Chemistry High School

Which statement best explains a way in which a cell gets rid of wastes?

Answers

Answer 1

Answer:

I would say B but you don't have to take my word for it

Answer 2

Answer:

Explanation:

Related Questions

1. Which of the following
equalities is false?
A. 1 kilogram = 100 meters
B. 50 milliliters = 5 centiliters
C. 3 grams = 0.003 milligrams
D. 70 hectometers = 7,000 decimeters

Answers

The correct answer is C

The false
one is C.

!! brainliest answer !! please help it's due tonight :)

Answers

Answer:

3. D

28. also known as Freon 12

Explanation:

Conductivity is the
1.ability of a solute to dissolvein a solven
2. ability of substances to allow electrons to flow
3. ability of particles to disperse evenly into another substance
4.inability of particles to disperse evenly into another substance

Answers

Answer:

I'm pretty sure its 2

Explanation:

because that's the only on that makes sense

How many atoms are in 100g H2O ?

Answers

Answer:11

explain

: cause i think it is

PLS HELPPPP OMG PLSPLSPLSPLSPLS

Answers

Answer:

D 44.8 L liters of hydrogen gas

Select the correct answer.

Which substance is most likely to form in a precipitation reaction?

A.
calcium nitrate
B.
copper(I) nitrate
C.
iron(I) chloride
D.
iron(II) sulfide
E.
potassium sulfate

Answers

Answer:

Explanation:

Iron is most likely to form a precipitation reaction.

please answer fast! Which of the following statements are false?
A: In a chemical change, atoms are rearranged to make new compounds.
B: The same element is present before and after a chemical change.
C: A physical change does not produce an entirely new substance.
D: A chemical property can be observed without changing the identity of the substance.

Answers

I believe it is C.

Hope this helps!

Which of the following is
NOT a part of the digestive
system?
A
Mouth
B Esophagus
C Intestines
D
Kidneys
1137 AM
o search
B

Answers

Answer:

Kidneys

Explanation:

I learned about it :)

Answer:

Dkidneys

Explanation:

I hope it helps

How many moles of nitrogen are in 1 mole of Al(NO3)3?
O A. 4 moles of nitrogen
O B. 1 mole of nitrogen
C. 3 moles of nitrogen
O D. 7 moles of nitrogen

Answers

Answer:

c i think

Explanation:

The period of time needed for a radioisotope to lose one-half of its activity is known as that isotopes

Answers

Explanation:

The radioactive scattering technique is called radioactive degradation. For each radioactive isotope, the natural radioactive cycle is special and is determined by a period of time termed a half-life. One half-life was its time needed to experience radioactivity for half of both the radioactive nuclei.

Energy in a chemical reaction can be identified as which of the following?

A.) Heat
B.) Light
C.) ∆H
D.) 2,000Kj
E.) All of the above

Answers

I believe it’s A..but I’m not quite sure.

PLEASE HURRY IM TIMED Atoms are made up of electrons, neutrons, and____?
protons
compounds
mixtures
water

Answers

Answer: protons

Explanation:

A. Protons I learned this in class

CuCl2 + NaNO3 -------> Cu(NO3)2 + NaCl

Answers

Answer:

what

Explanation:

I NEED HELP WIT QUESTION THREE

Answers

Answer: 2.00

Explanation:

2 rounded to the nearest hundredth is 2.00

your welcome :)

answers for all three:

1. 4.00

2. 16.04

3. 2.00

Combustibles fosiles ¿Por qué son inflamables los gases naturales?¿Dónde están los gases naturales?¿Cómo podemos sacar el aceite?¿Dónde está el carbón?¿Es el combustible fósil una fuente no renovable? AYUDAA

Answers

Answer:

1) Los gases naturales son inflamables porque el natural contiene metano junto con una pequeña cantidad de otros gases orgánicos, lo que hace que una mezcla de entre 5 y 15% de concentración de gas natural con aire u oxígeno se queme por completo cuando se enciende.

2) El petróleo crudo, que son depósitos de hidrocarburos que se encuentran en depósitos naturales en las formaciones subterráneas de la Tierra, se obtiene perforando un pozo en el yacimiento de petróleo a través del cual se permite que una parte importante del petróleo fluya fuera del yacimiento bajo la presión del yacimiento para recibir procesamiento e instalaciones de almacenamiento en la superficie

3) El carbón se forma cuando se aplica compactación y calor a la turba que proviene de material vegetal muerto enterrado durante un período de varios millones de años.

4) Los combustibles fósiles se consideran una fuente de combustible no renovable porque la velocidad a la que se produce es más rápida que la velocidad a la que se forma.

Una fuente de energía renovable, como la energía eólica, es producida por la naturaleza tan rápido como se consume para generar energía.

Explanation:

advantages of solar energy

Answers

renewable energy source
reduces electric bills
low maintenance costs
reduced needs for fossil fuels and foreign oils

Another one is Electricity use

Which group in the food chain uses the energy of the sun to create its own food A consumers B predators C producers D prey

Answers

Answer:

C producers

Explanation:

All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.

if a piece of aluminum has a density of 2.7g/cm^3. the mass of 5.2g,what is the volume

Answers

Answer:

Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.

Explanation:

Answer:2.7 g cm-3.

Explanation:Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.

Can somebody sort these from non-metals to metals?
Sonorous, low melting point, high density, brittle, dull, malleable, basic oxide

Answers

Sonorous- metal
Low melting point- nonmetal
High density- metal
Brittle-metal
Dull-nonmetal
Malleable-metal
Basic oxide-metal

Correct me is I’m wrong :)

The apparatus which cools the gas is called a ______. This changes a gas into a liquid.

Answers

Answer:

Condenser

Explanation:

A condenser is laboratory apparatus used to condense vapors — that is, turn them into liquids — by cooling them down. Condensers are routinely used in laboratory operations such as distillation, reflux, and extraction(Wikipedia).

Condensers of of practical importance especially in synthetic organic chemistry and in separation science where vapours are often condensed and collected the substance is collected in pure form by distillation.

fill in the blank
______ is a way to describe matter with numbers and units.

Answers

Measurements hope that helps :)

Measurement is a way to describe matter with numbers and units.

Measurement is a fundamental process used to describe and quantify various aspects of matter. It involves assigning numerical values to physical quantities and expressing them using appropriate units of measurement.

In scientific and everyday contexts, measurements provide a standardized and consistent way to communicate information about the properties, dimensions, quantities, and characteristics of objects, substances, or phenomena. By using measurements, we can describe the size, length, mass, volume, temperature, time, and many other attributes of matter.

The process of measurement typically involves two components: a numerical value and a unit. The numerical value represents the magnitude or quantity being measured, while the unit provides the reference or scale by which that quantity is expressed. Units help provide meaning, context, and comparability to measurements.

Hence, measurement provides a quantitative and objective way to describe matter, allowing us to understand and interact with the physical world in a systematic and meaningful manner.

Learn more about matter here:

https://brainly.com/question/29898854

#SPJ 4

Two rabbit species, X and Y, live in an Arctic environment that is also populated by wolves. Species x turns white in the winter and
brown in the spring. Species y stays brown all year. The population of species X has slowly been increasing over the population of
species Y. What is most likely causing this population change?

Answers

Answer:

Explanation:

cell are the blank unit of all living organisms

Answers

yes cells are the blank unit for all things that are living

Calculate AH for the following reaction.
C2H4(g) + H2(g) → C2H6(g)
(ΔHf° for C2H4(g) = 52.5 kJ/mol; ΔHf° for C2H6(g) = -84.7 kJ/mol)
a. -137.2 kJ
b. -32.2 kJ
c. 32.2 kJ
d. 137.2 kJ

Answers

Answer:

a.-137.2 kJ

Explanation:

If the first example symbol used is addition you can copy the plus and follow it how to solve the next!And also if the negative or positive sign.

the spectral classes of four stars are shown in comparison with a Hertzsprung-Russell diagram. Based on the information which star is most like the sun?

Answers

Answer: star 3

Explanation: i did the test

Answer: star 3

Explanation:I did the test

Plants respond to different kinds of stimuli. A plant's roots searching for water are an
example of what kind of response?
A. thigmotropism
B. phototropism
C. hydrotropism
D. gravitropism

Answers

C. Hydrotropism is your answer!

Answer:

Explanation:

Hydrotropism

What does the word photosynthesis mean?
PIC IS BELOW!

Answers

c. light + putting together

Is the following statement true or false:

Cellular respiration only occurs in animal cells.

Question 1 options:
True
False

Answers

Answer:

False

Explanation:

Humans and plans do it as well

Answer:

False

Explanation:

Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals.

What is specific heat?

Answers

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

Specific heat is the amount, like the other brainly answer said, of heat per unit mass required.

help please asap. chem sucks

Answers

I'm assuming that C is carbon.

[tex]4.590 \: mol \: c \times \frac{12.01 \:g \: c}{1 \: mol \: c} [/tex]

55.1259 g of C

Other Questions

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Student B golfs regularly, resulting in a 0.76 probability that his tee shot will hit the green.Required:a. Whats the probability that the duel ends in round 1?b.Whats the probability that the duel ends in the 3rd round?c. Whats the probability that the duel ends in a draw (i.e., that neither student wins)? Cancer is often characterized by tumors. Which would most likely trigger the formation of a tumor? Guys please help me, so this is a social worksheet slide and I have until tomorrow to finish this, i would really appreciate it if one of you guys can help by reading and answering the question I posted. It's also for grade so I'm rushing. 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