Answers
Related Questions
What makes up soil and where do these main components come
from? ASAP
Answers
Answer:
Soil is a mixture of minerals, dead and living organisms (organic materials), air, and water.
Explanation:
Dead organisms decompose(kind of like fertilizer)
water comes from nearby watersheds, precipitation processes, etc.
Answer:
Soil is made up of three main components – minerals that come from rocks below or nearby, organic matter which is the remains of plants and animals that use the soil, and the living organisms that reside in the soil. The proportion of each of these is important in determining the type of soil that is present.
Calculate the reaction rate given the following:
After 2 minutes (120 seconds), the concentration of a product was measured to
increase from 0.0012 M to 1.48 M.
1.48 M/s
0.0123 M/s
0.0012 M/s
-0.0123 M/s
Answers
Answer:
0.0123 M/s
Explanation:
The reaction rate is the rate at which the reaction takes place and results in an increased concentration of the products. The rate of the reaction is 0.0123 M/s.
What is the reaction rate?
The reaction rate is the increase of the concentration of the product with respect to time in seconds. The rate of reaction is given by,
[tex]\rm rate = \rm \dfrac {\Delta C}{\Delta t}[/tex]
Given,
Change in product concentration = 1.478
Time period = 120 seconds
Substituting values in the above equation:
[tex]\begin{aligned} \rm rate &= \rm \dfrac {\Delta C}{\Delta t}\\\\& = \dfrac{1.478}{120}\\\\&= 0.0123 \end{aligned}[/tex]
Therefore, option B. 0.0123 M/s is the reaction rate.
Learn more about reaction rate here:
https://brainly.com/question/13440548
10 points
What is the molar mass of argon?
Answers
Answer:
39.948 u
Explanation:
Fill in the blanks and name the process.
What is the process of ____ reproduction where a cell makes ___ of itself?
Answers
Second blank: copies
What do you already know about the structure of a water molecule?
Answers
Answer:
The key to understanding water's chemical behavior is its molecular structure. A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent. This is because the oxygen atom, in addition to forming bonds with the hydrogen atoms, also carries two pairs of unshared electrons
Explanation:
Hope it helps
Which word should replace the question mark in the diagram?
A) Refraction
B) Reflection
C) Light energy
D) Rainbow
Answers
Answer:
Could you provide a diagram?
Explanation:
what went wrong with the key
Answers
Answer:
omoih
Explanation:
The mass of an atom is equal to the number of
Neutrons, only
Protons, only
Neutrons plus protons
Electrons plus protons
Answers
Explanation:
proton number and neutron number sums up to form the mass number
Answer:
Neutrons & protons
Explanation:
hope it's help..
Why does air with higher amounts of water vapor have a lighter density?
Answers
Answer:
moist air is less dense than dry air because water has a lower molecular weight than nitrogen and oxygen
Answer:
Water vapor is a relatively light gas when compared to diatomic Oxygen and diatomic Nitrogen. Thus, when water vapor increases, the amount of Oxygen and Nitrogen decrease per unit volume and thus density decreases because mass is decreasing.
how to get over a guy u have liked for a year and 4 months
Answers
Answer:
Try to find someone who is interested in you as well as you are with him. But be chill about it and never ever let yourself think your not perfect enough cause you are thee most phenomenal person in the entire planet and there is no one like you, you are special. P.S. there are alot of cute guys out there you just gotta wait until he finds you or you find him.
Explanation:
Answer:
huh
Explanation:
What is the molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution?
Answers
Answer:
D
Explanation:
all ya got to do is divide the moles from the solution... so 3.0 divided by 0.25. put it in a calculator
hope this helps
The molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution is 12M.
What is Molarity?Molarity of a given solution is known as the total number of moles of solute per litre of the solution. A solution that is 1.00 molar (written 1.00 M) contains 1.00 mole of solute for every liter of solution.
Molarity = (No. of moles of solute ÷ Volume of solution in liters)
The unit of molarity is mol L⁻¹.
Molarity is temperature dependent because as temperature changes, volume of the solution also changes.
Given,
3.0 moles of Saline (NaCl)
Volume of solution = 0.25L
Molarity = (No. of moles of solute ÷ Volume of solution in liters)
Molarity = 3 ÷ 0.25 = 12 M
Therefore, The molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution is 12M.
Learn more about molarity, here:
brainly.com/question/8732513
#SPJ2
True or False: Different substances, like shortening and soap, will melt at the same temperature. True False
Answers
explanation:
Answer:
false
Explanation:
different things will have different melting points
What are uses of metals??
Instructions:
1. Do not give the invalid answer.
2. I want full correct answer with full explanations.
Answers
Answer:
Different uses of Metals
Metals are usually very strong, most durable and highly resistant to everyday wear and tear. As such, they have been used since ancient times for a lot of things. And even today with advances in technology and a lot of other things the uses of metals have broadened greatly. Metals even play a key role in the economy. Let’s look at some important and popular metals uses.
In the Construction Industry
In electronics
In medicine
Machinery, Refractory and Automobiles
Decorative products
Other Uses
In the Construction Industry
Metals are the main component in the construction industry. Metals like iron, steel amongst others are the main materials used in construction of buildings and even homes.
In Electronics
Another important application of metals are in electronics. As metals are good conductors of electricity, they are used to making wires and parts for equipments and gadgets that function on electrical current. Popular examples include, TV, mobiles, fridge, iron, computers etc.
In medicine
If you are wondering how, well from a biological perspective metals are found as micro-elements in our bodies. Besides, the presence of metal elements is crucial for several functions like transmission of nerve impulses, oxygen flow, reaction between enzymes etc. Some medicines are therefore liaised with metal compounds to treat certain deficiencies or sickness. Metals like, iron, calcium, magnesium, potassium titanium, and aluminum are used commonly in medicine in the form of antacids.
Apart from this, most of the equipments and tools used are made from metals.
Machinery, Refractory and Automobiles
This is one of the most common use of metals. They are used extensively in manufacturing machines for industries, agriculture or farming and automobiles which include road vehicles, railways, airplanes, rockets etc. Here, the commonly used metals are iron, aluminum and steel.
Besides these, most of the utensils that is used in the kitchen are made from metals like steel, aluminum, and copper. Due to a high temperature withstanding nature metals are preferred the most.
Decorative products
Metals such as platinum, gold, and silver come under the category of precious metals and have high economical value. These metals are widely used in making jewellery sets or for some decorative piece.
Other Uses of Metals
Some other uses and applications of metals are, they play an important role in security as the metals are used in making locks, strong safe, doors etc. Apart from this, furnitures are made from metal these days. Metals also find their uses in the military where they are used to manufacturing weapons and ammunitions. Some metals are used in galvanizing to protect from rusting.
These are some popular uses of metal. To know more about metals, different types, properties of metals and more you can keep visiting BYJU’S or you can also download our app for interesting content and learning experience
What is the meaning of democracy
Answers
Answer:
a system of government by the whole population or all the eligible members of a state, typically through elected representatives. its like everyone has a choiceExplanation:
Answer:
Demorcay is:The form of government of the entire population or of all qualifying members of the state, generally by elected representatives:
Explanation:
What is meant by the term chemical bond? What subatomic particles(protons, neutrons, electrons) are most important in bonds?
Answers
Explanation:
Chemical Bonding refers to the formation of a chemical bond between two or more atoms, molecules, or ions to give rise to a chemical compound.
The subatomic particles that participate are electrons.
14. Energy (heat) is always transferred from ___ energy to ___ energy
A. low kinetic; high kinetic
B. high kinetic; high kinetic
C. high kinetic; low kinetic
D. low kinetic; low kinetic
Answers
Answer:i pretty sure it is high to low kinetic
Explanation: because heat or energy travels from hot heat to low heat which heat is the same as kinetic
How many moles of oxygen are required to use up 2 moles of propane?
Answers
Answer:
6.0 moles
Explanation:
The thing to remember about balanced chemical equations is that the stoichiometric coefficients added to each chemical species that takes part in the reaction are equivalent to moles.
I think its 10 moles, hope this helps.
Write the formulas for the following ionic compounds.
potassium iodide
magnesium phosphide
silver sulphide
iron(III) bromide
magnesium hydroxide
sodium sulphate
lead (IV) nitrate
ammonium carbonate
Answers
Answer:
1) KI
2) Mg3P2
3) Ag2S
4) FeBr3
5) Mg(OH)2
6) Na2SO4
7) Pb(NO3)4
8) (NH4)2CO3
are absolute temperature and kelvin temperature scale the same thing
Answers
Answer:
No they are not the same..
Explanation:
Absolute temperature is the temperature of an object on a scale where 0 is in the lowest possible energy state while the kelvin is a base unit of temperature.
Are humans more similar to trees or bacteria? How do you know?(1 point)
A
Humans are more similar to bacteria because trees cannot move around their environment.
B
Humans are more similar to trees because bacteria are too small to see.
C
Humans are not similar to trees or bacteria. Humans are a special species that is not related to any other species on Earth.
D
Humans are more similar to trees because all plants and animals are part of the same domain.
Answers
Answer:
Humans and trees are interdependent - we breathe in oxygen and breathe out carbon dioxide, while trees take in carbon dioxide and release oxygen.
Humans have about a thousand genes similar to those of bacteria, presumably because the genes are so vital that their DNA structure has remained much the same over millions of years of descent from a common ancestor.
Explanation: