Chemistry Middle School

1.Write the chemical formula for the ionic compound formed by each pair of ions.

a.Na+and Br−

b.Mg2+and Br−

c.Mg2+and S2−

d.K+and Cl−

e.Mg2+and Cl−

f.Li+and N3−

2. Noel created two binary ionic compounds using sameCation and two different anions -MgO and MgCl2Now ,Can you create two binary ionic compounds withTwo different cations and same anion

PLEASE HELP FAST !!

Answers

Answer 1

Answer: a

Explanation:

Related Questions

Carlos listed some advantages and disadvantages of using nonrenewable resources.



Which best describes Carlos’s error?

Answers

Answer:

The answer is ores must be processed to make useful products!

Explanation:

You know the drill by now-

Answers

Answer:

distance   time

Explanation:

Answer:

First box : Distance

Second Box: Time

Explanation:

<3

I need it done assap

Answers

chemical reactions cannot be reversed and are visible
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

I have 7 more questions left :’)

Answers

A, B for the first two
The 3rd question ranks: XZYW

Heather is investigating the properties of light and how it travels. She places a glass on the windowsill and waits for the sun to shine on the glass and observes what happens. Next, she places a piece of cardboard in front of the glass. Which statement describes the results of her observations?

A Since glass is translucent, most of the light energy was reflected from the glass.
B When the cardboard was placed in front of it, the cardboard absorbed some of the light energy.
C The light from the sun was able to travel through the glass. When the cardboard was placed in front of the glass, it absorbed the light energy from the sun and converted it into heat energy.
D The glass absorbed the light and converted the light energy into heat energy. When the cardboard was placed in front of the glass, the heat was transferred from the glass to the cardboard.
When the sun hit the glass, the light energy was absorbed. When the cardboard was placed in front of the glass, it absorbed the light energy from the sun and converted it into heat energy.

Answers

Answer: C

Since glass is translucent meaning you can see through it, heat energy from the sun will easily pass through it. If you were to conduct this test with a piece of metal the heat would be absorbed by the metal making it extremely hot. In this instance when they put a piece of cardboard in front of the glass it would absorb the heat energy since it is not translucent.

Answer:

nope it is not c

Explanation:

Steps of Cellular Respiration:

___ Carbon dioxide molecules form.
___ Sugar molecules are broken down.
___ A flow of electrons produces chemical energy and water.

Answers

so the first one is sugar molecules are broken down then it's carbon dioxide molecules form then a flow of electrons produces chemical energy water

The answer goes 2,1,3

How many atoms are in Fe(OH)2

Answers

there's a total of five atoms

Answer:

There are 5 atoms

Explanation:

Brainliest Please

In which direction does heat energy move?

A From cold objects to colder objects
B From colder objects to warmer ones
C From warmer objects to colder ones
D From warm objects to warmer objects

Answers

Answer:

B

Explanation:

Because when a cold object is cold it start to get warm because Of the air.

and it start to warm and it gets warm.

C



Heat usually flows to colder objects in order to make them both the same temperature and when the colder object finally gets hot and is the same temperature as the hotter object it stops flowing hope this helps:)

What two objects transmit light?

Answers

Answer:

Water, and metal.

Explanation:

Air, glass and water are common materials that are very good at transmitting light. They are transparent because light is transmitted with very little absorption. Translucent materials transmit some light but are not completely clear.

Jessica is traveling from Miami, Florida, to Chicago, Illinois. Using the map, tell what the land will be like during the first half of her trip.



The elevation will be high.
The elevation will be low.
The land will be mountainous.
The land will stay below sea level.

Answers

The land will be high

Explanation:
The elevation would be high

here the answers for what is radiation?

Transfer of heat through objects touching the source
Transfer of heat through direct physical contact
Transfer of heat through electromagnetic waves
Transfer of heat through the movement of particles

Answers

Transferring heat through electromagnetic waves
C . Transfer of heat through electromagnetic waves

Radiation is said to be process where heat is transferred between two objects in the form of electromagnetic waves . In radiation two object dont need to be in direct physical contact for the heat transfer to happen .

I will brainly
And 5 star rate

Answers

The answer is Agree :)
The answer is agree :)

The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?
a.
3
c.
6
b.
5
d.
7

Answers

C.6

Look at it as H2 So4
H2 two atoms of that element
So4 four atoms of that element
And then up and you get six

How do you enter the density into the calculator?

A. volume (cm3) / mass (g) =
B.mass (cm3) / volume (g) =
C.mass (g) / volume (cm3) =
D.mass (g) X volume (cm3) =

Answers

Mass (cm3)/Volume (g)

I will brainly
And 5 star rate

Answers

Answer:

False

Explanation:

Tearing a paper is a physical change because when the paper is torn only the appearance of paper is changed.

How does the atmosphere make Earth warmer?

Answers

Answer:

Earth's surface warms up in the sunlight. At night, Earth's surface cools, releasing heat back into the air. But some of the heat is trapped by the greenhouse gases in the atmosphere. That's what keeps our Earth a warm and cozy 58 degrees Fahrenheit (14 degrees Celsius), on average.

Explanation:

What two gases in the atmosphere do animals and plants need to breathe and grow?

Answers

Answer: Plants and animals make the gases that the other needs to live. Plants need carbon dioxide and animals exhale carbon dioxide as a waste product. People and other animals need oxygen and plants produce oxygen during photosynthesis.

animals need oxygen to inhale, and exhale carbon dioxide. while plants on the other hand need carbon dioxide from the air to be able to photosynthesize

Use the terms carbon dioxide, nitrates, phosphates, sulfates, and water to complete the chart that describes the inorganic compounds that provide most of the main elements of life to plants.

Answers

Answer: hi imi i new

Explanation:

match each force abbreviation to the correct description.

Answers

Answer:

Fp- force exerted by a push or pull

Fn- support force at a right angle to a surface

Fg also known as an object's weight

Ff- force that comes from a resistance to motion

Explanation:

Correct on EDGE 2020

The force abbreviation to the correct description is describe below;

Fp- force exerted by a push or pull.

Fn- support force at a right angle to a surface.

Fg- also known as an object's weight.

Ff- force that comes from a resistance to motion.

What is force ?

A force is an influence that can cause an object's motion to change. A force can cause a mass object to change its velocity, or accelerate. Intuitively, force can be described as a push or a pull. A force is a vector quantity because it has both magnitude and direction.

The term "force" has a specific meaning in science. At this level, it is perfectly acceptable to refer to a force as a push or a pull. A force is not something that an object possesses or possesses. Another object applies a force to another. The concept of a force is not restricted to living or non-living things.

Thus, Fp- force exerted by a push or pull.

To learn more about the force, follow the link;

https://brainly.com/question/13191643

#SPJ2

When a log burns in a fire, a a physical change has occurred. b mass is gained. c new substances are formed.

Answers

Answer: technically it is chemical and physical change

Explanation: chemical bc it’s burning and physical bc it’s going from a log to ashes

Answer:

C! New substances are formed.

Explanation:

The burning log will release carbon dioxide, which is a new substance that was never there in the first place.

The shallowest part of the ocean is the
a. Continental slope
b. Continental shelf
c. Trench
d. Mid-Oceanic Ridge

Answers

c. Trench................

B. Continental shelf

An object with a mass of 24g and a volume 6mL has a density of?
a. 0.25 g/mL
b. 6 g/mL
c. 144 g/mL

Answers

A. 0.25 g/mL
Because 6/24 is 0.25

Answer:

4

Explanation:

No matter how you look at it none of those answers are correct because Density = Mass ÷ Volume, which is tehcnically 24 ÷ 6 = ?

? = 4

Compound: ________________
. Found in apatite soil, contain phosphorus (P)

Answers

Answer:

Ca5 or Apatite

Explanation:

What can the student conclude about the experiments? (Attachment)
I WILL MAKE YOU BRAINLIEST

A. Experiments 1 and 2 show chemical changes because bubbles were produced.

B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

C. Experiment 1 shows a chemical change because bubbles were produced, and experiment 2 shows a physical change because a liquid turned into a solid.

D. Experiments 1 and 2 show physical changes because no new substances were produced.

Answers

Answer: B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

Explanation: a physical change is reversible

chemical is 2 or more substances combined to make a reaction such as bubbling, change of color or temperature

Which of the following descriptions matches the motion shown in the graph.



A person leaves home and slows down for a pedestrian.


A person leaves home, picks up speed, and then stops at a red light.


A person is parked at parking lot and then speeds off.


A person walks down the block at a steady speed.


If I already asked this but please help ;v;

Answers

Answer:

A person leaves home, picks up speed, and then stops at a red light.

Explanation:

Leandra is baking cookies, and they are ready to come out of the oven. Before she takes them out of the oven, she puts oven mitts on. Why does Leandra do this?

A Heat energy moves from warmer objects to cooler ones.
B Heat energy moves from cooler objects to warmer ones.
C The light energy from her hands will transfer to the cookies.
D The coolness of her hands will transfer to the cookies and will make them cold.

Answers

Answer:

A.

Explanation:

Heat can't come from a cold object but can from a warm of hot one.

Answer: A

Heat moves from the hotter object out and distributes into colder objects. Also heat can’t come from a cold object. You can apply this to a real life scenario as you put oven mitts on so you don’t burn yourself.

And done! :)))))))))

Answers

The answer is 2456774 becaue i just know teehee

I will brainly
And 5 star rate....!!!

Answers

Agree. This is true because you’re technically destroying atoms

Answer:

disagree

lavoisers law of masses

What is the difference between force and velocity?

Answers

Answer:

A force pushes or pulls on an object, but velocity is simply something an object has

Explanation:

Compound: ________________
. Found in saltpeter in soil; contain nitrogen (N)

Answers

Potassium nitrate

Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter or saltpetre. Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder).

Answer:

Potassium nitrate or KNO3

Explanation:

Other Questions
How did the Ming dynasty use bureaucracies and the use of military to gain centralized control? Why is voter apathy a problem in the United States?A. People feel that their votes don't matter.B. Elections only influence local governments.C. Election schedules change every year for federal elections.D. People only elect positions to state governments. help me pleaseeeeeeee Whats the answer????? Lin-Manuel runs a rare book store. Last year, he earned $35,000 in revenue and had explicit costs of $8,000. Lin-Manuel could have made $29,750 testing information security equipment and received an additional $10,000 if he had used the company's inputs in a different way. Calculate Lin-Manuel's economic profit. idk how to do this.............. The Israeli/Palestinian conflict is ALL about religion?TrueFalse The ultimate goal of operations management is to provide high-quality goods and services instantaneously in response to customer demand. Over the years, low cost often came at the expense of quality and flexibility. Furthermore, suppliers didn't always deliver when they said they would, so manufacturers had to carry large inventories of raw materials and components to keep producing. Such inefficiencies made U.S. companies vulnerable to foreign competitors who were using more advanced production techniques As a result of new global competition, companies have had to make a wide variety of high-quality custom-designed products at a very low cost. Something had to change on the production floor to make that possible. Several major developments have made U.S.companies more competitive: (1) computer-aided design and manufacturing (2) flexible manufacturing, (3) lean manufacturing, and (4) mass customization, (5) CAD(6) CAMMatch the company or role with the most appropriate manufacturing technique. Dress designer: In addition to helping in the design of products, the use of this system allows designers to work in three dimensions Shoe designer: The manufacturer programs the computer to make a simple design change, and then that change is readily Incorporated into production Purse designer: Software programs unite these two computer-aided support systems. While the software is expensive, it cuts as much as 80 percent of the time needed to program machines to make parts. Motor starters: Orders come in daily and, within 24 hours, the company's machines and robots manufacture, test, and package the starters-which are untouched by human hands. This system is so efficient it can even accommodate a special order (even a single item) in the assembly without slowing down the process. Toyota corporation: This company utilizes the strategy of using half the human effort, halving the defects in the finished product, using one-third of the normal engineering effort, using half the floor space, and carrying 90 percent less inventoryDell computers: Dell has set up its manufacturing process so that all its computers can be quickly assembled to individual customer orders. Can somebody pls answer these three questions pls!!!!ASAP Native Americans, after being forced from their land in Mississippi, settled where?A. Philadelphia B. Oklahoma C. Western territories D. Mississippi Player Corporation purchased 100 percent of Scout Company's common stock on January 1, 20X5, and paid $28,000 above book value. The full amount of the additional payment was attributed to amortizable assets with a life of eight years remaining at January 1, 20X5. During 20X5 and 20X6, Scout reported net income of $33,000 and $6,000 and paid dividends of $15,000 and $12,000, respectively. Player uses the equity method in accounting for its investment in Scout and reported a balance in its investment account of $161,000 on December 31, 20X6.Required:Compute the amount paid by Player to purchase Scout shares. Why are these considered unruly behaviors rather than delinquent behaviors? Sebastian and his children went into a grocery store and he bought $7 worth of applesand bananas. Each apple costs $1 and each banana costs $0.50. He bought a total of 8 apples and bananas altogether. By following the steps below, determine the number of apples, X, and the number of bananas, y, that Sebastian bought.Determine three ways to have a total of 8 apples and bananas: Identify next three numbers in this sequence: 2, 6, 3, 9, 6, 18, 15 describe a situation in which a choice you made was influenced by societal pressure I NEED HELP ASAPPPPP!!!!!!! (b) What is the slope of y = -2x and what does this mean? What is the worst result of a team leader failing to delegate responsibility ortasks?A. The leader will end up working many hours of overtime.B. The team will learn a lot by watching to see how the tasks shouldbe completed.C. Some team members find reasons to start fighting with othermembers.D. The team might feel that the leader does not trust their abilities.(Apex) Which one of these is a factor in this equation? Theres a popular place in the Spanish-speaking community where people have conversations with neighbors friends watch people or even buy open air markets what is its name