Chemistry Middle School

Help me with this please! Do not say "I don't know" to get my points!!!!!!! It is not helpful and disrespectful. THANKS!

Answers

Answer 1

no- and na- nano5

na- and na+ nana2

hope this helps

Explanation:

Related Questions

Which of the following would most likely form an ionic bond?

Br and Cl

O and Cl

H and Cl

Na and Cl

Answers

Na and Cl would most likely form an ionic compound

na and ci i’m pretty sure

I need help with the question in the photo!!

Answers

Answer:

a semi-crystalline structure is formed, which holds the water molecules apart, making ice less dense than liquid water, such that it floats. This means that it insulates the water beneath, allowing organisms in the liquid water to survive. Cohesion is the tendency of molecules within a substance to ‘ stick together

explanation:

The person is right btw

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

Answers

→Answer:

evaporation, condensation, precipitation

Explanation:

this diagram may help

Answer:

Explanation:

How is the 2nd law of motion different from the 1st law of motion?

(This is about Newton's laws btw)

Answers

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 ones are right

Answers

I think the last one

It's C D and F

hope this helps!

Explain the “war of the currents”
please help me with at least 1 sentence.

Answers

The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s.

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

Answers

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

The correct answer is B.

PLEASE HELP ME ITS DUE IN 1 HOUR PLZZZ

Answers

I can’t use evidence from the picture but the green slime from the pond that they are talking about is called Algae, which is alive and can grow quickly with sunlight or any other source of energy such as water and carbon dioxide. Hope this helps!!

I can tell me and you have chemistries

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.

Answers

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

Answers

A because the cool air coming off the ocean and high pressure rises

Answer this, please!!!!!!!!!!

Answers

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

In meiosis, if only one-half of the chromosomes are in the egg cell or sperm cell, what are they known as?

Answers

Answer:

gametes

Explanation:

Gametes contain half the chromosomes contained in normal diploid cells of the body, which are also known as somatic cells. Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by hal

Gametes, they’re half of the number of chromosomes of normal cells because they have to combine to form the normal amount

What is the only difference between an atom and an ion?

Answers

An ion is partials and an atom is a base

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:

I have 2 questions....but it's multiple choice for 1 of them.

Is blood an organic or inorganic compound?

Which inorganic compound do all living things require to survive? Choose all that apply, meaning multiple answers is ok...
A) Blood
B) Water
C) Carbon Dioxide
D) Organic Soil

Answers

1. Blood is an organic compound

2. B)

Answer:

1. Organic

2. Water

Explanation:

hope its right

Beginning
1
Nutrients are absorbed by blood in tiny blood vessels.
2
Mechanical digestions using teeth, and chemical digestion using saliva.
3
#
Mechanical digestion using organ walls, and chemical digestion using acids.
4
Water is removed from unused food, which is then compressed.
End

Answers

Answer:

yeah it is

Explanation:

what rhe ebenja

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)

Answers

The earth is made up with three different layers

what is this question

Answers

I believe A bro……………

How many atoms of each element are in the chemical formula P2O5? 2 phosphorus and 5 oxygen 5 phosphorus and 2 oxygen 1 phosphorus and 5 oxygen 2 phosphorus and 1 oxygen'
WILL GIVE BRAINLIEST!

Answers

Answer:

2 phosphorus and 5 oxygen

Explanation:

Answer:

Explanation:

When water changes from a liquid on Earth's surface to a gas in the atmosphere, this is known as

transpiration
condensation
evaporation
precipitation

Answers

evaporation because it evolves into a gas

Answer:

evaporatioin

Explanation:

gas

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.

Answers

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.

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.

Answers

C because you can’t change the properties only the form of the properties

C is correct bc you can only change form

Explain the “war of the currents”
please help with at least 1 sentence

Answers

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:

What Factors determine surface Gravity?

Answers

Answer: Gravity depends on two main factors.

Explanation: Those factors are mass and distance. I hope this helps!

The strength of the gravitational force between two objects depends on two factors, mass and distance.

How does the law of conservation of matter affect baking cookies?

Answers

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:

Which of the following 4 elements would be the most stable?
A) Neon
B) Chlorine
C) Hydrogen
D) Fluorine

Answers

Answer:

I'm gonna say that c. hydrogen is the answer

Explanation:

ANSWER THESE 2 QUESTIONS AND LEAVE HOW YOU DO IT BELOW
SO I WONT BE USING MY POINTS MUCH

BTW THERE SCI QUESTIONSS!!!!

Answers

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

What is a rule for making a negative ion which has negative charge?

Answers

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:

CAN YOU GUYS PLEASE HELP ME?? TYYY

Answers

the answer is c because it turnt out to have smooth seeds which means smooth was dominant over wrinkly

Which two factors that influence weather are caused by the uneven heating of
Earth's surface by sunlight?
A. The formation of ocean currents that carry cold or warm water
B. The curving of an ocean current's path as Earth rotates
C. The formation of convection currents in the atmosphere
D. The curving of an air current's path as Earth rotates

Answers

B, sorry if i am wrong.

I guess it C. The formation of convection currents in the atmosphere

Someone says "Stars are like the sun, except stars are very tiny." What would you say ?

Answers

Stars are not like the sun stars have different temperatures and the sun only have one the only thing stars have in common with the sun it that is light is the sky

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