Chemistry High School

Help me figure out these I’ll mark u brainliest
It’s science

Help Me Figure Out These Ill Mark U Brainliest Its Science

Answers

Answer 1

Answer:

1. organic

2. plants

3. algae?

4. oxygen

5. Uses

Related Questions

how many feet are equal to 25.51 dm

Answers

Answer:

8.3 feet

hope this helps! <3

5. A football field is about 100 meters long. If it takes a person 20 seconds to run its length, how fast (what speed) were they running?​

Answers

Answer:

Speed, v = 5 m/s

Explanation:

The length of the football field, l = 100 m

the person takes 20 seconds to run its length

v=

t

d

v=

20 s

100 m

v=5 m/s

name two gases other than nitrogen, oxygen water, argon, and carbon dioxide that are found in the atmosphere​

Answers

Answer:

Neon and helium

Explanation:

What is the reaction type
2 Mgl2+ Mn(SO3)2 → 2 MgSO3 + Mnl4

Answers

Answer:

The reaction type is double displacement

Help me out with this question , can someone give me the answer ?
:((

Answers

Answer:

I pretty usre they cause erosion wich makes fresh soil so B.

Explanation:

True or false

9.Circuit breaker is used to protect the user of appliance from an electrical shock.

10.Earthing or Grounding involves attaching to the ground a conductor in one line of the circuit to make that line electrically common with the earth. *​

Answers

Answer:

1. true

2. false

Explanation:

PROMISE PROMISE to make the most of the su in the WORLD CUP and chemica are u doing the meetings with

Is chlorine a substance or a mixture

Answers

Answer:

its a substance

Explanation:

Distinguish the endothermic and exothermic energy changes associated with ionic bond formation, and relate it to stability​

Answers

Answer:

When ionic compounds are formed, energy is released which is exothermic energy. If the energy released during bond formation is reabsorbed, the ionic bond holding the positive ions and negative ions together will break apart which is endothermic energy.

Explanation:

The formation of an ionic crystal lattice from its constituent ions is an exothermic process.

Endothermic changes are energy changes in which energy is absorbed while exothermic energy changes are those energy changes in which energy is evolved.

During the formation of an ionic bond, the metal looses electron(s). This is an endothermic process. The nonmetal accepts electrons. This is an exothermic process.

When the ionic crystal is formed, energy is given out because the energy of the lattice is less than the energy of the isolated ions. This heat change is exothermic.

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How many Atoms are in H2COCH? Need asap pleassseee!

Answers

There is a total of 12, wish you luckkkkkkkk

what is the maximum number of electrons in an atom n=4 l=1 ml=0

Answers

Answer:

18 electrons

Explanation:

when l=1, this tell you that it is "p sub shell"

plz help fast lot of points.

Answers

Answer:

The one at the top: cuticle

The highest line on the right side: palisade layer

The third line on the left: chloroplast

The line near phloem: vein

The line at the bottom: stomata

Entirely on the attachment.

Explanation:

No need.

What is the SI base unit of temperature?​

Answers

Answer:

Kelvin

Explanation:

A valence electron is
a) any electron in the highest energy level of an atom
b) the electron closest to the nucleus of an atom
c) any electron that does not take part in chemical bonding
d) the electron that is gained when a cation is formed

Answers

I believe is a valence electrons are in the outermost energy level of the atom

Inside the box is a list of endangered animals in the Philippines. Group the animals in three ways and make a diagram of your groupings in the space below.

Answers

The middle row! Im sure this would be correct! (please mark this brainly)

Someone pls help me I will make you you brain

Answers

Answer:It’s cyclone movement

Explanation:

why does it smell like burning when i turn my heat on?

Answers

Answer:

your lightbulb is mot likely burnt out

Explanation:

Explain the formation of planets based on our knowledge of the solar system

Answers

Planets form from particles in a disk of gas and dust, colliding and sticking together as they orbit the star. The planets nearest to the star tend to be rockier because the star's wind blows away their gases and because they are made of heavier materials attracted by the star's gravity.

Someone pls help me I will make you you brain

Answers

Answer:

A

Explanation:

it's Conventional Movement

Answer: A
Convection Currents.

Ryan and Abigail are conducting an experiment. They place six ice cubes into a beaker and find the combined mass. They allow the ice cubes to melt and find the combined mass of the beaker and the liquid water.
A
A
Before
After
What can the students expect to be true about the two masses?
The mass of the ice cubes will be greater because solids are more dense.
The mass of the ice cubes will be greater because they took up more space in the beaker.
The mass of the ice cubes and the water will be equal because the same amount of matter is in the beaker
The mass of the ice cubes and the water will be equal because their particles have the same amount of energy
B
c
С
D

Answers

The mass of the ice cubes and the water will be equal because the same amount of matter is in the beaker.

Matter is anything that has mass and occupy space. All substances are composed of matter. According to the law of conservation of mass, matter can neither be created nor destroyed but can be converted from one form to another.

Since mass is the quantity of matter in a substance, the mass of the ice cubes and the water will be equal because the same amount of matter is in the beaker.

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Which element in the list is the most reactive?

C

Ba

S

Cs

Answers

Answer:

Cs

Explanation:

This element is the farthest right, and lowest meaning that the reactivity of it is very high.

1. valence electrons and electronegativity

2. Both reactivity and electronegativity decrease down a group.

3. Electronegativity decreases down a group, and reactivity increases down a group.

4. The number of valence electrons increases from left to right.

5. Cs

{quizlet: captncrun}

Give the number of the sample bottle that contains a substance that would be used in
each situation.
1.
Plumbing
5.
Computer chips
2.
Flavoring Food
6.
Edible Cooking Ingredient
3.
Crafts
7.
Edible Cooking Ingredient
For a headache
8.
Edible Cooking Ingredient
to o N O
4.

Answers

B computer chips is the right answer

what are the important features about earth plates

Answers

Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries.Because of the plates there are many things that is being made with the plates, but without the plates that makes earthquakes there wouldn't be any mountains,volcanoes, islands, fault lines, etc.For example, the San Andreas Fault couldn't have been made if it weren't for the plates.

Hope this helps! =D

Deep ocean and all of that
Thanks have nice day

The nucleus’ pull on its electrons, taking into account any attractions weakened by shielding is called the:

Answers

Answer:

It's called the shielding effect

Explanation:

It describes the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell. (I hope this helps)

The attraction pull of the nucleus on its electron weakened by the shielding of the inner shell electron is called the shielding effect.

What is the shielding effect?

The shielding effect is the valence electrons are shielded from the attraction toward the nucleus of an atom. The shielding effect is the resistance offered by the inner shell electrons to the attraction of the valence electrons toward the nucleus.

This effect increases down the group in the periodic table as the atomic radii also increase and remains the same in the period. This effect is generated by the electrons present in the middle of the nucleus and valence electrons act as shields that repel those outer electrons.

Therefore, the effective nuclear charge acting on the valence electrons decreases. More shielding effect causes less electronegativity of an atom. The shielding effect describes how easily the electron can be removed from the atom making it more reactive.

Learn more about the shielding effect, here:

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A scientist studying the properties of two different gases recorded this data. If the scientist wants to study gas samples A and B at
standard temperature and pressure (STP), what must she do before continuing experimentation?

Answers

Answer:

C. Decrease the pressure of Gas A and increase the temperature of Gas B.

Explanation:

The values for standard temperature and pressure (STP) are zero degrees Celsius and one atmosphere. Since the temperature of gas A is higher than zero degrees, it will have to be reduced. Since the pressure of gas B is less than one atmosphere, it will have to be increased.

what is the trend for atomic radii across the periods and down the group?

Answers

Answer:

So, in general, atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.

Explanation:

Moving from left to right across a period, the atomic radius decreases. The nucleus of the atom gains protons moving from left to right, increasing the positive charge of the nucleus and increasing the attractive force of the nucleus upon the electrons.

Have a happy day! <3Miss Hawaii

Someone pls help me I will make you brain

Answers

Answer:

a

Explanation:

I’m pretty sure it’s A

The distance from one crest to the next crest is ____

Answers

Answer:

Wavelength is the distance from one crest to another, or from one trough to another, of a wave (which may be an electromagnetic wave, a sound wave, or any other wave). Crest is the highest point of the wave whereas the trough is the lowest.

Explanation:

Hope this helps!

Answer:

Wavelength!

Explanation:

Hope this helps, please give me brainliest. ;)

Beth measured her brand new figurine to be
17.550 cm tall. However, the manufacturer
claims that it is 17.260 cm tall. What is the
percent error in Beth's measurement?
A 1.68%
B
1.65%

Answers

Answer: A

Explanation: I just answered mine

(b) A student states, "When the alcohol sample was at a temperature of 500 K, all the particles
were moving faster than any of the particles were moving at 400 K." Do you agree or disagree
with this student's statement? Justify your answer.
B
I
Submit
514
alel
(c) Using boxes like the ones below, draw three particle diagrams representing the sample of
alcohol cooling in this experiment. The diagrams should represent the sample at 3 minutes, 12
minutes, and 17 minutes.
Sign out
09:50

Answers

The kinetic energy of particles depends on temperature. As temperature increases, the kinetic energy of particles increases.

Temperature is defined as a measure of the average kinetic energy of the molecules of a substance. The higher the temperature of a substance the greater its kinetic energy.

From the foregoing, when the temperature is increased from 400K to 500K, greater kinetic energy is imparted to the molecules of the substance hence they move faster according to the kinetic theory of matter.

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which scenario supports the ""one gene–one enzyme"" hypothesis of metabolic disease causation?

Answers

The scenario that supports the "one gene-one enzyme" hypothesis of metabolic disease causation is Phenylketonuria (PKU). This disease (PKU) is caused by the failure to produce a functional variant of an enzyme.

Phenylketonuria (PKU) is a metabolic inherited disorder associated with a decreased metabolism of the amino acid phenylalanine.

PKU is caused by a mutation in the gene responsible for encoding a key enzyme needed to break down phenylalanine.

Untreated PKU may lead to diverse health problems which include brain damage, intellectual disability, seizures, mental disorders, etc.

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