Answers
Answer:
See answer below
Explanation:
In this case, you just need to use any acid you want (Like HCl, or H₂SO₄) to do this exercise.
You are given a sample of what you have to do which is:
Acid + metal ------> Salt + hydrogen
As you can see, an acid like the ones I wrote above, have hydrogen atoms, so you should put the hydrogen there. As for the part of salt, you just need to draw the corresponding salt that is formed when the acid reacts with the metal, and write it's name.
Let's do all three equations for you to a better understanding. For all the given examples, I will use HCl as acid, and i will explain one reaction cause the other two reactions happens the same thing, only with a different metal.
1. 2HCl + Zn ------> ZnCl₂ + H₂
As you can see, we just have a displacement reaction where the metal displaces the position of the hydrogen to form the salt and the hydrogen leaves the molecule as a gaseous molecule. Written in words it would be:
Hydrochloric acid + Zinc ----> Zinc chloride + hydrogen
2. 2HCl + Pb -------> PbCl₂ + H₂
Hydrochloric acid + lead ------> Lead (II) chloride + hydrogen
3. 2HCl + Fe -------> FeCl₂ + H₂
Hydrochloric acid + iron ------> Iron (II) chloride + hydrogen
Hope this helps
Related Questions
How many atoms are in 4.25 g of Ag?
Group of answer choices
2.76 x 10^26 atoms
2.37 x 10^23 atoms
2.76 x 10^23 atoms
2.37 x 10^22 atoms
Answers
well i just had a major PTSD attack how is everyone i need to think about something else
Answers
Answer:
Oh so so sorry about that. and thanks for caring for us. anyway we are good wbu
Explanation:
im good. i just ate applesauce lol :)
determine the kinetic energy of an 833.0 kg roller coaster car moving at a speed of 20.0 m/s
Answers
Answer:
166,600J
Explanation:
Kinetic energy (K.E), which is the energy due to motion of a body, can be calculated by using the formula;
K.E = 1/2 × m × v²
Where;
K.E = kinetic energy (joules)
m = mass of body (kg)
v = speed or velocity (m/s)
According to this question, the mass of the roller coaster is 833.0 kg while its velocity/speed is 20.0m/s.
K.E = 1/2 × 833 × 20²
K.E = 1/2 × 833 × 400
K.E = 1/2 × 333200
K.E = 166,600
Therefore, the kinetic energy of the roller coaster car is 166,600J.
Balance the folowing equation.
S + 02
ws
SO:
Answers
Answer:
s+o2=so2
Explanation:
i hope it will help u
hey y’all, I’m growing a plant for science class but I need some questions about the plant, can someone please give me atleast 3 questions to answer for it.. can you give me atleast one tricky one
Hurry pls <3
Answers
Answer:
What type of plant
Where is it mainly found
What are some facts about it?
6. Which change to a population would cause
increased competition among
its members?
SC.7.L.17.3
ES
an increase in population size
B a decrease in population size
© an increase in predation on the
population
D an increase of disease in the population
Answers
Answer:
B
Explanation:
Because I said so
A 5.0 balloon containing nitrogen gas is cooled from 25 degrees to 5°C. What is the final volume of the balloon?
Answers
Answer:
5.4
Explanation:
V1=5.0
T1=25+ 273=298
V2= z(unknown)
T2=5+273=278
V1/T1 =V2/T2
V2=V1T2/T1
=5*298/278
=5.4
1.
what can noble gases be used for?
2.
what is a vertical column called in the periodic table
3.
what is the horizontal column in the periodic table
Answers
2. Groups
3. Rows
Answer:
1. They are mostly used to protect materials and prevent chemical reactions.
2.These are Groups
3. I guess it is Rows
Which of Earth's five spheres is involved when a volcano erupts?
Answers
Answer:
[;
Explanation:
Mudflows (geosphere) and flooding may occur downstream from volcanoes and may inundate streamside communities (biosphere).
What is it about the structure of magnesium atoms that makes them react more slowly than sodium atoms?
Answers
Answer:
A reactive metal has the ability to easily lose an electron and acquire a positive charge. Sodium easily loses electrons and acquires a positive charge. Sodium easily lose electrons than magnesium and get oxidized to easily.
Explanation:
Why can't krypton and xenon separate during the separation of gases in the air?
Answers
Answer:
The remaining gas is a mixture of argon, neon, krypton, and xenon. Because these elements are chemically very unreactive, chemical means cannot be used to separate them.
Explanation:
Answer:
They're in Group 0 as they have full outer shells meaning they are chemically unreactive as they already have full outer shells meaning they don't want to lose or gain any electrons. Thus, they can't separate during the separation of gases in the air.
1. Which type of matter has the molecules packed closer together?
a. Solid
b. Liquid
c. Gas
d. Plasma
2. Matter is made up of __________.
a. Molecules
b. Particles
c. Atom
d. All of them
3. Particles with more energy move ________ than particles with less
energy.
a. Slower and closer together
b. Slower and farther apart
c. Faster and farther apart
d. Faster and closer together
4. Which best describes the particles in a liquid?
a. More freely moving than a gas
b. More freely moving than a
solid
c. Less freely moving than a
solid
d. Completely unmoving
5. Which of the following statements describes a mass?
a. The force of attraction between two bodies.
b. The force of gravity exerts on a body of mass.
c. The amount of matter in an object.
d. The weight of the object from place to place.
Answers
Answer:
1. Which type of matter has the molecules packed closer together?
a. Solid
2. Matter is made up of _________.
d. All of them
3. Particles with more energy move ________ than particles with less
energy.
c. Faster and farther apart
4. Which best describes the particles in a liquid?
b. More freely moving than a solid
5. Which of the following statements describes a mass?
c. The amount of matter in an object.
1. Which of the following statements is true about seeds?
a. Every plant produces seeds.
c. All seeds are good to eat.
b. All fruits contain many of seeds. d. all seeds has young plant, stored food and a seed coat.
2. Flowers cannot usually produce seeds unless
a. they are visited by insects.
c. they produce nectar.
b. they are on plants growing in good soil. d. the right pollen is placed on their stigmas.
3. Fertilization take place before a seed develops. Which statement describes when fertilization
occurs?
a pollen grain falls on a pistil
c. sperm in a pollen joins with an egg cell in an ovule
b. a pollen tube enters an ovary
d. an ovary becomes a fruit
4. Which of the following is NOT a factor needed by plants?
a. fire
b. nutrients
Please pasagot po ng tanong ko please
c. sunlight
d. water
5. Which is the reproduction in plants where the male and female parts of the flower are involved?
a. asexual
b. sexual
c. rhizome
d. pollination
Answers
Answer:
1 ans: d. all seeds has young plant, stored food and a seed coat.
2 ans: d. the right pollen is placed on their stigmas
3 ans: a. pollen grain falls on a pistil
4 ans: a. fire
5 ans: b. sexual
Hope it helps,
Please mark me as brainliest
Thank you...
5. Name three different waves you use on a daily basis, Explain how you use them
Answers
Answer:
We use radio waves for communicating or a for television and radio. We use Heat waves to heat things. We uses heat waves everyday for heat up food in the microwave and drying clothing when using the dryer or when drying our hair with a hairdryer. Infrared light is used by electrical heaters, cookers for cooking food, and by infrared cameras which detect people in the dark.
Hopefully, it helps :) Give me brainiest please!
Balance the equation Ag2O ->Ag + O2
Answers
Answer:
For balancing this equation
we need to put
Ag2O. = 2
Ag = 4
O2 = 1
Hope it will help
The balanced chemical equation of decomposition of silver oxide is 2 Ag₂O -> 4 Ag + O₂.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
Learn more about chemical equation,here:
https://brainly.com/question/28294176
#SPJ5
3. How many grams of water will be produced from 15.0 grams of Methane? *
CH4 +2 02 → CO2 + 2H2O
Answers
According to molar weights :
16 gm CH4 + 64 gm O2 = 44 gm CO2 + 36 gm H2O
Since 16 gm CH4 produce 36 gm H2O
Hence 2.5 gmCH4 produce 36×2.5/16 gm H2O
= 5.265 gm of H2O
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2
1
Related Questions (More Answers Below)
Electrons can occur only in specific
Answers
Answer: Electrons have wavelike motion and are restricted to certain energy states associated with specific wavelengths.
An example of a binary compound is
a.
potassium chloride
b.
ammonium chloride
potassium chlorate
ammonium chlorate
Answers
Answer:
a. KCl
Explanation:
a. KCl - made of 2 elements
b. NH4Cl
c. KClO3
d. NH4ClO3
How many moles of potassium are needed to react completely with 7.50 mol of chromium (III) oxide? Show work.
Answers
Answer:
45 mol
Explanation:
First you need to balance the equation:
6K + Cr2O3 = 3K2O + 2Cr
the proportion of the coeficients of potassium and chromium oxide is 6 to 1 so we need to multiply 7.5 by 6 to get 45.
Elaborate on the nuclear model of the atom. The nuclear model describes the atom as protons and neutrons distributed throughout a sea of electrons. The nuclear model describes the atom as electrons uniformly scattered in a positive cloud of protons. Eliminate The nuclear model describes the atom as a small, negative center enveloped by a cloud of positive particles. The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
Answers
Answer:
D.) The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
Answer
The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
b Explain what would have happened if Jilly
had thrown the object with more force.
Answers
Answer:
force had thrown the object with more
Answer:
If an object is in motion and more force is applied to it, the object will begin moving faster
Explanation:
don't have any (sorry:[ )
What’s the answer for this question
Answers
Answer:
i think it's B
Explanation:
R4te me for 10 points and be honest with me PLEASE
Answers
Answer:
id give you and 8 or 9 but you are really pretty tho
Explanation:
An atom that has lost one or more electrons is a(n) _____.
Not Cation
Answers
Answer:
ion
Explanation:
that is the definition according to g o o g l e:
"an atom or molecule with a net electric charge due to the loss or gain of one or more electrons."
Answer:
An ION
Explanation:
Because a positive ion is called a CATION and a negative ion is called an ANION (Please brainlist me)
What is the main process by which water moves from land to the atmosphere?
Answers
Answer:
isn't that evaporation if not you can just delete my answer-
Explanation:
what’s the difference between 2o and o(subscript 2)?
Answers
Answer:
2O is an atom while O2 Is a molecule
The empirical formulae of a compound is CH2O. The relative formula mass for the molecular formula is 180. What is the molecular formula?
Answers
Answer:
ch20 is the empirical formula for glucose , c6h1206 is the molecular formula .
I need help in this questions
Answers
Answer:
just use calculator mannn
When a gas is heated, the gas particles have more kinetic energy. Complete the following sentence: This means they move about more and have more ______ with the sides of the container. This increases the pressure.
Answers
Answer:
Contact
Explanation:
As the speed of the particles increases, they move around more, which means they hit the sides of the container more.
A prokaryotic cell does not have
А
a cell membrane.
B
genetic material.
C
a nucleus.
D
flagella.
Answers
Answer:
D
Explanation: