Answer:
Treatment depends on severity
For mild to moderate reactions, treatment involves removing the stinger, washing the area with soap and water, and applying cold compresses or ice. Creams to the affected area can help reduce discomfort. Severe reactions may need adrenaline.
Chemical bond meant by.... what?
Answer:
Chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world.
Answer:
A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
Expand the number 7.7046 X 10%
Answer:
0.77046
Explanation:
Could someone plz help me? :(
Answer:
I think it's B " Constraints are more important than criteria ".
a molecule of an element is called what?
Answer:
a molecule of an element is called atomicity
.. When water boils, you can see bubbles rising to the surface of
the water. Of what are these bubbles made?
a. air
b. hydrogen and oxygen gas
c. oxygen gas
d. water vapor
e. carbon dioxide gas
Answer:
Explanation:
It's water vapor. There is enough heat present to get the water to boil but not enough to break it into its chemical components (oxygen and hydrogen), so the answer is D.
What are the two key ingredeints that help science move forward?
Answer:
science needs both ideas the hypothesis and facts the quantitative results to move forward
Explanation:
the two primary features of a scientific hypothesis are falsifiability and testability which are reflected in an If…then statement summarizing the idea and in the ability to be supported or refuted through observation and experimentation
How many parents are needed to produce a baby tiger?
Answer:
Only 2
Explanation:
which type of molecule contains two atoms bonded together
A) simple molecule
B) crystal
C) polymer
D) complex molecule
simple molecules contain two atom bonded together
Answer: Simple Molecule
Explanation: Ambigous question. What is the scientific definition of "simple molecule?" More by process of elimination than actual difinition, this is a simple molecule. It takes a minum of two atoms to make a molecule (by definition). A crystal is a collection of molecules, a polymer is a chain of molecules, and a complex molecule is, er . ., complex. The only reasonable, and best, answer is "simple molecule."
Conversion of gaseous nitrogen to liquid nitrogen is an
example of a chemical change.
TRUE
FALSE
Answer:
true
Explanation:
you can't change it back, it's chemically changed
Each of the following can be used to make observations, except: *
A calculator
A digital scale
Your sense of smell
A microscope
Answer:
Calculator
Explanation:
A calculator is used to make, well calculations
You can use a scale to get information about the weight of an object, and you can observe how weight changes in relation to size etc.
For obvious reasons, you can observe different scents
Again a microscope is an observational tool
Which statement is true about a triple beam balance and spring scale?(1 point)
A.Both a triple beam balance and a spring scale are used to measure the mass of an object.
B.Both a triple beam balance and a spring scale are used to measure the mass of an object.
C.A triple beam balance is used to measure the weight of an object, and a spring scale is used to measure the mass of an object.
D.A triple beam balance is used to measure the weight of an object, and a spring scale is used to measure the mass of an object.
Answer:
D. A triple beam balance is used to measure the weight of an object, and a spring scale is used to measure the mass of an object.
Explanation:
:)
Answer: The right answer is C!
Explanation: This is 100% right hope its helps! :-D
Nén một hỗn hợp khí gồm 3,0 mol nitơ và 7,0 mol hiđro trong một bình kín, phản ứng có sẵn chất xúc tác thích hợp và nhiệt độ của bình được giữ không đổi ở 450oC. Sau phản ứng thu được 8 mol một hỗn hợp khí.
(a) Tính hiệu suất phản ứng tổng hợp NH3.
(b) Tính thể tích khí amoniac được tạo thành (ở đktc)
A substance has a density of 3.89 g/mL. Determine the volume, if the mass is 2.58 g.
The density of a substance can be defined as the mass of the subtance per unit volume of the substance. Mathematically, the density of a substance can be expressed as:
[tex]Density = \frac{Mass}{Volume }[/tex]
With the above information in mind, we can obtain the volume of the substance given in the question above as illustrated below:
Density = 3.89 g/mL
Mass = 2.58 g
Volume =?[tex]Density = \frac{Mass}{Volume} \\\\3.89 = \frac{2.58}{Volume }[/tex]
Cross multiply
3.89 × Volume = 2.58
Divide both side by 3.89
[tex]Volume = \frac{2.58}{3.89}\\\\[/tex]
Volume = 0.66 mLTherefore, the volume of the substance is 0.66 mL
Learn more: https://brainly.com/question/3304831
How many grams are there in 6 moles of water, full working out?
1 mole of water = 18g
6 moles of water = 18×6 = 108 g
Which of the following statements best describes why burning
a match would be considered a chemical reaction?
a The match gets consumed by the fire.
b Burning a match forms new substances.
c Burning a match is dangerous.
d Burning a match is not a chemical reaction.
Answer:
I would say B
Explanation:
well the other options are wrong
Burning a match would be considered a chemical change because it forms new substances.
WHAT IS A CHEMICAL CHANGE:
A chemical change is a change that involves the chemical components of the substance involved leading to the formation of new substances. This is opposed to a physical change, which only involves a transformation of state. Examples of chemical changes include rusting, burning a match etc.Burning a match is an example of chemical change because it involves the formation of new substances such as ash, smoke etc from wood (match stick).Learn more: https://brainly.com/question/23693316?referrer=searchResults
What is the freezing point, in °C,
of a 1.56 m aqueous solution
of K3PO4?
Note: K for water is 1.86 °C/m
Enter rounded answer to three decimal points.
Answer:
1,380 °C hope this is the right answer
[tex]\boxed{\sf \Delta T_f=K_fm\times i}[/tex]
i is vant of factorFor K_3 PO_4
It shall release 3K+ and PO_4- ions
So vant Hoff factor is 4Now
[tex]\\ \rm\Rrightarrow \Delta T_f=1.56(4)(1.86)[/tex]
[tex]\\ \rm\Rrightarrow \Delta T_f=11.6°C[/tex]
It can be freezed easily at room temperature in UK or Siberia
ILL BRAINLIST!!
What would happen to the number of aphids if the number of ladybirds suddenly increased??
Answer:
decrease
Explanation:
ladybirds eat aphids so more ladybirds = more aphids eaten = less aphids
Explain why a car engine is called an ʻinternal combustionʼ engine?
Answer:
They are named as such because the fuel is ignited in order to do work inside the engine. ... The same fuel and air mixture is then emitted as exhaust. This can be done using a piston (called a reciprocating engine), or with a turbine.
What are three ways soil can be sustained?
Answer:
Increasing soil protection by crop residues and plants; adding organic matter to the soil through crop rotations, manures, or crop residues; and careful management of fertilizers, pesticides, tillage equipment, and other elements of the farming system can improve soil quality.
which consists of only one type of atom
a pure substance
a mixture
a compound
an element
Answer:
an element
Explanation:
elements like iron or copper consist of only one type
Sterling silver is a mixture of the metals silver and copper.It is used to make jewellery.sometimes sterling silver causes green staining on skin.Which metal do you think is responsible for this?Explain why.
The composition of 925 Sterling Silver lends itself to the occasional green discoloration because of the presence of copper
need help with these questions
Answer:
I don't know the answer sorry
Jerod used a golf club to hit a ball what was the action and reaction
Answer: I'm pretty sure the action is Jerod swinging the golf club and the reaction is hitting the ball
Explanation:
does nail polish remover sink or float
nail polish remover float
Answer:
it will float on water
explanation:
Geekette hypothesized that since it floated on the water, like ice does, it must be less dense. ... According to Ken Johnsen, who lists his expertise in chemistry, the components of nail polish indeed make it less dense than water
CCC Systems and System Models Liquid gallium changes to a gas at 2229°C.
Describe how a model of gaseous gallium would compare to the model of liquid
gallium shown in the picture.
Gaseous gallium will consist of atoms separated from each other by a large distance and do not experience inter-particle attractive forces.
There are three states of matter;
SolidLiquidGasMatter can exist in all these states of matter depending on the extent of inter-particle attractive forces in the substance.
Inter-particle attractive forces are strongest in solids hence they have a definite shape and volume and do not flow.
Liquids have weaker inter-particle attractive forces than solids hence liquid particles can flow. Liquids have a definite volume but not a definite shape.
Gases have almost no inter-particle attractive forces between particles hence gas particles are separated by large distances and move at very high velocities. A gas does not have definite shape or volume.
A model of gaseous gallium will show atoms of gallium separated by large distances and do not experience inter-particle attraction.
A model of gas particles is shown in the image attached to this answer.
Learn more: https://brainly.com/question/11067389
A chemist is conducting an experiment on a system. At the beginning of the experiment a chemist wants to determine the temperature of the system the system has a definite volume but no definite shape which of the following is most likely also true for the system?
A.The molecules in the system has less kinetic energy than a solid
B. The molecules in the system have more kinetic energy than solid
C. The molecules are held together by stronger attractive forces than a solid
D. Heat flow into the system eventually cause it to have a definite shape
The statement that is true about the system is; " The molecules in the system have more kinetic energy than solid".
There are three states of matter
SolidLiquidGasThe difference between these states of matter lies in the magnitude of intermolecular interaction between particles as well as the kinetic energy of the particles of the substance.
Solid particles have the strongest intermolecular interaction hence they have the lowest kinetic energy.
The magnitude of intermolecular interaction is weaker in liquids than in solids therefore liquid particles have greater kinetic energy than solid particles.
Lastly, gas particles have the greatest kinetic energy because intermolecular forces between them is almost negligible.
Liquids have volume but no definite shape. The description in the question must refer to a liquid system.
Learn more: https://brainly.com/question/11067389
Answer:
The molecules in the system have more kinetic energy than a solid.
Explanation:
Just did test
PLEASE HELP
1. What qualities do you think are important for a scientist to have? Give an
example of how one of these qualities is shown in your own approach to your
schoolwork. Answer in two to three paragraphs. (10 points) Think about what a
scientist does in order to obtain reliable information. Do you do any of these
things?
Answer:
I think some important qualities for a scientist to have is to be hard working, clever, and be able to manage your time and projects well. When you’re a scientist, you are going to be in a lab or in the field a lot. You need to be clever to carefully write down things that are important and interesting. You're also going to have to be hard working as well because as a scientist, it is important to work hard and get sound results.
I think one of the qualities that shows in my schoolwork is hard work. I always do my best on my assignments. I constantly work to get ahead and finish my work on time. The harder I work, the less work I have to do. Since I keep myself busy, I make myself less busy.
Explanation:
yep
things required to prepare hand sanitizer to be used at school
what you need:
1 part aloe vera gel or glycerin
2 part isopropyl alcohol (rubbing alcohol) with a concentration of 91%
Essential oil, such as lemon or lavender (this is an optional ingredient for scent)
Clean containers for mixing and an air-tight container for storage
Spoon or whisk for mixing
Explanation:
step:
Combine the aloe vera gel or glycerin with the isopropyl alcohol in a clean container. To get one cup of sanitizer, combine ⅓ cup of gel or glycerin with ⅔ cup of rubbing alcohol.
Mix thoroughly with your spoon or whisk to ensure that the alcohol is evenly distributed throughout the gel.
Stir in five drops of an essential oil, if you're using it. This is entirely optional and is only meant to improve the scent of the sanitizer.
Store the sanitizer in an air-tight container. Alcohol evaporates with time, so an air-tight container will keep your sanitizer effective for longer. A pump or squeeze bottle can minimize evaporation while keeping your sanitizer easily accessible — just make sure the container for your sanitizer is clean and air-tight
After using soap to wash dishes by hand, it is sometimes difficult to keep your hands from remaining slick. Explain why rinsing your hands in lemon juice would make them less slick.
Answer:
Explanation: Rinsing hands in lemon juice would make them less slick because when a acid (soap) and a alkaline (lemon juice) reacts it becomes neutral
Which of the following is not a magnetic material A cobalt B iron C nickel D plastic E steel
Answer:
D. plastic[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
