3 years ago

Which is the first step to take to help reduce pollution

Chemistry

1 answer:

rjkz [21]3 years ago

6 0

B. Gain information about the current state of the environment and ways to improve it.

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Can u please help me with these 2 answers!

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5 is 2 I’m not sure about 4 though....

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3 years ago

A block of aluminum occupies a volume of 15.0 mL and weighs 45 grams.

vladimir2022 [97]

Answer: density equals 3 g/mL

Step by step explanation:

D=m/v
D=45/15
D=3

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3 years ago

Name the following compound:

photoshop1234 [79]

Answer:

3-methylhexane

Explanation:

you start counting from the longest chain to determine the correct name

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Determine how many atoms of pure silver will be created when 19.83 x 1023 atoms of copper are used in the following reaction:

Lubov Fominskaja [6]

Answer:

$\boxed{3.966 \times 10^{24}\text{ atoms of Ag}}$

Explanation:

(a) Balanced equation

Cu + 2AgNO₃ ⟶ Cu(NO₃)₂+ 2Ag

(b) Calculation

You want to convert atoms of Cu to atoms of Ag.

The atomic ratio is ratio is 2 atoms Ag:1 atom Cu

$\text{Atoms of Ag} = 19.83 \times 10^{23}\text{atoms Cu} \times \dfrac{\text{2 atoms Ag}}{\text{1 atom Cu}}\\\\= 3.966 \times 10^{24}\text{ atoms of Ag}\\\\\text{The reaction will produce }\boxed{\mathbf{3.966 \times 10^{24}}\textbf{ atoms of Ag}}$

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3 years ago

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A sample of an ideal gas at 1.00 atm and a volume of 1.84 L was placed in a weighted balloon and dropped into the ocean. As the

Inessa05 [86]

Answer:

0.0613 L

Explanation:

Given data

Initial pressure (P₁): 1.00 atm

Initial volume (V₁): 1.84 L

Final pressure (P₂): 30.0 atm

Final volume (V₂): ?

Since we are dealing with an ideal gas, we can calculate the final volume using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁ / P₂

V₂ = 1.00 atm × 1.84 L / 30.0 atm

V₂ = 0.0613 L

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4 years ago