What type of reaction does this model represent?
1. single replacement
2. double replacement
3. Decomposition
4. double displacement

Answer:

1. single replacement

Explanation:

Single replacement can be represented by AB+C ⇄B+AC, which matches the picture

Double replacement and double displacement are the same kind of reaction and can be represented by AB+CD ⇄BD+AC

Decomposition reaction can be represented by AB ⇄A+B

This type of fungi is used to make bread as it converts sugar into carbon dioxide, causing the bread dough to rise.

baking soda

yeast

mold

cyanobacteria

Put the following in order from largest to smallest.
Chromosome, gene, nucleus, cell, DNA

Sometimes the number of electrons in an atom changes. These atoms are called what

What form of electromagnetic radiation does gamma radiation use?

The Kinetic Molecular Theory describes the behavior as well as the characteristics of an ideal gas. What are the five postulates of this theory? Provide at least 3 examples to describe these postulates.

2 questions. will give brainliest if i can figure out how

What happens to the electrons of a reducing agent during a reaction?
a.Electrons are gained
b.Electrons are lost
c.Electrons are held
d.Electrons are doubled

When is a substance reduced during an oxidation reduction reaction?
a.After one substance is oxidized
b.Before one substance is oxidized
c.Same time as one substance is being oxidized
d.Only oxidation occurs

My teacher didn’t explain this. Please Help Me!!

Due to their low melting points nitrogen oxygen and helium are examples of which type of matter when at room
temperatures?

A. Gas
B.liquid
C.Plasma
D. Solid

120.0 g of 4.0°C water (Specific Heat: 4.184J/g°C) is heated until its temperature is 35°C. Calculate the amount of heat energy needed to cause this rise in temperature?

Are these ramen noodles expired?

sub-atomic particles like negatively charged electrons, positively charged

protons and electrically ________ neutrons​

These diagrams show two atoms of fluorine and an atom of magnesium.

On the left, a purple circle labeled F is shown twice, both times surrounded by 2 concentric circles. The inner circle has 2 small green spheres. The outer circle has 7 small green spheres. On the right, a purple circle labeled M g surrounded by 3 concentric circles. The inner circle has 2 small green spheres. The middle circle has 8 small green spheres. The outer circle has 1 small green sphere.
Which shows the correct steps in the formation of an ionic bond between these atoms?

A magnesium atom accepts six electrons from the fluorine atoms → Each fluorine atom donates three of the electrons → The magnesium atom becomes a -2 ion → Each fluorine atom becomes a +1 ion
A magnesium atom donates two electrons to the fluorine atoms → Each fluorine atom accepts one of the electrons → The magnesium atom becomes a -2 ion → Each fluorine atom becomes a +1 ion
A magnesium atom accepts two electrons from the fluorine atoms → Each fluorine atom donates one of the electrons → The magnesium atom becomes a -2 ion → Each fluorine atom becomes a +1 ion
A magnesium atom donates two electrons to the fluorine atoms → Each fluorine atom accepts one of the electrons → The magnesium atom becomes a +2 ion → Each fluorine atom becomes a -1 ion

Which of the following is an example of a physical property?*
the mass
ability to rust
flammability
ability to combust

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Question 19 (3 points)

If the density of the earth was 11.0 g/mL instead of its measured value of 5.51 g/mL, the force of gravity would

be twice what it is at sea level. If the earth's density was twice than its actual density, then in pounds per

square inch at sea level the earth's atmosphere in British units would be equal to:

a) 7.35 psi b) 14.7 psi c ) 29.4 psi d) 44.1 psl e) 98.8 psi

seaborgium mass number =

Explain how scientists study the Earth’s interior. PLEASE HELP :))))!

1,670,000,000 in
scientific notation pleaseeee

How many mL of a 6.0 M solution of HNO3 would be needed to prepare 300.0 mL of a 0.60 M solution of HNO3?​

You have a hydrate of compound X that is 60.26g. You heat the hydrate, allow it to cool, and then remass it. The new mass is 23.0g. The molar mass of compound X as an anhydrate is 100 g/mol.

what is motion of a force in kinetic energy ​

A common characteristic of killers who choose poison as their weapon. This way they can avoid having to confront their victim me directly.

Groups of atoms repeat to make up a substance?

True
False

Waves made by the breeze were very different than wave created by speedboat. describe the difference

Anyone know how to do this? It’s for Chemisty

Characteristics that are used to help identify an object are called

Predict Will you find starch in a plant leaf grown in the light? Why?

Mass = 35g Volume = 7cm3 What is the Density?​

All matter has:

volume
mass
density
all of the above

Explain why most inorganic substances do not burn, yet organic substances will
burn.

The atmosphere is primarily made of what gas?
Carbon Dioxide
Nitrogen
Oxygen
Argon​