A lahar is a type of mudflow that occurs

Answers

Answer 1

Answer:

after a volcanic eruption is the answer

Mudflows of volcanic eruptions are the most dangerous, and are called lahars

Related Questions

Which of the following is an oxidation-reduction reaction?Fe2O3 + 3CO mc009-1.jpg 2Fe + 3CO2 CuSO4 + 2NaOH mc009-2.jpg Cu(OH)2 + Na2SO4 2NaOH + H2CO3 mc009-3.jpg Na2CO3 + 2NaOH Pb(NO3)2 + Na2SO4 mc009-4.jpg 2NaNO3 + PbSO4
What would be the mass of Iron(II) chloride obtained when 450g of Sodium Chloride is added to Iron(II) oxide?
Predict the products in the following reaction: AgNO3(aq) + Na2CrO4(aq) →
Which of the examples below is a chemical agent? Select one:a. Anthraxb. Uraniumc. Chlorined. Dynamite
Substances made of two or more elements which are not chemically bonded are known as

A 0.0489 mol sample of a nutrient substance, with a formula weight of 114 g/mol, is burned in a bomb calorimeter containing 6.56 × 10² g h2o. given that the fuel value is 2.04 × 10⁻¹ in nutritional cal when the temperature of the water is increased by 1.73°c, calculate the fuel value in kj.

Answers

To calculate the fuel value in kJ, we need to convert the nutritional calories to kilojoules.

1 nutritional calorie (cal) = 4.184 kilojoules (kJ)

First, let's calculate the energy released by burning the 0.0489 mol sample of the nutrient substance in calories:

Energy released = moles of nutrient substance * formula weight * fuel value

Energy released = 0.0489 mol * 114 g/mol * 2.04 × 10⁻¹ cal

Next, let's convert the energy released from calories to kilojoules:

Energy released (kJ) = Energy released (cal) * 4.184 kJ/cal

Now, let's substitute the given values into the equations:

Energy released = 0.0489 mol * 114 g/mol * 2.04 × 10⁻¹ cal
Energy released ≈ 0.11185 cal

Energy released (kJ) = 0.11185 cal * 4.184 kJ/cal
Energy released (kJ) ≈ 0.467 kJ

Therefore, the fuel value of the nutrient substance is approximately 0.467 kJ.

Final answer:

To calculate the fuel value in kJ, convert nutritional calories to joules and then to kilojoules.

Explanation:

To calculate the fuel value in kJ, we need to convert the nutritional calories to joules and then to kilojoules. We can use the equation: fuel value (in kJ) = fuel value (in cal) x 4.184 / 1000. Given that the fuel value is 2.04 × 10⁻¹ nutritional cal, we can substitute it into the equation to get the fuel value in kJ.

fuel value (in kJ) = 2.04 × 10⁻¹ x 4.184 / 1000 =8.5288 x 10⁻³ kJ

Learn more about Fuel value here:

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A medium-temperature star like the Sun would most likely emit its most intense radiation as _____. A. Ultraviolet light B. Visible light C. Microwaves D. Radio waves

Answers

Answer:

The correct answer is option B, that is, visible light.

Explanation:

The Sun is a prime source of ultraviolet rays. Although the Sun discharges all of the distinct types of electromagnetic radiation, 99 percent of its rays are in the form of ultraviolet rays, visible light, and infrared rays. The Sun emits radiation all through the electromagnetic spectrum, that is, from extremely high-energy X-rays to ultra-lengthy wavelength radio waves, and everything that comes in between. However, the peak of the emission takes place in the visible part of the spectrum.

What is the molarity of 750 ml of a solution containing 2.10 moles of Na_2SO_4?

Answers

Answer:

$\huge{ \boxed{ 2.8 \: \text{M}}}$

Explanation:

The molarity or concentration of $Na_2SO_4$ can be found by using the formula;

$c = (n)/(v)$

c is the concentration in M , mol/dm³ or mol/L

v is the volume in L or dm³

n is the number of moles

From the question;

n = 2.1 moles

v = 750 mL which has to be converted to litres

$1000 \: ml = 1l \n \therefore \: 750 \: ml = (750)/(1000) * 1l \n = 0.75 \: l \n \n \therefore \: v = 0.75 \: l$

$\therefore \: c = (2.1)/(0.75) = 2.8$

We have the final answer as;

2.8 M

Dalton hypothesized that atoms are indivisible and that all atoms of an element are identical. It is now known that _____. A. all of Dalton's hypotheses are correct
B. atoms of an element can have different numbers of protons
C. atoms are divisible
D. all atoms of an element are not identical but they must all have the same mass

Answers

Dalton hypothesized that atoms are indivisible and that all atoms of an element are identical. It is now known that atoms are divisible. The answer is letter C

A build up of electric charge on an object

Answers

Static electricity is build up of electrical charges on the surface of some object materials.

Static electricity just did the test

What is the most abundant gas in Earth's present day atmosphere?methane
oxygen
carbon dioxide
nitrogen

Answers

nitrogen. air consists 78% of nitrogen gas

The answer is nitrogen

Other Questions

How many grams of potassium chloride are produced if 25g of potassium chlorate decompose.

Given the balanced equation representing a phase change:C6H4Cl2(s) + energy==>C6H4Cl2(g)Which statement describes this change?(1) It is endothermic, and entropy decreases.(2) It is endothermic, and entropy increases.(3) It is exothermic, and entropy decreases.(4) It is exothermic, and entropy increases.

Explain how you know the numbers of atoms in your formula. Carbon Monoxide

Which statement describes a property of covalent compounds? They have a high boiling point because of strong intermolecular forces. They have a low boiling point because of weak intermolecular forces. They have a low melting point because of strong intermolecular forces. They have a high melting point because of weak intermolecular forces.