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
spin [16.1K]
3 years ago
13

THIS IS FOR MY FINAL EXAM IN CHEM!!!!!! PLEASE PLEASE PLEASE DON'T GUESS

Chemistry
1 answer:
Artemon [7]3 years ago
7 0
A. soluble.
The are solubility rules that predict precipitation reaction.
You might be interested in
What is the IUPAC for the compound ZnO?
brilliants [131]
Zinc Oxide is the IUPAC name for ZnO

5 0
3 years ago
V=5, M=10 What is the density?
ch4aika [34]

Answer:

the answer to this question is  2 kilogram/cubic meter

Explanation:

4 0
3 years ago
Information-
tekilochka [14]

Answer:

So first thing to do in these types of problems is write out your chemical reaction and balance it:

Mg + O2 --> MgO

Then you need to start thinking about moles of Magnesium for moles of Magnesium Oxide. Based on the above equation 1 mole of Magnesium is needed to make one mole of Magnesium Oxide.

To get moles of magnesium you need to take the grams you started with (.418) and convert to moles by dividing by molecular weight of Mg (24.305), this gives you .0172 moles of Mg.

The theoretical yield would be the assumption that 100% of the magnesium will be converted into Magnesium Oxide, so you would get, based on the first equation, .0172 mol of MgO. Multiplying this by the molecular weight of MgO (24.305+16) gives us .693 g of MgO.

The percent yield is what you actually got in the experiment, and for this you subtract off the total mass from the crucible mass, or 27.374 - 26.687, which gives .66 g of MgO obtained.

Percent yield is acutal/theoretical, .66/.693, or 95.24%.

I'll let you do the same for the second trial, and average percent yield is just an average of the two trials percent yield.

Hope this helps.

6 0
3 years ago
⇔what process occurs in some cells
Serhud [2]
It could be a couple different thing, explain more.<span />
3 0
3 years ago
Kimchi is traditional Korean food made by fermenting cabbage or other vegetables in a mixture of spices and salt. Kimchi origina
Yuki888 [10]

Answer:

C. Water passes into the salt solution, dehydrating bacterial cells and making them harmless.

Explanation:

The salt solution is hypertonic to the bacterial cells and as such, water molecules will move from the bacterial cells into the salt solution, dehydrating the cells and rendering them harmless.

Option A is also true but it is irrelevant to the question asked. Option B and D are wrong.

The correct option is C.

3 0
3 years ago
Other questions:
  • 1. In which of these cases do we have enough information to say that the atom is electrically neutral?
    15·2 answers
  • What represents the hemisphere
    5·1 answer
  • Which of the following elements is the most reactive?<br> c, s,f, or as
    10·2 answers
  • What would be the formula for diphosphorus pentoxide ?
    9·2 answers
  • How many moles of oxygen react with 12 moles of aluminum
    12·1 answer
  • In part A of the experiment you will need to make a 4.80 x 10-4 M KSCN solution starting with a 2.00 x 10-3M KSCN solution. You
    7·1 answer
  • Agree or disagree? Explain (2 ideas, 2 examples)
    15·1 answer
  • What are the reactants in a neutralization reaction?
    6·1 answer
  • What are the IUPAC names of the following ?
    11·1 answer
  • Which models of the atom in task 1 are not supported by the results of the hydrogen gas experiment? For each of these models, ex
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!