Answer:
gctcuv
Explanation:
jygciutvguv
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Can someone please tell me the answer on this. First person to answer will most definitely be marked brainliest so please just tell me the answer. The deadline is in 5 MINUTES!!
particles, high, low, oxygen, waste, carbondioxide, fast.
All alkalis are bases but not all bases are alkalis. True or False?
Answer:
A substance that neutralizes an acid is generally called a base and the basic substances that are soluble in water and alkali and the properties of alkalis are due to these hydroxide ions(OH−). ... - Thus, conclusively it can be said that all alkalis are bases but all bases are not alkali.
Answer:
This is false
Explanation:
it is actually the opposite, all bases don't dissolve in water, but alkali is a base that does dissolve in water. So, alkalis are bases, but not all bases are alkalis
Pinky, message in one of my answers that doesn't have an comment on pls.. i wish i can tlk to u.. but this new system in brainly.. oof
Which of the three objects has the greatest density? Why? (GOLD BARS/GOLD COINS/GOLD CHAIN)
Answer:
They all have the same density
Explanation:
Density is an intensive physical property, meaning that as long as the chemical formula is the same, that specific intensive physical property will be the same. For example. One kilogram of feathers has the same mass as one kilogram of bricks. Why? They both have a mass of one kilogram.
It's the same thing here. Since all the objects are (assumed to be) made up of 100% gold, they would all have the same density regardless of the mass. For extra points, say the density of each object is [tex]19 \frac{g}{cm^3}[/tex].
Answerthey all have the same density Explanation:
a liquid can be described as a form of matter that
Answer:
That has no fixed shape but it have fixed volume.
what is the process that causes the seafloor to rise during a subduction zone earthquake?
Answer:Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other. Seafloor spreading and other tectonic activity processes are the result of mantle convection. ... The less-dense material rises, often forming a mountain or elevated area of the seafloor.
Explanation:
Brainliest pls
bnmmmmmmmxsdcwwegvwwfdvsdv
Answer:
bnmmmmmmmxsdcwwegvwwfdvsdv
what happens when potassium reacts with fluorine to produce potassium fluoride
Answer:
In order to obtain eight valence electrons (an octet), the potassium atom will transfer its single valence electron to the fluorine atom.
List 5 physical properties of matter. How many atoms of each type of element in C6H12O6?
Help please 20 points and brainliest
Answer:
For homogeneous:
Filteration, vaporization, and a reverse chemical reaction
Explanation:
1) precipitation/crystallization reactions - if one of the components can form a solid salt when the solution undergoes several factors (concentration change, temperature change, etc); separation can be done either by filtration, centrifugation, or simple decantation.
(2) chromatography - separation can be based on the mobility of the phases (liquid chromatography, gas chromatography, ion-exchange, etc.)
(3) solvent extraction - if the components are both liquid, separation based on their relative solubilities
(4) distillation - separation based on different boiling points.
(5) magnetic separation - if one of the components have magnetic properties.
(6) electrophoresis - separation of organic molecules based on the type of gel used
heterogeneous:
Main methods of separation of heterogeneous mixtures
- Magnetic separation
- Sublimation
- Decantation
Liquid-solid mixture
Liquid-liquid mixture
- Filtration
- Centrifugation
Themes of interest
HELP PLZZZZZZZ ASAP
Which best describe the kinetic energy of the particles in solids, liquids, and gases? Check all that apply.
Particles in solids have low kinetic energy.
Particles in solids have high kinetic energy.
Particles in liquids have moderate kinetic energy.
Particles in liquids have low kinetic energy.
Particles in gases have high kinetic energy.
The molar mass of sulfur S is 32.06 g/mol
Calculate the mass in grams of a sample of S containing 2.01x10^24 atoms
Help Please<3
Since we are starting from the number of atoms of Sulfur, we need to know two sets of formulas:
mass = moles × molar mass moles = atoms ÷ Avogadro's Number
⇒ mass = (atoms ÷ Avogadro's Number) × molar mass
mass = [(2.01 × 10²⁴ atoms) ÷ (6.022 × 10²³ atoms/mole)] × (32.06 g/mol)
= 107.01 g
the mass of a sample of S containing 2.01×10²⁴ atoms is 107.01 g.The molar mass of sulfur S is 32.06 g/mol, then the mass in grams of a sample of S containing 2.01x10^24 atoms is 107.01 g
what is molar mass ?The molar mass can be defined as the weight of one sample mole, by Multiplying the subscript means the number of atoms times that element’s atomic mass and add the masses of all the elements in the molecule to obtain the molecular mass.
Molar mass is expressed in either gram ( g) or kilograms (kg).
Mass = moles × molar mass
moles = atoms ÷ Avogadro's Number
⇒ mass = (atoms ÷ Avogadro's Number) × molar mass
mass = [(2.01 × 10²⁴ atoms) ÷ (6.022 × 10²³ atoms/mole)] × (32.06 g/mol)
= 107.01 g
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before making a covalent bond, where do the atom's electrons spend most of their time?
Answer:
Before bonding, the atom's electrons spend most of their time around the nuclei of each atom. Once bonded, the electrons spend most of their time between the two nuclei
household substances that contains acid
Answer:
milk, lemon juice, toothpaste and baking soda
what molecule would be most directly affected if 2 co2 molecules could be fixed at the same time?
. Which situation will result in lower average kinetic energy? a) 100 people go swimming into a NYC public pool b) 100 people go swimming at Coney Island beach
Answer:
I think it would be the beach because all the waves and such but in a pool with more people there is a tight space so they cant move around as much and as freely. But this could be a trickster question but I would choose the beach.
Hope this is right :)
a caterpillar travels across the length of a 3.00 m porch in 10.5 minutes. what is the average velocity of the caterpillar in m/s?
Answer:
3.5 meters per second
Explanation:
10.5 divided by 3 equals 3.5
convert 230.000 000 000 mi into scientific notation
Answer:2.3×10^11
Explanation:since scientific notation is as a×10^k with 0<a<=9
All matter is made up of atoms and molecules that are what?
what would happen to dietary protein if hcl were not being produced in sufficient quantities?
Dietary protein will not be digested if Hcl were not being produced in sufficient quantities.
In the stomach, there are some glands found on the stomach lining that helps to release hydrochloric acid (HCl). Their major role is to dissolve food and produce an acidic medium.
The acidic media promotes and improves the conversion of pepsinogen to pepsin. Pepsin acts as an enzyme that supports protein digestion.
Protein digestion requires a pH of around 1.8 which can be achieved by the secretion of HCl.
As a result, if HCI is not released in the stomach in sufficient quantities, pepsin will not be activated and it would have a detrimental impact on protein digestion.
Therefore, we can conclude that dietary protein will not be digested if Hcl were not being produced in sufficient quantities.
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I will brainless who can answer this all pleaseeeeej
Answer:
1. False
2. True
3. False
4. False
5. False
6. True
7. True
8. not sure
9. True
10. False
Explanation:
A dump truck, a sports car, and a bicycle are traveling at the same velocity. Which is true?
A The bicycle has the least kinetic energy.
B More information is needed to compare their kinetic energy.
C They all have the same kinetic energy.
D The sports car has the most kinetic energy.
Answer:
a
Explanation:
The object with greater mass is having greater kinetic energy. Here, all the objects has the same velocity therefore, the bicycle is having least kinetic energy.
What is kinetic energy?Kinetic energy is a form of energy generated by virtue of the motion of the object. The kinetic energy is related to the mass and velocity of the body by the expression below:
KE = 1/2 mv².
As per this equation, kinetic energy increases with an increase in mass or/ and velocity. The substance with greater mass is possessing the greater kinetic energy.
A dump truck has greater mass than a car and bicycle. Thus, at the same velocity for all, the greater kinetic energy is for the truck and the least kinetic energy is for the bicycle having the least mass here. Thus, option A is true.
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Pls helpppp me if you cannn
Answer:
Solution A : calcium hydroxide
Solid B : calcium oxide
Gas C : Hydrogen gas
Explanation:
i) When metals react with water they form hydroxides thus calcium hydroxide
ii) When metals eact with oxygen they form oxides.
iii) Wehn metals react with hydrochloric acid they form a salt and a gas hydrogen.
HOPE THIS HELPED
The opposite of an endothermic reaction is a(n) reaction.
Answer:
The opposite of an endothermic process is an exothermic process, one that releases or "gives out" energy, usually in the form of heat and sometimes as electrical energy.
Explanation:
Hope this helps you. Have a nice day. Please mark as brainliest. It helps a lot. ^_^
the symbol for the element in period 2 group 13 is
Answer:
Boron
Explanation:
Using the periodic table we can see that Period 2 represents the second row. Group 13 indicates the 13th column.
Today, the atom is defined as the_____ particle that can still be considered an____.
Answer:
Today, the atom is defined as the smallest particle that can be considered an element.
Explanation:
Answer:
Today,the atom is defined as the smallest particle that can still be considered an element.
How many Joules does it take to raise 1 g of water 2°C
Answer:
Quantitative experiments show that 4.18 Joules of heat energy are required to raise the temperature of 1g of water by 1°C. Thus, a liter (1000g) of water that increased from 24 to 25°C has absorbed 4.18 J/g°C x 1000g x 1°C or 4180 Joules of energy.
546.8910 - 32.9 = ? Remember to use the appropriate significant figures.
513.991
Explanation:
546.8910
- 32.9
-----------
513.991
-----------
did this help ??
What is the MAIN reason the author includes the section "Retirement? Not Really"?
Question 7 options:
to highlight Lehmann's lifelong commitment to scientific research
to emphasize Lehmann's role in advancing the position of women in science
to describe how Lehmann's research evolved over time
to show why Lehmann's work is not as well known as her male counterparts
Answer:
to highlight Lehmann's lifelong commitment to scientific research
Explanation:
Just took the test. I was correct.
The main reason the author includes the section "Retirement" to highlight Lehmann's lifelong commitment to scientific research. Thus, option A is correct.
What is scientific research?
An scientific research has been defined as the process that has been designed to diagnose the hypothesis which has the portion of the scientific method or procedure.
Scientific experiment has been done by the testing the particular medicine on an animal and by the observation and the impact of the medicine on the animal as well as the reaction of the animal.
There are mainly three types of the scientific experiments and these are experiment which has been consist of the major level of the scientific experimentation. The second type has been Quasi- experimental and third type is non- experimental study or reasearch.
Therefore, The main reason the author includes the section "Retirement" to highlight Lehmann's lifelong commitment to scientific research. Thus, option A is correct.
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carbon dioxide + Calcium Carbonate =?
Answer:
calcium carbonate deteriorates, delivering carbon dioxide gas and leaving behind calcium oxide a white solid. Over the long haul, this responds with carbon dioxide noticeable all around to frame gems of calcium carbonate, which lock the sand grains together to shape a hard rock-like material
Explanation:
Answer:
calium bicarbonate
Explanation:
