Answer:
Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron (III) oxide, which we see as rust. Here is the word equation for the reaction: iron + water + oxygen → hydrated iron (III) oxide
In this reaction, zinc atoms each will lose two electrons (oxidation) and become Zn 2+ ions. The two electrons that are released by zinc will be gained by the Cu 2+ ions (reduction). The Cu2+ ions become Cu atoms. Total equation: Zn (s) + CuSO 4 (aq) --> Cu (s) + ZnSO 4 (aq)
Explanation:
What is the function of a vacuole?
A) Thick solution that fits all cells
B) Stores food, water, and waster
C) transports proteins
D) helps with cell division
Answer:
B stores food, water and waster
R indicates round seeds that are dominant over the wrinkled variety, represented by r. For each numbered individual in the pedigree give the genotype and phenotype.
Answer:what grade this is
Explanation:
12,341 nanoseconds is how many seconds?
Answer:
1.2341e-5 seconds i.dk how to convert it from scientific notation lol
Explanation:
- Zombie
what is exothermic reaction?
Answer:
Exothermic reaction is a reaction in which heat is evolved.
Ex-Salt water
Answer:
[tex]\huge\red{happy} \green{birthday} \pink{dear} \orange{lakshu}[/tex]
What does the scientific method process allow for?
It allows to test a inference, and analyze data to determine if the inference of the observation was correct.
Is it permissible to taste substances in the lab?
please please helpppp
Answer: I think its hydrogen, good luck
Explanation:
Answer:
Last diagram
Explanation:
Here, only individual atoms of argon are there in this gas
Metalloids are malleable, but are not ductile.
O True
OFalse
Answer:
False
Explanation:
Metalloids are brittle when compared to metals. Most metalloids are neither malleable nor ductile.
Hope this helps.
difference between medicinal and bio chemistrsy
Answer:
Biochemistry focuses on the studies of biological matter. ... Medical biochemistry seeks to advance the understanding of chemical structures and processes that constitute health and disease, and underlie transformations between these two states.
If electromagnetic radiation has a frequency of 2.0 x 10^15 s^-1 what is the radiation’s energy?
Answer:
1.3 x 10^-15J
Explanation:
A ___________
is a process that occurs when
one or more substances are changed into one or more new
substances. For example, when zinc and sulfur are mixed
together with the addition of energy in the form of heat, zinc
sulfide (ZnS) is produced.
Answer:
Reaction??
Explanation:
state three properties of light
Answer:
The primary properties of visible light are intensity, propagation-direction, frequency or wavelength spectrum and polarization.
Explanation:
Create a new name for Jupiter then explain its meaning.
Answer:
rudo
Explanation:
rudo means In the Shona language of souther Africa, this simple and wearable boys' name means love.
If I have 2.4g of magnesium, how many g of oxygen(O2 ) will I need to react completely with the magnesium? 2Mg +O2 → MgO
Explanation:
just trying....hope that helps
1.6 grams of oxygen will react with 2.4 grams of magnesium.
Explanation:
Given:
2.4 grams of magnesium.
The reaction between magnesium and oxygen:
[tex]2Mg+O_2\rightarrow 2MgO[/tex]
To find:
The mass of oxygen required to react with 2.4 grams of magnesium.
Solution:
The mass of magnesium = 2.4 g
Moles of magnesium =[tex]\frac{2.4 g}{24.305 g/mol}=0.0987 mol[/tex]
[tex]2Mg+O_2\rightarrow 2MgO[/tex]
According to the reaction, 2 moles of magnesium reacts with 1 mole of oxygen, then 0.0987 moles of magnesium will react with:
[tex]=\frac{1}{2}\times 0.0987 mol=0.04935\text{mol }O_2[/tex]
Moles of oxygen required = 0.04935 mol
The mass of 0.04935 moles of oxygen :
[tex]=0.04935\times 31.999 g/mol=1.579 g\approx 1.6 g[/tex]
1.6 grams of oxygen will react with 2.4 grams of magnesium.
Learn more about the unitary method and moles here:
brainly.com/question/2499283?referrer=searchResults
brainly.com/question/20703532
do all types of energy have the same amount of energy
Answer:
Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible. Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth.
Explanation:
Answer:No, for example electricity doesn't work like physical energy
Explanation:
Calculate the volume of an object with dimensions measuring: 3.0cm x 4.0cm x 1.0cm
Answer:
12cm^3
Explanation:
Just multiply each of the given dimension.
= 3.0 × 4.0 × 1.0
= 3 × 4 × 1
= 12
Answer:
12cm cubed
Just multiply 3, 4, and 1
35. A line graph uses_ on the x-axis
a. categories
b. time
C. dependent variable
d. control group
PLZ I NEED THIS ASAP!! ILL GIVE YOU BRAINLIST!!!
Answer:
6) gary suffering from slimotosis
7) duration of rubbing seaweed/drinking dr. kelp
8) whether slimotosis gets cured or not
9) rubbing seaweed and drinking dr. kelp cures slimotosis
Explanation:
what was the order
of the first periodic table based
on?
Answer:
British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses. He found that every eight elements had similar properties and called this the law of octaves. He arranged the elements in eight groups but left no gaps for undiscovered elements.
What is the tool used for measuring volume?
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
True or false?
1. Cells carry on the processes that keep organism live?
True or false?
2. The digestive system is in the levels of organization under organ?
Critical Th
Use this phof
following qu
Lesson Beviel
Vocabulary
Circle the term that best completes each of the
following sentences.
1 A(n) hypothesis/observation is tested in
an experiment.
94+ yell.52
2 In an experiment, the independent/dependent
variable is the one that scientists manipulate
on purpose.
Answer:
1) hypothesis
2. independent .
hypothesis is a guess that is tested by an experiment
independent variable is manipulated by the experimenter
Name 2 different types of microorganisms that live or on your body.
Answer:
Your body is chock full of microorganisms, including bacteria, fungi, archaea and viruses. Altogether, there are ten times more microbes in your body than there are human cells.
Explanation:
Answer:
Germs and bacteria. They can be found on the surface of our skin.
There are three stable forms of neon: neon-20, neon-21, and neon-22. Which statement is true?
Answer:
three stable isotopes
Neon has three stable isotopes: 20Ne (90.48%), 21Ne (0.27%) and 22Ne (9.25%). Ne and 22Ne are partly primordial and partly nucleogenic (i.e. made by nuclear reactions of other nuclides with neutrons or other particles in the environment) and their variations in natural abundance are well understood.
The statement that is true is the charge of all isotopes are same. The correct option is D.
What are isotopes?Isotopes are members of an element family that have the same number of protons but differ in terms of neutrons.
The atomic number of an element on the Periodic Table is determined by the number of protons in its nucleus.
There are three isotopes of neon. Since there is no significant global production of these isotopes, the more plentiful 20Ne and 22Ne are essentially all primordial.
Isotopes can form naturally through radioactive decay of a nucleus or unnaturally by bombarding a stable nucleus with charged particles in a nuclear reactor using accelerators or neutrons.
Thus, the correct option is D as they all have same charge.
For more details regarding isotopes, visit:
https://brainly.com/question/11680817
#SPJ2
Your question seems incomplete, the missing options are:
- the atomic mass of the three isotopes is the same
-the three isotopes are all radioactive
-the three isotopes are equally abundant in nature
-the charge of all isotopes is the same
8 points
A tennis ball is thrown straight up with an initial velocity of 5 m/s (vi = 5
m/s). At the highest position, the velocity is O m/s (vf = 0 m/s). How high
does the ball rise? *
O 1m
1.3m
5m
25m
Answer:
1.3 meters
Explanation: use newton third law equation.
Is a mixture of stones?
homogeneous or heterogeneous
Answer:
Heterogeneous mixture because it is not soluble and in non uniform texture.
What is the volume of a substance that has a density of 13.6 g/cm and a mass of 3.0 g?
Answer:
[tex]\boxed {\boxed {\sf v \approx 0.22 \ cm^3}}[/tex]
Explanation:
We are asked to find the volume of a substance.
We are given the density and the mass. The density of a substance is its mass per unit volume. The formula for calculating density is:
[tex]\rho= \frac{m}{v}[/tex]
We know the density of the substance is 13.6 grams per cubic centimeter and the mass is 3.0 grams.
ρ= 13.6 g/cm³m= 3.0 gSubstitute these values into the formula.
[tex]13.6 \ g/cm^3= \frac{3.0 \ g }{v}[/tex]
We are solving for the volume, so we must isolate the variable v. First, cross multiply. Multiply the first numerator by the second denominator, then multiply the first denominator by the second numerator.
[tex]\frac{13.6 \ g/cm^3}{1}= \frac{3.0 \ g }{v}[/tex]
[tex]13.6 \ g/cm^3 *v =3.0 \ g *1[/tex]
Multiply on the right side of the equation.
[tex]13.6 \ g/cm^3 *v =3.0 \ g[/tex]
The variable is being multiplied by 13.6 grams per cubic centimeters. The inverse operation of multiplication is division, so we divide both sides of the equation by 13.6 g/cm².
[tex]\frac {13.6 \ g/cm^3 *v}{13.6 \ g/cm^3} =\frac{3.0 \ g }{13.6 \ g/cm^3}[/tex]
[tex]v =\frac{3.0 \ g }{13.6 \ g/cm^3}[/tex]
The units of grams cancel.
[tex]v =\frac{3.0 }{13.6 \ cm^3}[/tex]
[tex]v= 0.2205882353 \ cm^3[/tex]
The original measurement of density has 3 significant figures and the measurement of mass has 2. Our answer must have the least number of sig figs, which is 2. For the number we found, that is the hundredth place. The 0 in the thousandth place tells us to leave the 2 in the hundredth place.
[tex]v \approx 0.22 \ cm^3[/tex]
The volume of the substance is approximately 0.22 cubic centimeters.
How many atoms is in one mole of glucose?
There are 6 atoms in one mole of gulcose.
How do i calculate moles to atoms/atoms to moles?
Answer:
To convert from moles to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).
Explanation:
When sugar is heated on a hot plate, it turns into a liquid. When the liquid sugar is
cooled, a hard-crystalline substance is formed. This model BEST demonstrates the
formation of
photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy.
