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2 years ago

How does weathering change rock and minerals

2 answers:

4 0

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.

Phantasy [73]2 years ago

3 0

Weathering is the process of breaking large rocks and boulders into much smaller ones. Weathering can be brought about by wind and water mostly. Sometimes even biological forces account for some types of weathering.

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What is the product of the unbalanced equation below?

Stolb23 [73]

Answer:

Explanation:

The answer is D. I'm not sure that it is a solid. I don't think it is a ppte, which is the only way it can be a true solid. It is ionic if the reaction is taking place in water and there is someway to start the reaction. Be that as it may, the internal balace numbers of the chemical produced is the only possible answer. The balanced eq;uatioon is

2Al + 3Br2 ==> 2AlBr3

3 0

2 years ago

Which statement is correct regarding the rate of the reaction below? 3A + B 4X + 2Y The rate of disappearance of B is three time

V125BC [204]

First, let's write the givens in the form of a chemical equation:
3A + B ...................> 4X + 2Y

Now we find that this equation implies the following:
For every 4X and 2Y formation, 3A and 1B must disappear (react).

Comparing this implication to the above choices, we find that the right answer is: The rate of formation of X is four times the rate of disappearance of B.

7 0

2 years ago

Which statement is a correct expression of the Law of Conservation of Mass?

Phantasy [73]

Law of Conservation of Mass - "The total mass after a chemical reaction is exactly the same as the mass before"

6 0

2 years ago

Indicate the number of h2 and n2 molecules needed to yield two molecules of Nh3

kati45 [8]

The balanced chemical reaction and or equation for the famous haber or ammonia process would be :

3H2 + N2 => 2NH3.

8 0

3 years ago

A car traveling at a constant speed travels 175 miles in four hours. How many minutes will it take for the car to travel 1000 fe

elena-14-01-66 [18.8K]

It takes 0.26 minutes to travel 1000 feet

Solution:

Given that car traveling at a constant speed travels 175 miles in four hours

Distance = 175 miles

Time taken = 4 hours

Convert the units to feet and minute

Given that,

1 mile = 5280 feet

175 miles = 5280 x 175 feet = 918720 feet

Also we know that,

1 hour = 60 minutes

4 hours = 60 x 4 minutes = 240 minutes

Thus, we got,

Distance = 918720 feet

Time taken = 240 minutes

Find the speed of car

Speed is given by formula:

$speed = \frac{distance}{time}$

$speed = \frac{918720}{240} = 3828$

Thus speed of car is 3828 feet per minute

How many minutes will it take for the car to travel 1000 feet?

Let "x" be the minutes needed for 1000 feet

speed of car is 3828 feet per minute

1 minute = 3828 feet

x minute = 1000 feet

This forms a proportion. We can solve by cross multiplying

$x \times 3828 = 1000 \times 1\\\\x = \frac{1000}{3828}\\\\x = 0.26$

Thus it takes 0.26 minutes to travel 1000 feet

7 0

3 years ago