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3 years ago

What are the possible consequences of adding a chemical to the environment

Chemistry

2 answers:

Sonbull [250]3 years ago

8 0

Ruins the soil and the weather

alekssr [168]3 years ago

4 0

Answer:

The release into the air of chemicals and particles can cause direct damage to the troposphere (air pollution); alter the composition and function of atmospheric layers (greenhouse effect) or other indirect damages (ozone layer depletion).

Explanation:

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The equation, 2 H2(g) + O2(g) arrow 2 H2O(l), represents an equation for a standard formation reaction. True False

faust18 [17]

I think it is true. The formation reaction always means that the product substance is made directly and all by the elements of the reactants. And standard means under 25℃ and one atmosphere.

3 0

4 years ago

How many molecules are there in 45 moles of diphosphorus trioxide?

Artist 52 [7]

Answer:

$2.71(10^{25})$ molecules

Explanation:

Remember 1 mol is equal to Avogadro's number

$45 mol (\frac{6.02(10^{23}) molecules}{1 mol})$

5 0

3 years ago

Consider the reaction.

vovangra [49]

Answer: The value of Keq for the reaction expressed in scientific notation is $1.6\times 10^{-5}$

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios.

For the given chemical reaction:

$2NOCl(g)\rightarrow 2NO(g)+Cl_2(g)$

The expression for $K_{eq}$ is written as:

$K_{eq}=\frac{[NO]^2\times [Cl_2]}{[NOCl]^2}$

$K_{eq}=\frac{(1.2\times 10^{-3})^2\times (2.2\times 10^{-3})}{(1.4\times 10^{-2})^2}$

$K_{eq}=1.6\times 10^{-5}$

The value of Keq for the reaction expressed in scientific notation is $1.6\times 10^{-5}$

3 0

3 years ago

HELP DUE MONDAY!! Don’t understand

Katyanochek1 [597]

Answer:

Concept: Chemical Analysis

You need to start by graphing the data and then analyzing it.
We can see that the horse has a distance in meters of 980 at the end of the 10 seconds hence it is the fastest.
The horse line has a linearly representation, while the alternate line has parabolic tendencies towards the end. The steeper line indicates a faster change in time or velocity which results in a greater distance traveled indicating that the horse is faster.
*I have confidence you can graph that*

5 0

3 years ago

Which statements about the Gulf Stream are true? Choose all answers that are correct. The Gulf Stream is a cyclic change in the

iVinArrow [24]

Answers:

B, C, and D

Explanation:

B. True. The direction is generally northward, although it turns more to the east off North Carolina (see map).

C. True. The Gulf Stream is an ocean current, because it flows across the Atlantic Ocean.

D. True. It transports warm water from the Gulf of Mexico and the Caribbean towards Iceland and the British Isles.

A. Wrong. The Gulf Stream is not cyclic. It always flows in the same direction, roughly northeast.

6 0

3 years ago