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
Pavel [41]
2 years ago
12

(PLZ ANSWER SOON)

Chemistry
1 answer:
almond37 [142]2 years ago
7 0

Answer:

10.5 k.J.

Explanation:

You might be interested in
How do you know anything?
r-ruslan [8.4K]
By studying and learning by using your brain to accomplish new goals. :)
(if that makes sense)
Hope this helps :3
6 0
2 years ago
Balance the equation Mg(s) + O2(g) -> MgO(s)​
Bess [88]

Answer:

2Mg(s) + O2 (g) -> 2MgO(g)

5 0
3 years ago
Convert 1297 cm to m.
Svet_ta [14]

Answer:

Not sure,12.97(if u get it wrong let me know)

Explanation:

100cm=1m

Then 1297cm=

1297 \100

= 12.97m

3 0
3 years ago
Read 2 more answers
PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Drupady [299]

Answer:

Reactivity

Explanation:

yes

8 0
3 years ago
Read 2 more answers
How many grams of NH4Cl (ammonium chloride) should dissolve in 50mL of water at 20 degrees Celsius?
Anna71 [15]

Answer:

about 19 or 20 g

Explanation:

To do this, is neccesary to watch a solubility curve of this compound. This is the only way that you can know how many grams are neccesary to dissolve this compound in 50 mL of water to a given temperature.

Now, if you watched the attached graph, you can see the solubility curve of many compounds in 100 g of water (or 100 mL of water). So, to know how many do you need in 50 mL, it's just the half.

So watching the curve, you can see that at 20 °C, we simply need between 35 g and 40 g. Let's just say we need 38 grams of NH4Cl to be dissolved in 100 mL of water.

So, in 50 mL, it's just the half. So, we only need 19 g or 20 g of NH4Cl at 20 °C, to dissolve this compound in water.

3 0
3 years ago
Other questions:
  • What will happen when substances go through chemical changes
    8·1 answer
  • Darwin observed how farmers and breeders produced many kinds of farm animals and plants. These plants and animals had traits tha
    8·2 answers
  • Classify the following atom as excited, ground state, or not possible.<br><br> 1s^2 2s^2 2p^6 3p^1
    10·1 answer
  • In the event no property damage or loss occurs during an insurance contract period, the premium payments were wasted only if the
    11·1 answer
  • 1.One gram-atom of Nitrogen is heavier than one gram-atom of Oxygen.
    8·1 answer
  • What is the molarity of 5.60 mol of sodium carbonate in 1500 ml of solution?
    9·1 answer
  • Common things in all metals
    11·1 answer
  • 19. When 0.5g of calcium trioxocarbonate (IV) was added to excess dilute
    6·1 answer
  • Define Acid and alkalis​
    8·2 answers
  • Options:
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!