All categories

3 years ago

Write the complete and balanced combustion reaction for H2+O2—>

Chemistry

1 answer:

Bas_tet [7]3 years ago

7 0

Answer:

2H2 + 02 --> 2H20

Explanation:

H2 + 02 --> H2O

H =2x2 = 4 | H = 2 x 2 = 4

O =2 | O = 1 x <u>2</u> = 2

dm me if u have questions regarding the solution hihi :)

You might be interested in

What mass of lithium phosphate would you mass to make 2.5 liter of 1.06 M lithium

alex41 [277]

Answer:

Approximately $3.06 \times 10^{2}\; \rm g$ (approximately $306\; \rm g$ .)

Explanation:

Calculate the quantity $n$ of lithium phosphate in $V = 2.5\; \rm L$ of this $c = 1.06\; \rm M = 1.06\; \rm mol \cdot L^{-1}$ lithium phosphate solution.

$\begin{aligned}n &= c \cdot V\\ &= 2.5\; \rm L \times 1.06\; mol \cdot L^{-1}\\ &= 2.65\; \rm mol\end{aligned}$ .

Empirical formula of lithium phosphate: $\rm Li_3PO_4$ .

Look up the relative atomic mass of $\rm Li$ , $\rm P$ ,and $\rm O$ on a modern periodic table:

$\rm Li$ : $6.94$ .
$\rm P$ : $30.974$ .
$\rm O$ : $15.999$ .

Calculate the formula mass of $\rm Li_3PO_4$ :

$M(\rm Li_3PO_4) = 3 \times 6.94 + 30.974 + 4 \times 15.999 = 115.79\; \rm g \cdot mol^{-1}$ .

Calculate the mass of that $n = 2.65\; \rm mol$ of $\rm Li_3PO_4$ formula units:

$\begin{aligned}m &= n \cdot M \\ &= 2.65\; \rm mol \times 115.79\; \rm g\cdot mol^{-1} \\ &\approx 3.06 \times 10^{2}\; \rm g \end{aligned}$ .

5 0

3 years ago

Small objects denser than water can float on its surface because water has high _____.

seraphim [82]

Surface tension. Im not sure if this is completely right but I hope I helped :)

5 0

3 years ago

Read 2 more answers

Technician A says that a soldering gun must be energized for several minutes before it warms up to the melting point of solder.

Trava [24]

Answer:

Both are right

Explanation:

A constant heat must be supplied for several minutes to soldering gun to overcome the melting point of solder. A butane torch is a type of soldering device powered (energised) by the burning of butane gas to melt and solder common metals

4 0

3 years ago

Which of the following correctly shows the 3 steps of

natka813 [3]

Answer:

D. Evaporating, condensing, collecting

Explanation:

The mixture is first heated so that the liquid needed to be collected can be evaporated into gas. Then, the gas is condensed back to liquid in a condenser. (usually the condenser is supplied with cold running water so speed up the condensation). Then, the liquid is collected after being condensed, in an apparatus such as a conical flask or a water bath.

3 0

3 years ago

NaCl is formed by a covalent bond.<br> True<br> False

andreev551 [17]

False. That would be an Ionic Bond.

6 0

3 years ago