What is the volume of 4.5 moles of H2 at STP?

Corn plants and milkweed plants grow in the same area. Over several years, the milkweed plants have taken over the field and the

Katyanochek1 [597]

Answer:

This question is incomplete, the complete part of the question is as follows:

This best demonstrates which type of an interaction between the plants?

A. cooperation

B. parasitism

C. commensalism

D. competition

The answer is D

Explanation:

Organisms in their natural environment interact with one another in so many ways. The ways by which this interaction occurs are; competition, predation, commensalism etc.

Competition is the interaction between two organisms in which one or both organisms are harmed due to limited resources. Competition occurs when the organisms involved occupy the same niche or utilize the same limited resources.

In this question involving corn plants and milkweed plants. They are said to grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow. In this case, there is a limited space for growth, hence, the corn plant and milkweed COMPETE.

8 0

3 years ago

Passing an electric current through a sample of water (H2O) can cause the water to decompose into hydrogen gas (H2) and oxygen g

Tema [17]

<u>Answer:</u> The mass of water that must be reacted is 56.28 grams.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ....(1)

Given mass of oxygen = 50 g

Molar mass of oxygen = 32.00 g/mol

Putting values in equation 1, we get:

$\text{Moles of oxygen}=\frac{50g}{32g/mol}=1.5625mol$

For the given chemical equation:

$2H_2O\rightarrow 2H_2+O_2$

By Stoichiometry of the reaction:

1 mole of oxygen is produced when 2 moles of water is reacted.

So, 1.5625 moles of oxygen is produced when = $\frac{2}{1}\times 1.5625=3.125mol$ of water is reacted.

To calculate the mass of water, we use equation 1:

Moles of water = 3.125 moles

Molar mass of water = 18.01 g/mol

Putting values in equation 1, we get:

$3.125mol=\frac{\text{Mass of water}}{18.01g/mol}\\\\\text{Mass of water}=56.28g$

Hence, the mass of water that must be reacted is 56.28 grams.

3 0

4 years ago

What is the density of a piece of wood that has a mass of 35.0 grams and a volume of 26.4 cm3

vladimir2022 [97]

Answer:

We have the final answer as

Explanation:

The density of a substance can be found by using the formula

<h3> $density = \frac{mass}{volume}$ </h3>

From the question

mass = 35 g

volume = 26.4 cm³

The density of the wood is

$density = \frac{35}{26.4} \\ 1.325757575757...$

We have the final answer as

Hope this helps you

3 0

3 years ago

The volume of oxygen gas in a container is 587cm3 at s t p. Calculate its

JulijaS [17]

Answer:

Explanation:

Debate Topics For Teens

by Loraine Walters

Creatubject.

If you want to promote critical reasoning and analysis among teenagers, be sure to go over these debate topics for teens and choose the ones that you think will suit their interests best. An interesting topic can help students to learn how to express their point of view and understand that it is valued. All in all, teens are about to enter the adult world, critical thinking and research will help them on their journey, and each school has the resources necessary for their development.

List of 25 Debate Topics For Teens

All citizens who do not vote should pay a fine.

All students should have an after school job.

Are professional athletes overpaid?

Are single-sex classrooms beneficial?

Are sports programs for children and teenagers too intense?

Are the lyrics of popular music harmful to children’s development?

Art Education

Campus Security

Considerations

Do helicopter parents cause harm to their children’s development?

Does the gender wage gap still exist?

Every student should be required to take a performing arts course.

Internet Privacy

PE should be required of all students throughout high school.

Renewable forms of energy should be subsidized by the government.

School Uniforms

School uniforms should be required in school.

Should cheerleading be considered a sport?

Single-gender Schools

Students Grading Teachers

Teen Violence

The legal drinking age should be lowered to 18.

The voting age should be lowered to 16 years old.

Wheeled Transportation

Year round education is not a good idea for student learning.

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