Pls tell me which answer type it

What is the mole ratio that can convert from moles of A to moles of B?

kaheart [24]

There is no direct way to convert from the mass of one substance to the mass of another. To convert from one mass (substance A) to another mass (substance B), you must convert the mass of A first to moles, then use the mole-to-mole conversion factor (B/A), then convert the mole amount of B back to grams of B.

8 0

3 years ago

Hi! It would be awesome if you could answer this soon. 20 points!

NikAS [45]

Answer:

2HgO → 2Hg + O₂

The reaction is a decomposition reaction because from one reactant two products were obtained

Explanation:

The problem here involves balancing the chemical reaction given and also classifying the reaction.

The unbalanced expression is given as:

HgO → Hg + O₂

Assign the alphabets a,b and c as coefficients that will balance the equation

aHgO → bHg + cO₂

Conserving Hg: a = b

O: a = 2c

So, let c = 1, a = 2 b = 2

Therefore;

2HgO → 2Hg + O₂

The reaction is a decomposition reaction because from one reactant two products were obtained

3 0

3 years ago

If matter is neither created nor destroyed, why can’t we just go directly from grams of reactant to grams of product?

algol [13]

Not all matter in the reactant goes to the product. Some matter is byproducts.

4 0

3 years ago

Which of the following elements is most likely to form a +1 charge? Cl Mg Na Li

pogonyaev

Answer:

Na

Explanation:

because sodium has 1 electrons so it loses it to be stable and so have positive charge of 1

7 0

3 years ago

Read 2 more answers

Please help I have a test

natka813 [3]

Answer:

Pink- Lithium Salts or Lithium Nitrate (NO3), Yellow- Sodium Salts or Sodium Nitrate (NO3)

Explanation:

These chemicals (Sr, Ba, Cu, Ca, Na, Mg) are used because they create the colors for the firework. As you can see, the chemicals Nitrogen (N) and Oxygen (O) are combined with the color chemicals to make them combust.

The chart below explains the colorants used in firework creations:

Color= Compound

Red= strontium salts, lithium salts

lithium carbonate, Li2CO3 = red

strontium carbonate, SrCO3 = bright red

Orange= calcium salts

calcium chloride, CaCl2

calcium sulfate, CaSO4·xH2O, where x = 0,2,3,5

Gold= incandescence of iron (with carbon), charcoal, or lampblack

Yellow= sodium compounds

sodium nitrate, NaNO3

cryolite, Na3AlF6

Electric White= white-hot metal, such as magnesium or aluminum

barium oxide, BaO

Green= barium compounds + chlorine producer

barium chloride, BaCl+ = bright green

Blue= copper compounds + chlorine producer

copper acetoarsenite (Paris Green), Cu3As2O3Cu(C2H3O2)2 = blue

copper (I) chloride, CuCl = turquoise blue

Purple= mixture of strontium (red) and copper (blue) compounds

Silver= burning aluminum, titanium, or magnesium powder or flakes

I hope this answers the question you have! If not, I apologize.

8 0

3 years ago