2 years ago

Help! The products of a chemical equation are CO2 and 2H20. Which set of atoms

Chemistry

2 answers:

elixir [45]2 years ago

5 0

D. Ap3x just did it

---------

Zarrin [17]2 years ago

4 0

Answer:

D. 1 C, 4 O and 4 H

Explanation:

a p e x, just took the quiz

You might be interested in

How many millimeters are there in 1 kilometer

Marysya12 [62]

1.000.000 is the correct answer

4 0

2 years ago

How many moles of gas does it take to occupy 120 L at a pressure of 233 kPa and a temperature of 340 K?

natka813 [3]

A would be correct have a nice day.

5 0

2 years ago

Read 2 more answers

A sample of nitrogen is initially at a pressure of 1.7 kPa, a temperature of -10 C and a volume of 7.5 m3. Then the volume is de

zhannawk [14.2K]

Answer:

$\boxed{\text{2.6 kPa}}$

Explanation:

To solve this problem, we can use the Combined Gas Laws:

$\dfrac{p_{1}V_{1} }{T_{1}} = \dfrac{p_{2}V_{2} }{T_{2}}$

Data:

p₁ = 1.7 kPa; V₁ = 7.5 m³; T₁ = -10 °C

p₂ = ?; V₂ = 3.8 m³; T₂ = 200 K

Calculations:

(a) Convert temperature to kelvins

T₁ = (-10 + 273.15) K = 263.15 K

(b) Calculate the pressure

$\begin{array}{rcl}\dfrac{1.7 \times 7.5 }{263.15} & = & \dfrac{p_{2} \times 3.8}{200}\\\\0.0485 & = & 0.0190p_{2}\\p_{2} & = & \textbf{2.6 kPa}\\\end{array}\\\text{The new pressure of the gas is \boxed{\textbf{2.6 kPa}}}$

7 0

2 years ago

The density of ethanol is 0.789 g/cm^3 at 20 degrees C. What volume of ethanol has a mass of 15.5 grams?

lys-0071 [83]

<span>density = mass / volume

given the quotient , we have density and mass, volume can be easily calculated as:

volume = mass / p =15.5 g / 0.789 g/cm^3

=~ 20 cm^3 (dimension ally constant)</span>

6 0

3 years ago

A balloon filled with 6.0 MLS of air at a pressure of 15 PSI. when placed into a bell jar, the pressure decreased to 2.4 PSI. wh

lyudmila [28]

Answer:

2.6

Explanation:

2.6

5 0

2 years ago