20 pts. Hydrogen and oxygen react to form water.

1 answer:

3 0

A. would be H20 because O is 2- and H is 1+ so it needs to balance to 0.
sorry I don't know the others but I hope this helps with letter A

You might be interested in

THIS IS URGENT

strojnjashka [21]

A. wavelength

wavelength is the distance between 2 crests of a wave

3 0

4 years ago

Read 2 more answers

A balanced chemical equation used to prepare ammonium carbonate, (nh4)2co3 , is: 2 n h 3 ( g ) + c o 2 ( g ) + h 2 o ( l ) ⟶ ( n

Tems11 [23]

Answer:

This a simple stoichiometry problem using the ideal gas law.

First take the grams of ammonium carbonate and convert it to moles using its molar mass and dividing. 11.9 g/96.0932 g/mol= .12384 mol

Now use a molar conversion using the balanced equation,

1 mol (NH4)2CO3 ---> 4 mol gas formed (2 mol NH3 + 1 mol CO2 + 1 mol H2O) = .12384 x 4 = .49535 mol gas

PV=nRT

V=nRT/P= .49535mol (.08206 Lxatm/molxK) (296K)/ (1.03 atm)=11.682 L

7 0

3 years ago

How many elements have been discovered so far by scientists

Inessa [10]

Answer:

118 elements have been discovered so far

Explanation:

6 0

3 years ago

List 3 scenarios for a substance being classified as a weak acid

malfutka [58]

A way to classify an acid as being weak is to determine how strongly the substance conducts electricity. If the acid or base conducts electricity strongly, it is a strong acid or base. If the acid or base conducts electricity weakly, it is a weak acid or base.

4 0

3 years ago

Read 2 more answers

A buffer solution contains 0.306 M C6H5NH3Br and 0.418 M C6H5NH2 (aniline). Determine the pH change when 0.124 mol HCl is added

Ulleksa [173]

Answer: The pH change of the buffer is 0.30

Explanation:

To calculate the pH of basic buffer, we use the equation given by Henderson Hasselbalch:

$pOH=pK_b+\log(\frac{[\text{conjugate acid}]}{[\text{base}]})$