns to a liquid or when a liquid turns to a gas .

You might be interested in
4. What is percent error calculation used to determine?
madam [21]

Answer:

Explanation:

You could use it for many things but one thing people use it for is the percent of failure when bonding bonds such as ionic bonds in chemistry.

3 0
3 years ago
What is the density of an object with a mass of 140 g and a volume<br> of 6 ml
Strike441 [17]

Answer:

<h2>23.33 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{140}{6} =  \frac{70}{3}   \\  = 23.3333...

We have the final answer as

<h3>23.33 g/mL</h3>

Hope this helps you

5 0
3 years ago
Which of the following compounds contains the Lead (II) ion?<br> PbO<br> PbCl4<br> Pb2O<br> Pb2S
KATRIN_1 [288]
<span>PbO Let's look at each of the 4 compounds and see what's needed. PbO. * Oxygen has a valance shell that's missing 2 electrons and wants to get those 2 elections. Lead donates them, so you have a Lead (II) ions. This is a correct choice. PbCl4 * Chlorine wants to grab 1 electron to fill it's valance shell and Lead donates that election. However, there's 4 chlorine atoms and every one of them wants and electron, and lead is donating all 4 of the desired electrons making the Lead (IV) ion. So this is a bad choice. Pb2O * Oxygen still wants 2 electrons and gets them from the lead. But there's 2 lead atoms and each of them donates 1 election making for 2 Lead(I) ions. So this too is a bad choice. Pb2S * Sulfur is in the same column of the periodic table as oxygen and if this compound were to exist would have similar properties as Pb2O and would have Lead(I) ions. So this is a bad choice.</span>
6 0
3 years ago
Read 2 more answers
Is this equation balanced?<br><br>nh4oh+hc2h3o2=nh4c2h3o2+h2o​
Usimov [2.4K]

Answer:

It IS balanced

Explanation:

3 0
3 years ago
Read 2 more answers
All the nonmetals have some similar physical properties.<br><br> True<br> False
miss Akunina [59]
This is false, all non metals have different physical properties.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Put the following into correct SciNot: 312.5 x 10^20.<br><br>1 point<br><br>Your answer<br><br><br>​
    9·1 answer
  • A pool holds 20,000 liters of water. How many milliliters is this?
    11·2 answers
  • Which is an example of a nonaqueous solution?
    10·2 answers
  • An object resting on a table weighs 100 N. With what force is the object pushing on the table? With what force is the table push
    12·1 answer
  • What does Raoult's law state?
    5·2 answers
  • 4. Both the alkene C4H8 and the alkyne C4H6 have rigid bond structures. However, C4H8 can form three isomers, whereas C4H6 can f
    14·1 answer
  • For the reaction PCl5(g) 4 PCl3(g) 1 Cl2(g) Kp 5 23.6 at 500 K a. Calculate the equilibrium partial pressures of the reactants a
    7·1 answer
  • Is this true or false a line graph shows the relationship between three variables
    14·2 answers
  • Express the following numbers in Standard Form:
    13·1 answer
  • How does the ice cube feel in your hand at first? Explain in terms of heat transfer.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!