If an atom gives away or transfers an electron, it becomes a/an _____.
A anion
B cation
C neutral
D negative
Answer:
B
Explanation:
A cation is a positively charged in. If an atom gives away an election, which is negatively charged, that would make it more positively charged, thus a cation.
Help this is science class and it’s not necessary my best class and I’m kinda slow at learning
Answer:
d
Explanation:
you can elimate a as your body has a fever to fight the infection and antibiotics are just there to assist. b is elimanated as slowing the life cycle would be modifying the germs genetic's which is not how antibiotcs work they just your bodys imune system. c is elminated as stated in the question the virus came back which not be possible if the bacteria stoped reproducing. that leaves d which means that yould likley be perscribed a diffrent anti biotic
Max and Jimmy want to jump on a trampoline. Max begins jumping in a steady pattern, making small waves in the trampoline. Jimmy starts jumping on the trampoline too. Suddenly, Max goes twice as high even though he did not put any extra effort into jumping.
What type of wave interaction is this? Explain how it occurred.
Answer: The wave interaction described in the scenario is known as constructive interference.
Explanation:
Constructive interference occurs when two waves meet and combine in such a way that their amplitudes add up, resulting in a larger wave. In this case, Max's steady pattern of jumping creates small waves on the trampoline, with a certain amplitude.
When Jimmy starts jumping on the trampoline, his waves combine with Max's waves. If the peaks and troughs of both waves align perfectly, they will add up, resulting in a wave with a larger amplitude. This alignment of peaks and troughs leads to constructive interference, causing Max to go twice as high without any additional effort.
The reason behind this phenomenon lies in the nature of waves. When waves meet, their amplitudes can either add up or cancel out, depending on their relative positions. In the case of constructive interference, the peaks of one wave align with the peaks of the other wave, and the troughs align with the troughs, resulting in an increased amplitude. Conversely, in destructive interference, the peaks align with the troughs, leading to a cancellation or reduction in amplitude.
So, in the scenario, Jimmy's waves align with Max's waves in such a way that their amplitudes combine constructively, resulting in Max going twice as high on the trampoline without exerting any extra effort.
HELP! 100 POINTS! A cinder block is pulled 0.50 meters to the right in 3 seconds. What is the block's average speed to the nearest hundredth of a meter per second (m/s)?
Define energy and power and describe the relationship that exists between them.
Explain how this relationship affects machines or other systems. (1 point)
Your answer should be in complete sentences that describe and explain both questions.
Be sure to check your grammar and spelling.
and them is the pic
What is an ellipse please help)
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
Please help me por favor :'(
What is the predominant use of oil in the United States?
electricity production
transportation
industrial use
residential use
Answer:
Industrial Use
Explanation:
I found a pie chart online which could be useful, however is there any diagrams, videos, graphs, texts .etc that may hint the predominant use?
Which property is a chemical property of a substance?
reactivity
boiling point
melting point
color
Answer: reactivity
Explanation:
on the test
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as
most cases of cancers are caused by
a. mutation
b. radiation
c. tumors
d. drugs
Answer:
mutation
Explanation:
a mutation in the genes causes cancer cells to reproduce and infect others when it should kill itself off immediately
What is the difference between a mixture, a solution, and a pure substance?
PLS HELP ME IF YOU DONT KNON PLZ DONT GIVE WRONG ANSWER
LOOK AT THE PICS
Identify which of the following descriptions of a tree is quantitative?
Question 1 options:
(A) has greenish-gray leaves
(B)has leaves that are 8-10 cm long
(C)has rough, scaly bark
(D)grows well in damp soil
Answer:
b) has leaves that are 8 -10 cm long
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
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discover a good rule for making the center of the atom “stable.” What seems to make the center of the
atom “unstable?”__________________________________________________________________________________
Answer: Atoms that have lost or gained electrons and are now charged (different number of electrons). By putting the correct amount of protons and neutrons in the center, and you cannot have more than 2 protons/neutrons than the other if you want it to be stable. The number of protons determines the name of the element.
Atom is the smallest particle of element. The Center of an atom is unstable.
What is an atom?
There are 118 elements on earth. Element is made up of the smallest particle called an atom. An atom is made up of an electron, proton, and neutron. An electron is a negatively charged particle.
Neutron is neutral. The Center of the atom contains protons and neutrons. Electrons revolve around the nucleus. Atoms are most stable when they are at their octate state or duplet state.
An unstable or imbalanced atom results when an element's atoms contain additional neutrons or protons, which creates extra energy in the nucleus.
Therefore, Atom is the smallest particle of element. The Center of an atom is unstable.
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Which type of rock has a coarse texture due to slow cooling in magma chambers?
extrusive
intrusive
metamorphic
sedimentary
Answer:
Intrusive
Explanation:
The intrusive rocks are also called as the plutonic rock. It is also considered as an igneous rock like granite and diorite. The rock which has a coarse texture due to slow cooling in magma chambers is intrusive rock. The correct option is B.
What is intrusive rock?The intrusive rocks are formed when the magma penetrates some of the existing rock structures, it crystallizes and solidifies below the surface to produce intrusions and coarse texture. Hence the name called intrusive rocks.
There are two ways in which the igneous rocks can be formed which are the intrusion and extrusion of magma. When the magma is passed through the intrusions inside the Earth's crust it forms the intrusive rocks. Granites, sills, etc. are examples.
The intrusive rocks are highly characterized by the size, shape and texture of the crystals.
Thus the correct option is B.
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Mr. Rogers wanted to study the affect of different types of music would have on students ability to complete the IA. What is his dependent variable? What Is his independent variable ?
A. classrooms
B. types of music
C. IA scores
D. students
THIS IS SCIENCE PLEASE HELP!!
Answer:
We do not use a smaller figure scale to measure larger figures, it would be lengthy and would alter the number of significant figures in our measurement.
Explanation:
An astronomical unit (AU) is a unit quantized based on the distance from the Sun to the Earth. It is helpful to determine relatively how far are the other planets from the Sun, compared to Earth. It would be lengthy to express that in kilometers, hence we would require a bigger unit to make calculations much more simple and easy to comprehend.
What is common among elements in the same group?
Answer:elements are arranged in increasing atomic number from left to right
Explanation:
What is the basic building block of all pure substances that make up matter in the world? A. atoms B. cells C. compounds
Answer:
a) Atoms
Explanation:
It is lab investigations day! What clothes should you wear to school?
flip-flops or open toed shoes
a shirt with short sleeves that fits close to your skin
baggy shirt and pants
lots of dangling jewelry
please help me
Granite forms as magma cools in large underground chambers. After a very long time, the magma cools enough to crystallize into solid granite. What kind of rock is granite?
A.
igneous
B.
glacial
C.
sedimentary
D.
metamorphic
Occurs when the particles in one part of an object _____________ more and ____________ with ______________ particles, making them ______________ ______________.
Different _______________ conduct ___________ at different ___________. ____________ are generally good conductors of heat compared to ______________ (paper, wood, plastics).
____________ are better conductors then liquids because _________________ in solids are ______________ _______________.
Occurs when the particles in one part of an object vibrate more and collide with neighboring particles, making them transfer energy.
Different materials conduct heat at different rates. Metals are generally good conductors of heat compared to non-metals (paper, wood, and plastics).
Solids are better conductors than liquids because the particles in solids are tightly packed together.
What is thermal energy?Thermal energy is the energy associated with the random motion of particles in a substance. It is a form of kinetic energy created from the vibrational and rotational motion of atoms and molecules in a substance.
All objects contain thermal energy and when two objects of different temperatures are in contact, heat flows from the hotter object to the colder object until they reach a state of thermal equilibrium. Thermal energy is used in many applications such as heating, cooling, and even cooking food.
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Which element is represented by this model?
Be; Beryllium
N; Nitrogen
C; Carbon
F: Fluorine
Answer: C; Carbon
Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.
Answer:
Carbon
Ok it needs more characters
Using the line graph below, find the independent and dependent variables.
I'll give brainliest.
a major use of magnesium oxide is as a refractory material.
explain in terms of structure and bonding, why magnesium oxide has a very high melting point.
[ this is 4 marks, please provide a good answer ]
[ giving brainliest + thanks on profile ]
Sodium oxide has a high melting point because of the strength ofits bonds. Due to having strong bonds, they cannot be broken veryeasily. Magnesium chloride is ionic compound. There is a strong electrostatic force of attraction between 2 chloride atoms and 1 magnesium atom.
Because it retains its strength at very high temperatures. It is considered a refractory material with a melting point of 6500 degrees F. It is also very non-reactive with other materials that might be put into the furnace and is even used to make crucibles - containers used to melt other substances.
a) The formula of a compound is AB. If the valency of B is 3, what will be the valency of A? b) Baking soda is a white solid and has the formula NaHCO3. How many of each type of atoms are there in it?
Answer:
The valency of B will be 5
Baking soda contains one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms
Explanation:
Hope it will help you:)
Answer:The valency of B will be 5
Baking soda contains one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms
Explanation:
Please Solve The Question! 10 Points!
please help me 7th grade science
When a chemical reaction occurs, what happens to the atoms of the two substances? Provide an example from the Sim (on Amplify) as evidence to support your answer.
When a chemical reaction does not occur, what happens to the atoms of the two substances? Provide an example from Sim as evidence to support your answer.
Answer:
Explanation:A chemical response is a chemical transformation in which two chemicals combine to create a third component.
(i) Adding diluted acid to an active metal causes the test tube to heat up and hydrogen gas to escape, which results in the production of heat.
(ii) When diluted hydrochloric acid is added to silver nitrate, AgCl, a white precipitate, results.
(iii) When water is added to quicklime, the mixture boils and produces heat along with a hissing sound.
(iv) Thermal breakdown of mercury oxide - Mercury turns from red to a metallic silver tint as a result of this process.