CHEMISTRY HIGH SCHOOL

Erosion piles up in low places to form:soil and sand
lava and soil
magma and silt
sand and lava

Answers

Answer 1
Answer: Soil and sand is the answer to this question
Answer 2
Answer:

Answer:

suck dryeeeeeeeeeeeeeeeeeeeeeeeeeeeewwkkffjfkv3kmc,kflr

Explanation:

Related Questions

How much heat energy is produced by 0.5 Wh of electrical energy
A covalent bond forms a. when an element becomes a noble gas. b. when atoms share electrons. c. between metals and nonmetals. d. when electrons are transferred from one atom to another.
What sort of reaction happens when a hydrogen-2 atom and a hydrogen-3 atom are converted to a helium-4 atom?fissionfusionchemicalionic
Which state of matter has a definite volume but can change its shape?A.) SolidB.)gasC.)liquid
Which component in this mixture has the lowest density? A. glass. . B. water. . C. sawdust. . D. sand

Which of the following elements is an example of a metalloid? Silicon

Sodium

Silver

Platinum

Answers

Sodium is an earth-metal (group one), sliver and platinum are d-block metals.... Thus silicon is the metalloid and that is true because it looks like a metal being shiny blue-gray but it exhibit non-metal characteristics, except the fact that it can conduct electricity in a heated state.
The group of metalliods in the periodic table include: antimony, arsenic, boron, silicon, germanium, polonium all display semi-metal properties. So the answer would be Silicon.

Required nutrients in foods that are made by other living organisms are_______

Answers

Answer: Vitamins

Explanation:

they are nutrients that are made by living things

How many grams of NaOH were dissolved to make a 1.25 L solution of 2.92 M NaOH?

Answers

Answer:

  • 146. g

Explanation:

1) Data:

a) mass of solute = ?

b) volume of solution = 1.25 liter

c) M = 2.92 mol/liter

d) solute NaOH

2) Formulae:

a) Molarity, M = number of moles of solute / volume of solution in liters

b) mass in grams = molar mass × number of moles

3) Solution:

a) Calculate number of moles of solute:

  • M = number of moles of solute / volume of solution in liters

        ⇒ number of moles of solute = M × volume of solution in liters

        ⇒ number of moles of solute = 2.92 mol/liter × 1.25 liter = 3.65 mol

b) Molar mass of NaOH = 39.997 g/mol (you can take this number from internet or calculate it using the atomic masses of Na, O, and H).

c) Calculate the mass of solute:

  • mass in grams = molar mass × number of moles = 39.997 g/mol × 3.65 mol = 145.98905 g = 146. g

The answer must be reported with 3 significant figures, so it is 146. g.

Which metal is more active than NI and less active than Zn?1. Cu
2. Cr
3. Mg
4. Pb

Answers

Answer : The correct option is, (2) Cr (Chromium)

Explanation :

The reactivity series of metal are arranged of the reactivity from the highest to the lowest. Reactivity series is used to determine the products of the single displacement reactions. In the single displacement reaction, the most reactive metal displaces the least reactive metal.

From the given reactivity series we conclude that there are two metal (Mg and Cr) are more reactive metal than the Ni and there are two metal (Pb and Cr) are less reactive metal than the Zn. So, the Cr (Chromium) is the metal which is more active than Ni and less active than Zn.

Hence, the correct option is, (2) Cr
Cr is more active than nickel and less active than zinc.

Which layer spins creating Earth’s magnetic feild

Answers

The Outer Core

Explanation: Deep inside the planet, in a region known as the outer core, the magnetic field of the planet is created.

The atoms of a certain material can absorb red and blue light frequencies. What happens to yellow light that shines on it? It is absorbed.
It is reflected.
It is transmitted.
It is either reflected or transmitted.

Answers

Answer: It is either reflected or transmitted.

Explanation:

The color of the objects is due to the light reflected to our eyes.The light falls on the surface of the object and the color which does not get absorbed by the object gets transmitted or reflected and thus appear to be of the same color as the reflected or transmitted light.

Example:  If an object absorbs all of the frequencies of visible light except for the frequency associated with green light, then the object will appear green in color.
It is reflected ir transmitted depending on what the material is. The color that something appears is actually the color that it reflects or transmits and not the color that it absorbs. I hope this helps.
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When the first periodic table of the elements was published, the elements were arranged by atomic mass. Although several elements seemed out of order, later discoveries showed the order to be correct. Which event most likely helped the development of the periodic table?
3 x 1023 molecules of element Z have a mass of 38 g. What is the mass of 1 mole?