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3 years ago

Where does lava in volcanoes come from?

1 answer:

4 0

Magma can push through holes or cracks in the crust of the volcano, causing a volcanic eruption. Which is when magma flows or erupts onto earth's surface, which is what you call lava (whenever it goes onto the earths surface).

You might be interested in

How can you tell from the name the types of bonds present in a hydrocarbon?

Darya [45]

Answer:

Alkane

Alkene

Alkyne

Explanation:

Alkane=1 bond (Saturated hydrocarbon)

Alkene= 2 bonds (Unsaturated hydrocarbon)

Alkyne= triple bonds (Unsaturated hydrocarbon)

Formula of Alkane = CnH2n+2

Formula of Alkene = CnH2n

Formula of Alkyne = CnH2n-2

7 0

3 years ago

At 25 °C and 775 Torr, carbon dioxide has a solubility of 0.0347 M in water. What is its solubility at 25 °C and 1190 Torr? g

aniked [119]

Answer:

g the day off and I will be there at work and I will be there at work and I will be there you go again with the person

Explanation:

no one is here yet but I can tomorrow if you have time can you come to my house and I will be there at work and I will be there at work and I will be there at work and I will be there

6 0

3 years ago

Colby wants to learn more about the feeding habits of ants.

emmasim [6.3K]

Answer:

a. form a hypothesis, conduct an experiment, record data, make a conclusion

Explanation:

Performing scientific investigations involved following the SCIENTIFIC METHOD, which is a rule or guideline followed in order to discover knowledge about natural phenomena. The scientific method has been divided into steps viz:

- Making observation/asking questions: In this case, the problem is HOW ANTS FEED.

- Formulating hypothesis: The hypothesis is a testable explanation given to solve the asked question.

- Testing hypothesis: The hypothesis must be able to be tested via conducting an experiment.

- Analyze result: The results of the test is recorded and analysed as data.

- Make conclusions: The conclusion either accepts or rejects the hypothesis depending on the result of the experiment.

Therefore, based on this; form a hypothesis, conduct an experiment, record data, make a conclusion are the steps Colby should take to best study the feeding patterns of ants

6 0

4 years ago

What is the ph of with a 4.6 x 10-6 M hydroxide ion concentration?

nlexa [21]

<h3>Answer:</h3>

pH = 8.66

<h3>Explanation:</h3>

The pH refers to the acidity or alkalinity of a solution.
It is calculated by getting the negative logarithm of Hydrogen ions concentration.

pH=-log[H⁺]

In this case;

we are given [OH⁻] as 4.6 x 10^-6 M

We are required to calculate the pH

We need to know that;

pH + pOH = 14

pOH = -log[OH⁻]

To get the pH we can calculate the pOH first,

pOH = -log[4.6 x 10^-6 M]

= 5.34

but, pH + pOH = 14

Therefore, pH = 14 - pOH

= 14 - 5.34

= 8.66

Therefore, the pH of the solution is 8.66

3 0

3 years ago

What is the purpose of constructing a calibration curve

stellarik [79]

Answer:

Calibration curves are used to understand the instrumental response to an analyte, and to predict the concentration of analyte in a sample.

5 0

3 years ago