Nitric acid, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water.
There are THREE different elements and a total of FIVE atoms in nitric acid.
The formula for nitric acid is HNO3. This means there is one atom of hydrogen, one atom of nitrogen, and three atoms of oxygen in one molecule of nitric acid.
So, Thus, your answer will be FIVE if you're counting the molecules but if you are counting the elements then it is THREE.
-Snooky
Can you identify a sample from a living organism by examining it under a microscope? Yes or No
The number of collisions between the particles of hydrogen and nitrogen is increased by using high
pressure and _______
What one word completes the sentence?
Answer:
temperature
Explanation:
increase in temperature increases the rate of reaction
Which of the following describes an animal that is contributing to the cycling of water in the hydrologic cycle?
OA. A monkey is cooled as sweat evaporates from its skin.
ОВ. A sea anemone lives in a habitat of seawater.
OC. A fish swims upstream in a flowing river.
OD.
A butterfly hides under tall grass during precipitation.
HELPP!!
Answer:
OA.
Explanation:
hydrologic cycle invloves evaporation which the wonkey is doing and when t hat condenses it is turned into water which we drink. So if you think very hard about it every time you drink a glass of water, you could be drinking monkey sweat :)
The number of energy levels is determined by the
a. groups
b. periods
c. valence electrons
d. atomic mass number
Answer:
The answer is C
Explanation:
I did look it up, the other kid just spams random bs for points, hope you didn't get it wrong because of him! :)
what are cells
1. the smallest things that can carry out life processes
2. parts of a molecule
3. parts of an atom
1.the smallest things that can carry out life proccess
What best describes a mixture
Answer:
In chemistry, a mixture is a material made up of two or more different substances which are not chemically combined. ... A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
Which two are isotopes of one another?
a. Atoms 1 & 2
b. Atoms 2 & 3
c. Atoms 1 & 3
d. Atoms 1 & 4
What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? The number of neutrons and electrons The number fo protons and neutrons The number of electrons only The number of protons and electrons
Answer:
The number of protons and neutrons.
Explanation:
Neutrons and Protons can't be removed from nucleus from chemical reactions because they are held together super strong and tight. However, nuclear reactions are strong enough to separate them.
hope this helps :)
Answer:
The number of protons and neutrons
Explanation:
Give the RNA complementary strands of the original strands listed below:
CGAACGTTA
GGCAAATTT
AUGGCAUUA
When do scientists believe matter formed
What particle revolves around the center of the atom? What is its Charge?
Answer:
Electrons, with a charge of -1.
Explanation:
The nucleus of the atom is composed of protons and neutrons.
The nucleus is where the bulk of the mass of an atom is found.
Electrons orbit the nucleus in various energy levels.
Protons have a charge of +1, neutrons have no charge, and electrons have a charge of -1.
How many grams are 3.01 x 10^23 molecules of methane (molar
mass = 16.04 g/mol)?
Answer:
8.02
Explanation:
A molecule with two atoms and no lone pairs around the central atom has a
shape.
A molecule with four atoms and no lone pairs around the central atom has a
shape.
A molecule that has two atoms and two lone pairs around the central atom has a
shape.
A molecule that has five atoms and no lone pairs around the central atom has a
shape.
DONE
Answer: linear
tetrahedral
bent
trigonal bipyramidal
Explanation:
When there are two atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 2 that means the hybridization will be sp and the electronic geometry of the molecule will be linear.
When there are four atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 4 that means the hybridization will be [tex]sp^3[/tex] and the electronic geometry of the molecule will be tetrahedral.
When there are two atoms around the central atom and two lone pair of electrons, the number of electron pairs will be 4 that means the hybridization will be [tex]sp^3[/tex] and the electronic geometry of the molecule will be bent.
When there are five atoms around the central atom and no lone pair of electrons, the number of electron pairs will be 5 that means the hybridization will be [tex]sp^3d[/tex] and the electronic geometry of the molecule will be trigonal bipyramidal.
What causes the differences in physical characteristics like hair color among people?
ООО
different versions of genes
O variations in DNA length
different numbers of chromosomes
variations in cell nucleus size
Answer:
The answer is a
Explanation:
The student who answers the riddle will get the prize ? underline pronoun
.
answer:
the student who answers the riddle will get the prize
explanation:
who is the pronouna pronoun is something that substitutes for a nounAnalyze the given diagram of the carbon cycle below.
An image of carbon cycle is shown. The sun, a cloud, two trees, one towards left and the other towards right, an animal, lake, and a factory are included. Arrow A points from the sun to the left tree. Arrow B points from the air above the clouds to the left tree. Arrow C points from the factory towards the air above the clouds. Arrow D points from the air to the lake labeled Carbonates in Water. Arrow E points from the label Dead Organism under the animal to label Fossils and Fossil Fuels. Arrow F points from the right tree to the air.
Part 1: Which process does arrow F represent?
Part 2: Explain how matter is conserved during the process.
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.
Use complete sentences to explain your answer. (10 points)
Answer:
Part 1:
Arrow F represents Cellular Respiration, showing how the tree produces carbon after it has finished the process of Cellular Respiration.
Part 2:
Matter is conserved in this image because it shows the process of Photosynthesis and cellular respiration. These are both examples of The Law of Conservation of Mass. During both of these processes, the mass of the reactants is the same as the mass of the products.
Part 3:
This process shows the carbon cycle by showing how carbon transfers to many different types of matter and back again. It shows the process of cellular respiration, which produces carbon using the products of photosynthesis, which uses the carbon produced by cellular respiration. This shows a cycle because each of them depends on the other.
According to VSEPR theory, what is the bond angle of CCl4?
a. 90
b. 109.5
c. 120
d. 180
true or false for this question?
Answer:
False, i think
Explanation:
CHEMISTRY
OXIDATION NUMBERS
please help me solve only 3 of those oxidation numbers
NO2
Cr2O72-
KCl
NH3
CaH2
SO42-
Na2O2
SiO2
CaCl2
Answer:
NO2=Nitrogen dioxide
KCL=potassium chloride
NH3=Ammonia
what conditions are required for establishing an equilibrium?
Answer:
1. By praying in the day or meditating
Being successful in your life will start with deciding to change in order to Learn. To make this happen, you need a good attitude and discipline. If you are already in the place where you are writing, it cannot be said because you probably like other things in your life very much. Make it a habit to start your day by praying or meditating. This will help you feel that you are more than who you think you are, thus showing that you can make it physical than you think you can and be in a different place in life than the one you are facing right now. Connect with yourself, be confident, and understand that you see better.
2.Be fully present when you are with your family
Family life is the area most associated with work-life balance. Having a good family life is like being at the top of your work-life balance. After all, your family will always be with you in your good and bad days. Friendships may end, but family relationships last. Start making changes in your life by making it in your family life. Make it a habit to spend quality time with them. Be more involved in their life, physically and spiritually.
3.Thank you to people you already know
Good connections are essential in business. It causes you to do more and better work. Good and strong connections in your personal life, on the other hand, allow you to develop yourself in different areas of life. This is another way to achieve balance. Developing your environment and making strong connections helps you learn from other people, broaden your perspective, and even broaden your vision of life. Communicate with the least person you know every day. It's always easier for you to start expanding your network with people you know. Tell him what you are busy with, ask him what he is busy with and if he needs help. Asking for help for yourself will also build trust. And it's okay to ask him if he knows other people who can help you
4.Do something creative
Although the left brain right brain dominance theory has been debunked, the world still cares more about activities attributed to the left brain, such as logic and measurement. Most businesses prefer analytical to creative thinking. And many people decide that creative thinking is impractical and discard it. Whatever your job is, you shouldn't give up your creative qualities. As an employee or employer, you have to be creative for more customers, more work and more marketing. Notice how your blood is pumping and how your adrenaline rises. Only right brain activities and creativity affect your lives. More importantly, the way to improve your vision and create new opportunities for your business and social life is through creativity. If your artist side is dominant, you should devote more time to activities such as painting, music, animation, and literature; maybe even consider starting a blog for yourself. This will help you to balance and add color to your life after a long and monotonous 'left-brain' weighted day.
5.30-minute walks
The first five items consisted of things you need to focus on every day for your emotional, relational, and personal success. But in order to develop and enjoy this success, you must also improve your Physical health. Make it a habit to move. Walk for half an hour a day, go to the gym, or even stretch your body every hour you sit down. Physical activities have many alternatives and benefits. Choose the most convenient and tasteful for you.
Explanation:İYİ GÜNLER
Birds' feet change slowly over time, depending on their habitat. Ptarmigans live in snowy areas and eat pine needles, twigs, and insects. Roadrunners live in deserts and plains and eat anything they can catch. Peregrine falcons live on high perches and use their talons for grasping their prey. Mallards live near water and swim and dive for food.
What is an inherited behavior or physical change that helps an organism survive and reproduce in its environment?
A. adaptation
B. variation
C. evolution
D. species
Answer:
A
Explanation:
hello, do you think you know the order of this?
Answer:
1. A
2. B
3. D
4. C
Explanation:
Just trust me. Good luck on your test! (I go to K12 as well.)
plz i need help
eggs:
ranch dressing
windex
Answer:
Egg is heterogeneous.
Ranch Dressing is heterogeneous
Windex is homogeneous.
What is the chemical formula of stannic nitride?
Answer:
Stannic nitride, Sn3N4
Explanation:
what is name of each shape
Answer:
I am so sorry I do not know this
Explanation:
When magnesium is added to hydrochloric acid, a gas is formed. Explain what happens in the reaction, how the gas is collected and how it could be tested to prove what it is.
Answer:
Explained below.
Explanation:
Formula when magnesium reacts with hydrochloric acid is given by;
Mg(s) + 2HCl(aq) = MgCl2(aq) + H2(g)
So, from the equation, we can see that the gas formed is hydrogen.
This hydrogen gas is collected by a method known as water displacement.
This gas can be tested for by holding a burning splint near to the top of the test container. The resulting effect should be a high pitched pop sound because the hydrogen gas will react with the oxygen gas in the air to result in a small explosion.
If I have 6.02 x 10^23 cars how many moles of cars do I have?
Answer:
1 mole of car
Explanation:
One mole of a substance is said to be equal to 6.02 × 10^23 atoms, which is Avagadro's number or constant. In other words, 1mole of every substance = 6.02 × 10^23 atoms. Hence, the number of moles in a substance can be calculated by dividing the number of atoms contained in that substance (nA) by 6.02 × 10^23.
According to this question, If I have 6.02 x 10^23 cars, this means that I have:
6.02 x 10^23 cars ÷ 6.02 x 10^23
= 6.02 ÷ 6.02 × 10^(23-23)
= 1 × 1^0
= 1mole of car
The splitting apart of an atom's nucleus is called
Fizzing
Fission
Fusion
Atomic
Answer:
it is option B
(Fission)
hope it helps
Give an example of a system that has energy.
Answer:
Aerobic Energy System
Explanation:
Answer:
Digestive system. It contains chemical energy. The digestive system breaks down food. Food contains chemical energy. To break down the food, the digestive system contains enzymes. Enzymes have kinetic energy to move and break down the food. They are biological catalysts. They transfer to the thermal energy store since in order to break down food at the fastest rate, they need to be at an optimum temperature.
I'm not sure if it's correct, but I'll provide some energy stores to give you inspiration:
Kinetic energy
Chemical energy
Nuclear energy
Gravitational potential energy
Elastic potential energy
Thermal energy
I
A sample of gas has a volume of 606 mL at 35 °C. What temperature is necessary for the
gas to have a volume of 854 ml?
A 49 K
B. 707 K
C. 219 K
D. 434 K
Answer: D. 434 K
Explanation:
To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]
where,
[tex]V_1\text{ and }T_1[/tex] are the initial volume and temperature of the gas.
[tex]V_2\text{ and }T_2[/tex] are the final volume and temperature of the gas.
We are given:
[tex]V_1=606ml\\T_1=35^oC=(35+273)K=308K\\V_2=854ml\\T_2=?[/tex]
Putting values in above equation, we get:
[tex]\frac{606}{308}=\frac{854}{T_2}\\\\T_2=434K[/tex]
Thus temperature necessary for the gas to have a volume of 854 ml is 434 K