3 years ago

_H2 SiCl2 + _H2O −−→ _H8 Si4O4 + _HCl

Chemistry

1 answer:

Serjik [45]3 years ago

6 0

Answer:

Explanation:

pls mark brainliest right

You might be interested in

What experimental evidence leads scientists to believe that only quantized electronic energy states exist in atoms?

MAXImum [283]

Absorption and emmision spectrum experiment.

3 0

3 years ago

Read 2 more answers

Which of the following reactions will produce a neutral salt?

anzhelika [568]

Strong acid weak base

7 0

3 years ago

What would be the volume in liters of an 2.45 liter sample of gas at 594 °C

Ber [7]

Answer:

$V_2= 1.19L$

Explanation:

Hello there!

In this case, since the STP conditions are defined by 1 atm (101.3 kPa) and 273 K, it is possible for us to use the combined gas law for this problem as we are given variable pressure, temperature and volume:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

In such a way, solving for V2 as the final volume, we obtain:

$V_2=\frac{P_1V_1T_2}{P_2T_1} =\frac{156kPa*2.45L*273.15K}{101.3kPa*(594+273)K}\\\\V_2= 1.19L$

Regards!

6 0

3 years ago

Copper(II) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750.0 mL of a 1.25 M solution?

Hitman42 [59]

Answer:209.53

Explanation:

Molar concentration=moles/Volume. Volume is given as 750mL which can be converted as 0.75l,so moles of CuBr2 is molar concentration ×Volume= 1.25×0.75=0.9375

Mole =mass of CuBr2/molecular Mass of CuBr2.

Molecular Mass of CuBr2 is 63.5+80×2=223.5(mass number of Cu=63.5 and Br=80).

So mass required= 223.5×0.9375=209.53g

8 0

3 years ago

Read 2 more answers

Find the average speed of a person who swims 105 m in 70 s

spin [16.1K]

Answer:

v = 1.5 m/s

Explanation:

Given that,

Distance covered by a person, d = 105 m

Time taken, t = 70 s

We need to find the average speed of the person. We know that the average speed is given by :

$v=\dfrac{d}{t}\\\\v=\dfrac{105\ m}{70\ s}\\\\v=1.5\ m/s$

So, the average speed of the person is equal to 1.5 m/s.

4 0

3 years ago