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2 years ago

Which of the following best describes an ecosystem in a California tide pool?

1 answer:

8 0

Answer: i think your answer is<u> The giant green anemones, the ochre sea stars, and the red octopuses</u> because an ecosystem means all the organisms and the physical environment with which they interact. If not then your other option would be <u>A a school of fluffy sculpins.</u>

Hope this helped you!

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The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the

NikAS [45]

Answer: 0.225 atm

Explanation:

For this problem, we have to use Boyle's Law.

Boyle's Law: P₁V₁=P₂V₂

Since we are asked to find P₂, let's manipulate the equation.

P₂=(P₁V₁)/V₂

$P_{2} =\frac{(1.00atm)(0.45L)}{2.00L}$

With this equation, the liters cancel out and we will be left with atm.

P₂=0.225 atm

6 0

3 years ago

Thực trạng tồn dư nitrat trên rau và an toàn thực phẩm

hram777 [196]

You are a botereleg

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4 0

2 years ago

A lab technician mixes a 0.730 M solution of sodium bromide (NaBr) and water. The volume of the solution is 135 milliliters.

Ivenika [448]

Answer:

We need 10.14 grams of sodium bromide to make a 0.730 M solution

Explanation:

Step 1: Data given

Molarity of the sodium bromide (NaBr) = 0.730 M

Volume of the sodium bromide solution = 135 mL = 0.135 L

Molar mass sodium bromide (NaBr) = 102.89 g/mol

Step 2: Calculate moles NaBr

Moles NaBr = Molarity NaBr * volume NaBr

Moles NaBr = 0.730 M * 0.135 L

Moles NaBr = 0.09855 moles

Step 3: Calculate mass of NaBr

Mass NaBr = 0.09855 moles * 102.89 g/mol

Mass NaBr = 10.14 grams

We need 10.14 grams of sodium bromide to make a 0.730 M solution

3 0

3 years ago

Read 2 more answers

Chemistry questions?

Liono4ka [1.6K]

Answer:

The first one is 425g of copper

Explanation:

6 0

2 years ago

Which part of the atom has to stay the same for it to be the same element? number of neutrons

kolezko [41]

For it to be the same element it must contain the same number of protons

5 0

3 years ago