3 years ago

Which Chemical Reaction is balanced?

Chemistry

1 answer:

cupoosta [38]3 years ago

7 0

Answer:

Explanation:

The letter A is the correct answer

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Which adaptation is likely to increase the chances of survival of an animal in a rainforest?

LiRa [457]

I know I think it’s a A

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3 years ago

Which is equal to a temperature of 50°F? O 18°C O 46°C O 10°C O 32°C

Alekssandra [29.7K]

C) 10°C

50-32= 18
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3 years ago

Read 2 more answers

What would the volume of gas be at 150 c if it had a volume of 693 ml at 45 c

marissa [1.9K]

Answer:

$\boxed{\text{922 mL}}$

Explanation:

The pressure is constant, so we can use Charles' Law to calculate the volume.

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

Data:

V₁ = 693 mL; T₁ = 45 °C

V₂ = ?; T₂ = 150 °C

Calculations:

(a) Convert temperature to kelvins

T₁ = ( 45 + 273.15) = 318.15 K

T₂ = (150 + 273.15) = 423.15 K

(b) Calculate the volume

$\dfrac{ 693}{318.15} = \dfrac{ V_{2}}{423.15}\\\\2.178 = \dfrac{ V_{2}}{423.15}\\\\V_{2} = 2.178 \times 423.15 = \boxed{\textbf{922 mL}}$

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3 years ago

1. 7.000 mmhg = ______ KPa? 2. 10.00 kPa = ________atm? 3. 15.00 kPa______mmHg?

Minchanka [31]

1 kPa = 7.5 mmHg so 7.0 mmHg / 7.5 mmHg x 1 kPa = .93 kPa

101.3 kPa = 1 atm so 10 kPa / 101.3 kPa x 1 atm = .0987 atm

1 kPa = 7.5 mmHg so 15 kPa x 7.5 mmHg / 1 kPa = 112.5 mmHg

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3 years ago

A certain polyatomic ion contains 49 protons and 50 electrons. What's the net charge of this ion?

timurjin [86]

Explanation:

B more negative charges than positive charges

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2 years ago