What does GCAT help us remember?

Ammonium hydroxide ionizes as follows: NH4OH(s) NH4 +(aq) + OH-(aq). If an excess of ammonium salt, such as NH4Cl (which ionizes

Flauer [41]

Decrease the concentration of OH-

7 0

4 years ago

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Results in the complete loss of an organism's home.

Dafna11 [192]

Answer:

Hey!

Because the organisms habitat has been destroyed, (by many reasons such as Deforestation and Climate Change), the capacity to hold the current population of the plant or animals is declined which can eventually lead to the scenario of EXTINCTION

Explanation:

HOPE THIS HELPS!!

5 0

3 years ago

What can be determined from the frequency and wavelength of a wave?

sp2606 [1]

The frequency and wavelength of a wave allows you to determine the speed of a wave. Because the speed of a wave equals wavelength times frequency, you can determine speed knowing the both the frequency and wavelength.

5 0

3 years ago

Which of the following statements describe chemical properties?

Y_Kistochka [10]

Answer:

A. Oxygen gas supports combustion.

B. Hydrofluoric acid reacts with glass.

C. Fertilizers help to increase agricultural production.

Explanation:

Chemical properties can only be observed when a chemical change, i.e. a change in the chemical composition, occurs.

On the other hand, physical properties are observed or measured without altering the composition of the substances.

Typical examples of chemical properties are reactivity, flammability, combustion, oxidation states, acidity, among others that require to carry out a chemical reaction to be observed.

Typical examples of physical properties are freezing point, melting point, boiling point, density, solubility, corrosiveness, among others.

Thus, as for the choices you have:

A. Oxygen gas supports combustion: the only way to observe this property is by carrying out a combustion reaction, so this describes a chemical property.

B. Hydrofluoric acid reacts with glass: again, only by letting hydrofluoric acid react with glass this can be observed, so this is another example of a chemical property.

C. Fertilizers help to increase agricultural production: fertilizers are absorbed by the plants and converted by biochemical reactions, so this also describes a chemical property.

D. Water boils below 100°C on top of a mountain: boiling is a change of state, the water is H₂O and continues having the same composition after boiling, so this describes a physical property.

E. Lead is denser than aluminum: density is measured by physical media, measuring mass and volume; so this is a physical property.

4 0

3 years ago

Can someone help me please have a question im stuck on in my physical science class

9966 [12]

Hey there!
Usually, there's some sort of force, whether it be a wave or an earthquake.
A medium is what that force travels through.
Here's an example.
In water, the water waves would be the force, and the water would be the medium.
But not all matter needs a medium.
For example, we have light. If you've ever heard the speed of light being 300,000 meters/second on a vacuum, that means empty, open space. It's what's classified as an electromagnetic wave, and those actually don't need a medium.
Hope this helps!

7 0

4 years ago

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