I think it's A
Explanation:
I don't really got an explanation i just have the feeling
Please helpp!!!!!!!!
If the pattern of ions shown here for galena is expanded in every direction, how many sulfide ions would surround each lead ion? How many lead ions would surround each sulfide ion?
Answer:
the answer is the earths crust because those are the icons surrounded each sulfide.
Explanation:
hope this helps!!! i love science/cemistry
After learning about chemical reactions, Jack investigated different kinds of chemical changes using substances he found in his kitchen so that he could see these changes. Which of the following will NOT occur when a chemical reaction takes place?
A.New bonds form.
B.Existing bonds break.
C.The same substance will have different properties.
Describe how an El Niño event affected weather, food production, water supply, or human health.
Answer:
El Niño is associated with death and disease, most of which result from weather-related disasters such as floods and droughts. In 1997 Central Ecuador and Peru suffered rainfall more than 10 times normal, which caused flooding, extensive erosion and mudslides with loss of lives, destruction of homes and food supplies.
Answer:
Severe drought and associated food insecurity, flooding, rains, and temperature rises due to El Niño are causing a wide range of health problems, including disease outbreaks, malnutrition, heat stress and respiratory diseases.
Explanation:
Explain the factors that determine an object's kinetic energy.
Answer:
Kinetic energy is the energy of motion. An object that has motion - whether it is vertical or horizontal motion - has kinetic energy. There are many forms of kinetic energy - vibrational (the energy due to vibrational motion), rotational (the energy due to rotational motion), and translational (the energy due to motion from one location to another). To keep matters simple, we will focus upon translational kinetic energy. The amount of translational kinetic energy (from here on, the phrase kinetic energy will refer to translational kinetic energy) that an object has depends upon two variables: the mass (m) of the object and the speed (v) of the object. The following equation is used to represent the kinetic energy (KE) of an object.
KE = 0.5 • m • v2
where m = mass of object
v = speed of object
This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four. For a threefold increase in speed, the kinetic energy will increase by a factor of nine. And for a fourfold increase in speed, the kinetic energy will increase by a factor of sixteen. The kinetic energy is dependent upon the square of the speed. As it is often said, an equation is not merely a recipe for algebraic problem solving, but also a guide to thinking about the relationship between quantities.
Kinetic energy is a scalar quantity; it does not have a direction. Unlike velocity, acceleration, force, and momentum, the kinetic energy of an object is completely described by magnitude alone. Like work and potential energy, the standard metric unit of measurement for kinetic energy is the Joule. As might be implied by the above equation, 1 Joule is equivalent to 1 kg*(m/s)^2.
Explanation:
Answer:
Explanation:
a moving object will have: mass and speed. Have students complete this demonstration to learn how mass influences an object's kinetic energy. 2. Select a light object (such as a pencil) and a heavy object (such as a pack of index cards).
what is this question
Help me with this please! Do not say "I don't know" to get my points!!!!!!! It is not helpful and disrespectful. THANKS!
no- and na- nano5
na- and na+ nana2
hope this helps
Explanation:
You are a drop of water going through the water cycle. Where do you go? How do you get there? What processes do you go through? Include at least three phases of the water cycle . I do know what the phases of the water cycle,so i don't need the phases of the water cycle. I just need a righting
→Answer:
evaporation, condensation, precipitation
Explanation:
this diagram may help
Answer:
Explanation:
Hi
How do we know what is inside the Earth? (How do we know the Earth has layers?)
(if you put a random answer for the points i will report)
When water changes from a liquid on Earth's surface to a gas in the atmosphere, this is known as
transpiration
condensation
evaporation
precipitation
Answer:
evaporatioin
Explanation:
gas
Answer this, please!!!!!!!!!!
Answer:
It's C
Explanation:
Most garnet found near Earth's surface forms when a sedimentary rock with a high aluminum content, such as shale, is subjected to heat and pressure intense enough to produce schist or gneiss.
Answer:
Most garnet found near Earth's surface forms when a sedimentary rock with a high aluminum content, such as shale, is subjected to heat and pressure intense enough to produce schist or gneiss. The aluminum garnets are normally red in color with a higher specific gravity and hardness.
Explanation:
yuh
There is a hurricane affecting the Gulf Coast. Weather or Climate?
Answer:
weather
Explanation:
Answer:
climate
Explanation:
I think
hope you get it correct!
Which of the following 4 elements would be the most stable?
A) Neon
B) Chlorine
C) Hydrogen
D) Fluorine
Answer:
I'm gonna say that c. hydrogen is the answer
Explanation:
bc
Michelle is exploring the different kinds of changes that can happen to substances. She knows that changes can alter the looks or shape of a substance. Cutting, melting, bending, or crushing are examples of what kind of change?
A.product
B.physical
C.chemical
Answer:
Physical Change
Explanation:
Cutting, Melting and bending are examples of physical change because it changes the physical appearance of the object. and because you use physical strength to make all of these changes
How does the law of conservation of matter affect baking cookies?
Answer:
The Law of Conservation of Mass states that matter cannot be created or destroyed, although it can be rearranged. Baking cookies means that matter is rearranging it self
Explanation:
Explain the “war of the currents”
please help with at least 1 sentence
Answer:
The war of currents was a series of events surrounding the introduction of competing for electric power transmission systems in the late 1880s and early 1890s.
Explanation:
Which statement best explains why the puppies look different from the parent? A. Their chromosomes contain many different genes. B. They each received a mix of genes from two different parents. C. They received genes that are exactly the same as one parent's genes. D. Their chromosomes contain only half of the instructions for producing traits.
Answer: I think its D - not exactly sure
Explanation:
Answer:
I think it’s a
Explanation:
Because of segregation and recombination
How should Point 1 on the Sea Breeze diagram be labeled? (look at the picture)
a
Cool air, high pressure
b
Cool air, low pressure
c
Warm air, high pressure
d
Warm air, low pressure
ANSWER THESE 2 QUESTIONS AND LEAVE HOW YOU DO IT BELOW
SO I WONT BE USING MY POINTS MUCH
BTW THERE SCI QUESTIONSS!!!!
Answer:
The first one is 102.33 g/ml
Explanation:
307 divided by 3 gets u the answer 102.33(repeated)
Hope this helps :)
Answer:
25,000g
Explanation:
Mass = density x volume
So mass = 500 x 50
That will get you 25,000 ml which you have to convert to grams and it would be 25,000 grams hope this helps
How is the 2nd law of motion different from the 1st law of motion?
(This is about Newton's laws btw)
Answer:
Newton's First Law states that an object with no net force acting on it remains at rest or moves with constant velocity in a straight line. Newton's Second Law states that the acceleration of an object is directly proportional to the net force on the object and inversely proportional to the mass of the object. His First Law of Motion states that an object in motion tends to stay in motion unless another force acts upon it. This law is sometimes confused with the principles in his second law of motion, which states the relationship among force, mass and acceleration.
Explanation:
hope this helped, pls mark brainliest :D
Which of these is likely to happen in the absence of the troposphere?
A meteorite may strike Earth
Radio and satellite communications would stop
We may not experience storms, winds, and clouds
Cases of sunburns, skin, and eye problems may increase
The correct answer is: Option C
"We may not experience storms, winds and clouds"
In the planetary boundary layer is where the friction with the earth's surface influences the air flow. This is the lowest part of the troposphere. This troposphere region is where is formed the winds, storms and clouds. Most of the metereological phenomena we associate with the daily metereological weather occurs in the troposphere, that's why its existence to the world is very important.
Which pair of atoms would be most likely to form a polar covalent molecule?
Hydrogen and Chlorine
Sodium and Chloride
Oxygen and Carbon
Sulfur and Oxygen
Answer:
oxygen and carbon
Explanation:
Help me out? thank you.
Help! Quicklyyyy! Easy science thing.
Answer:
A year too late..
Explanation:
What Factors determine surface Gravity?
Answer: Gravity depends on two main factors.
Explanation: Those factors are mass and distance. I hope this helps!
The picture shows a diagram of Earth's layers.
What is happening at point W?
A. Magma in the mantle is being heated by the hot core, causing it to rise toward the crust, then sink as it cools, the convection circuit pulling the tectonic plates.
B. Water in the mantle is being heated by the hot crust, which causes it to sink toward the core where it cools, the convection circuit pulling the tectonic plates.
C. Energy from the Sun heats the crust, which conducts heat into the mantle, causing the magma to warm and sink toward the core, pulling the tectonic plates.
D. Energy from the Sun heats the crust, causing it to shift and pull the tectonic plates, which uses friction to heat the magma in the mantle.
Answer:
It is A. Magma in the mantle is being heated by the hot core, causing it to rise toward the crust, then sink as it cools, the convection circuit pulling the tectonic plates.
What is a rule for making a negative ion which has negative charge?
Answer:
When a neutral atom gains one or more electrons it becomes negative ion also known as anion
For example
Cl+ e- -------> Cl-
O +2e- -------> O2-
Explanation:
Look at the image below.
At which location is an earthquake most likely to occur?
A. 1
B. 2
C. 3
D. 4
P the foleng stes of digestion hn erder from fret tolast (Organ nome AFE not incuded)
ieginrn
1
utrients ae ssorbed by blood irntiny bloodvessels
Mecanleal digestions sing teeth, and chemieal digestion using sallvs
Mechanical digetion usng orgon walls, nd chemieal digestlon using acids.
4
Waterle remeed fromunsed food, viehhis thencompressed
Ed
Answer:
Chemical digestion involves the breaking down of food with enzymes; mechanical digestion is breaking down food by chewing and tearing with teeth.
Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used. Chemical digestion means breaking down food in a chemical manner. This is achieved by secreting enzymes, which break down chemical bond between food molecules.
you can write that or
Mechanical digestion prepares food for chemical digestion. It involves the chewing and mixing food with saliva, churning of food in the stomach, segmentation of intestines rhythmic local constrictions of intestine, causes mixing improves absorption. On the other hand chemical digestion breaks down complex food molecules into chemical building blocks, enzymes secreted into alimentary canal lumen.
Explanation:
What is the only difference between an atom and an ion?
Answer:
An atom has an equal number of protons and electrons. An ion has an imbalance between the number of protons and electrons. In chemistry, the main difference between an atom and an ion is that an atom is a neutral particle, while an ion has a positive or negative electrical charge
Explanation:
Explain the “war of the currents”
please help me with at least 1 sentence.