Chemistry Middle School

I need help on this so can someone please help? :))

I Need Help On This So Can Someone Please Help? :))

Answers

Answer 1
metals is the answer i think

Related Questions

Which one would charge faster?

Answers

the corrects answer is C

What is the relationship between parent cells and daughter cells.​

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Answer:

Explanation:In particular, eukaryotic cells divide using the processes of mitosis and meiosis. Mitosis is common to all eukaryotes; during this process, a parent cell splits into two genetically identical daughter cells, each of which contains the same number of chromosomes as the parent cell.

A parent cell is the cell that divides during cell division to produce two daughter cells. The two daughter cells produced during mitosis share the same genetic makeup as the parent cell. In meiosis, the daughter cells have half as many chromosomes as the parent cell and a distinct genetic makeup.

What is parent cell ?

A parent cell that is a progenitor of other cells or the first in a line of growing cells, as well as a cell that divides to produce two or more daughter cells.

The cell that divides into two daughter cells during cell division is referred to as the mother or parent cell. The mother cell's genetic makeup is carried over into the two daughter cells created during mitosis.

An organism's reproductive cells are called gametes. They are additionally known as sex cells. Male gametes are referred to as sperm, whereas female gametes are referred to as ova or egg cells. Each haploid cell that makes up a gamete has one copy of each chromosome.

Thus, A parent cell is the cell that divides during cell division to produce two daughter cells.

To learn more about parent cell, follow the link;

https://brainly.com/question/18686461

#SPJ6

help me pls omg , im stuck

Answers

Answer:

b

Explanation:

How do substances move across the cell membrane?

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Answer:

The plasma membrane by diffusion

Explanation:

Materials move within the cell's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion

Plasma membranes by diffusion

Magnesium (Mg) has two electrons in its outermost energy level.
Oxygen (O) has six. How can a Mg atom bond with an O atom?

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Ionic cause Mg will give O its electrons so both their outer shells are full and stable
Mg will give u o sours mg

What does the conversation of mass say about the amount of atoms in the reactants compared to the products?

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Answer:

the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.

Answer:

[tex]\boxed {\boxed {\sf Atoms \ in \ reactants \ = atoms \ in \ products}}[/tex]

Explanation:

The Law of Conservation of Mass states that mass cannot be created or destroyed.

In a chemical reaction, this means the mass of the reactants (substances going in and being changed) must equal the mass of the products (new substances from the reaction).

In addition, the amount of atoms must stay the same. The atoms can and will reconfigure to form different compounds, but the number of atoms stays the same.

Which of the following represents a type of change (physical or chemical) that is different from the rest?

Rusting of metal after being exposed to water
Hydrogen and oxygen combine to make steam
Water vapor condenses to form water droplets
Release of gas when a particular candy is dropped in water

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Answer:

rusting of metal after being exposed to water

Explanation:

The third one since I’m pretty sure the rest are chemical changes while condensation is a physical change.

using distance and can help you identify the position of something

Answers

Answer: Length and width

Explanation:

Answer:

Length and width

Explanation:

How do matter and energy move through an ecosystem?
My scientific explanation is:

Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.

Answers

Food chains allow energy to move through an ecosystem. For example, energy is transferred from organism to organism such as the sun gives energy to grass, grass gives energy to grasshoppers when they eat grass, mice eat grasshoppers, and snakes eat mice, eagles or bigger birds of prey eat snakes. A technique discovered by Charles Elton named energy pyramids display how energy is dispersed on a pyramid starting from producers to tertiary consumers. An example of a producer would be grass, primary consumer would be a grasshopper (herbivores), a secondary consumer would be a mouse/mice (eat herbivores), and a tertiary consumer (eat secondary consumers) would be an owl. Starting from the bottom of the energy pyramid (producers) to the top (tertiary consumers) it 10% of energy is available to travel up the pyramid. That is your scientific explanation!

Pollen is transferred from the stamen of one flower to the stigma of another. What has occurred?

Answers

Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination occurs in flowers where the stamen and carpel mature at the same time, and are positioned so that the pollen can land on the flower's stigma.
I think that does little animals are Making honey

what is the level of organization in living things

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an organism is the level of organization in living things
Organisms in ecosystems

New Orleans has an altitude at and below sea level, a latitude near the Tropic of Cancer (the equator-zone), is surrounded by water, and has no mountains near by. What would you expect the climate to be?

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Answer:

Rainy, sunny and humid.

Explanation:

a sample substance has the chemical formula: H2CO3 , one molecule of the sample contains __ ????

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Answer:

1,6,8

Explanation:

Periodic Table- H=1.C=6,O=8

Hydrogen is H, Carbon is C, Oxygen is O

Answer:

H=hydrogen

C=carbon

O=oxygen

H- 1

C- 6

o- 8

Explanation:

When the boat is placed on the scale, how does its weight compare to the weight of the water it displaced?

Answers

Answer: It'll be lighter than when it is put on the water.

Explanation: Cause when a boat needs to move, it usually takes water into the engine, and then propulses it bk out.

It will be lighter, as water is more heavier then others may think, a boat would weigh less since a chunk of water would most likely weigh 100 tons more.

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ help me!!!!!
Classify the following substances as:

Pure Substance – P Solution – S Mechanical Mixture – MM
Suspension – SU Colloid - C

Substance

Apple Juice

2005 Penny


Propane


Chicken Noodle Soup


Milk

Salsa


14 Karat Gold Ring


Air

Pepsi (in a glass)


Chocolate Chip Cookie

Answers

Answer:

dude me too in which garde are you ☠

Which type of variable is kept the same throughout an experiment?

Constant variable
Measured variable
Outcome variable
Test variable

Answers

Answer:

Constant variable.

constant variable , it always stays the same

Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.

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Answer:stats are higher than before

Explanation: its their evaluation because the stats are higher than beofre

SCIENCE! PLZ HELP FAST !! URGENT!!
What happens to potential energy when you move against the magnetic force?

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Answer:  The field produces a repulsive force pushing them apart. They repel each other. In this case, the closer they are, the higher their potential energy will be. If allowed to move, they may move as far apart as possible or one will swing around to change its orientation.

Explanation:

Help me plzz can't fail this
due today

Answers

Answer:

I'm lazy so I won't explain

1. Groups are the vertical lines on the periodic table

2. Periods are the horizontal lines on the periodic table

3. *make sure to always capitalize the 1st letter, and lowercase the 2nd

*Always use print letters

a. Mg b. K c. Fe d. Cu e. Xe f. Pt

4. a. Carbon b. Lead c. Arsenic d. Osmium e. Krypton f. Strontium

5. a. 1 b. 4 c. 7 d. 14 e. 5 f. 5

6. a. 16 b. 2 c. 1 d. 12 e. 17 f. 8

Hope this helps u

Answer: Lyidabrownies12 is correct

please help me!!
she makes model of a plant cell she viewed using a microscope. The scale is 1 um: 0.5 cm. The student
includes 6 mitochondria in the model.
How many mitochondria do the student see in the real cell?

a.9
b.3
c.6
d.12

Answers

Answer: c is 6 and that is the answer

Explanation: I took the test and got a 100

Match the term with the definition.

Group of answer choices

Compressibility
Flammability
Heat of combustion
Toxicity

A) How easily can a substance be set on fire
B) Measure of how much heat is given off when a substance is burned
C) The ability of a substance to damage or harm an organism
D) Measure of how much the volume of matter can decrease under pressure

whats the order?

Answers

Answer:

here are your answers

Explanation:

compressibility ( D )

flammability( A )

heat of combustion ( B )

toxicity ( C )

PLEASE HELP ON MY FINAL
Which of the following factors have been most influential in allowing manned space exploration?

A- design of rockets capable of escaping earth’s gravitational pull
B- ability to turn food into pills and powders so they can be eaten in space
C- development on powerful batteries which provide light for astronauts to use in the darkness of space
D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

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Answer:

The answer is D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

Explanation:

By using elimination of choice that answer seems the most accurate.

Anyone (cool, funny, middle school) wanna start a conversation?

Answers

Answer:

sure

Explanation:

what's up

Answer:

Im down, Im in 7th

Explanation:

sure hi lol

Human activities can have more affect on the environment than you may think. When a dam is built, what are some of the impacts it will have on the surrounding environment?

Practice
Answer in at least 2 complete sentences.

Answers

Answer:

When a dam is built, the rest of the lake will begin to drought and remove moisture for the wildlife. Making the wildlife adapt, and in severe cases, become endangered.

I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and website links! Thanks.

Answers

Talk about photosynthesis, the nitrogen cycle carbon cycle etc. For websites I suggest Brittanica or really any secure website that ends in .org, they tend to be the most accurate.

I NEED HELP ASAP DON'T JUST ANSWER FOR POINTS OR YOU WILL GET REPORTED!
How many protons, neutrons, and electrons does potassium's neutral atom have?

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Answer:

The number of neutrons is entirely dependent on the Mass number of the particular atom. The standard mass for potassium is 39.

Potassium is element number 19, so it has 19 protons and 19 electrons in the neutral atom. It has therefore 39-19 = 20 Neutrons.

Explanation:

Answer:

Number of Protons 19

Explanation:

Number of Neutrons 20

Number of Electrons 19

Melting Point 63.65° C

How is acids and bases connected to Physical Science?

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An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. A base is an ionic compound that produces negative hydroxide ions when dissolved in water. Bases taste bitter and turn red litmus paper blue.

Answer:

Under the Brønsted-Lowry definition, both acids and bases are related to the concentration of hydrogen ions present. Acids increase the concentration of hydrogen ions, while bases decrease the concentration of hydrogen ions (by accepting them).

Does anyone know the Lab Report of acids and bases???? HELP PLZ WILL GIVE BRAINLIEST WHOEVER HELPS PLZ

Answers

Answer:

Litmus is a natural acid-base indicator extracted from a type of lichen. If you have red and blue litmus paper, you can test different solutions for whether they are acids or bases. Blue litmus paper turns red when a solution is acidic; red litmus paper turns blue in basic solutions

Explanation: Hope this helped

How are the volvox, euglena, paramecium, and amoeba similar and different in how they move, and eat?

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Answer:

Both can hunt for their food (heterotrophs), but euglena can also make their own food (autotroph) with its chloroplasts. Amoeba have pseudopods to move/eat, but euglena have flagella to move. How are euglena and paramecium similar and different? ... Both also use flagella to move, but volvox move together in colonies.

Explanation:

Answer: wattskennedy is right

Explanation:

Which of the following elements does NOT need to be diatomic to exist in nature?

A. Hydrogen
B. Oxygen
C. Carbon
D. Nitrogen

Answers

I am pretty sure it is A
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