which chemical equation is balanced …
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Answer:

It’s important to avoid extra costs, time and wrong knowledge/ idea.

Explanation:

I think the source of information related to job are important for the concerned people​ in order to enable them have the best view and position on jobs available. This helps them to weigh their options very well before taking decisive actions.

It also helps to avoid extra costs, time and wrong knowledge/ idea which in turn promotes general efficiency of such group of people.

Answer:

B

Explanation:

Answer:

True-Did you need help?

Explanation:

Answer:

Sexual reproduction involves two parent/s to produce a new individual of the same species.

Asexual reproduction does not cause variation

All the daughter cells have the same resistance to diseases.​

Explanation:

Answer:

should be B

Explanation:

Answer:

c

Explanation:

Lichen growing on rocks and types of bacteria produce chemicals that weather minerals 3 to 4 times faster than normal.

Answer:

The correct option is c. chi-squared = 12.8, yes it is significant.

Explanation:

Available data:

H₀= Individuals will be equally distributed  

H₁ = Individuals will not be equally distributed.  

∑ is the sum of the terms

O are the Observed individuals: 2 in chamber B, and 18 in chamber A.  

E are the Expected individuals: 10 in each chamber  

X² = ∑ ((O-E)²/E) = ((2 - 10)²/10) + ((18 - 10)²/10) = 6.4 + 6.4 = 12.8  

X² = 12.8  

(K = Independent variables = dry cotton and wet cotton)  

12.8 > 3.84 meaning that the difference between the observed individuals and the expected individuals in each chamber is statistically significant. Not probably to occur by random chances.  

Answer:

The correct option is Z

Explanation:

Active transport can be described as the movement of molecules against a cell's concentration gradient; meaning the movement of molecules across the cell's membrane from a region of lower concentration to a region of higher concentration. From this, it can be deduced that to have active transport in the description in the question, the "body" (the cell or the liquid) with the most amount of magnesium took in more magnesium (showing movement against concentration gradient as the magnesium moved from the least side to the most side). Thus, the correct option is Z

Answer:

The answer is D) cells X and Y

Explanation:

1. You rarely yell or cry, but you can have an anger outburst over small issues.

2. You avoid and distract yourself whenever you start to feel uneasy.

3. You feel like you’re a different person around others than you are by yourself.

4. You often feel uncomfortable around highly emotional people who express anger, sadness, or other emotions visibly.

5. You feel distanced from others, experiencing life from a third-person perspective.

6. You avoid confrontation and you never address the causes of your emotions.

The statement about the wave that is true is wave 3 has lowest frequency. The correct option is C.

The frequency of a repeating event is the number of occurrences per unit of time. It is distinct from angular frequency and is sometimes referred to as temporal frequency. The unit of frequency is hertz, which equals one event per second.

In science and engineering, frequency is an important parameter used to specify the rate of oscillatory and vibration phenomena such as mechanical vibrations, audio signals (sound), radio waves, and light.

The relationship between frequency and wavelength is inverse. The wavelength of the wave with the greatest frequency is the shortest.

One-half the wavelength equals twice the frequency. As a result, the wavelength ratio is inverse to the frequency ratio.

Thus, the correct option is C.

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Answer:

False

Explanation:

Answer:

true

Explanation:

It has the most of complex level of organization within large organisms, such as elephants, is the organ system.

Answer:

because it's like sweet sugar that we uses and eats so that we put lot's of sugar in our bodies to give us more energy.

Explanation:

Answer:

ozone

Explanation: i took the test

Answer:

The possible diagnosis of M. Garcia with chest pain radiating to the left arm and the presence of red patches and vesicles is Herpes zoster.

Explanation:

Herpes Zoster is a disease produced by the varicella-zoster virus, and has a history of having had chickenpox in childhood or youth.

The varicella virus remains dormant in the body for several years, and can reappear, presenting as a localized and painful rash that can produce a neuritis in the affected territory.

The clinical symptoms of the M. Garcia —pain in the thorax irradiated to the left arm, red patches and vesicle-blisters— associated to the antecedent of chickenpox make think of a diagnosis of Herpes Zoster.

Answer:

From the mitochondria

Explanation:

Answer:

A

Explanation:

i think its A........

Answer: glucose

Have a blessed day!!! :)

Answer:

Ice caps and glaciers - 69%

Groundwater - 30%

Surface water - less than 1 %

Explanation:

Fresh water is a type of water, found in nature, in which there is no salt. It is water suitable for consumption (provided it is treated) for humans and animals. Fresh water is also used in agriculture. Only about 2.5% of the water found on our planet is sweet. It is mainly found in polar caps and glaciers, groundwater, surface water.

With the growth of the world population, fresh water has become increasingly scarce. Overuse, waste and water pollution are the main problems related to fresh water today.

As it is a precious and scarce mineral resource, society must be aware that, in order not to run out of water in the near future, it is necessary to avoid waste, use it rationally and do not pollute rivers, lakes and water sources.

Answer:

C).ice sheets, water vapor, rivers

:)

Explanation:

Answer:

D

Explanation:

Scientific experts are the pannel of the researchers involved in studies and analysis. The expert agreeing on a theory based on the evidence is called scientific consensus. Thus, option D is correct.

The scientific consensus is the agreement where the scientists and researchers from various fields agree on a proposed idea. They are evaluated by the majority agreeing with a particular theory.

The publications, academic discussion, and peer review accomplishes the consensus and act as a quality checker that evaluates the data and the facts based on the evidence presented.

Therefore, in scientific consensus, scientific experts agree on a particular theory.

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Answer:

ressessive

Explanation:

because it is what present by its phenotype

Blue color being expressed in the individuals shown here is recessive trait.

In terms of genetics, the term "recessive" describes the connection between an observed trait and the two inherited forms of a gene associated with that feature.

Each gene has two alleles that an individual inherits from each parent. When a characteristic is recessive, both of the (recessive) alleles of the gene that causes the trait must be present for the trait to manifest. When there is only one copy of an allele, it has no effect at all.

This is in contrast to a dominant trait, which can only be expressed when one of the two alleles is present.

Therefore, Blue color being expressed in the individuals shown here is recessive trait.

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Answer:

True

Explanation:

it not only stores energy but it feeds the plant

I think that would be true.

Answer:

♡hi luv ♡

-- it's true

~Clara ✧･ﾟ: *

Explanation:

Your answer would be C

Answer:

A.

Explanation:

That allowed meteorologists to plot weather maps and see weather systems moving from place to place. That improved the accuracy of forecasts. During the 1900s, meteorologists developed even better tools for observing and predicting the weather. :)))) hope that helped!!!

Answer:

0.36g

Explanation:

Given parameters:

Volume of N₂H₄  =  350mL  = 0.35dm³

Temperature of container  = 50°C  = 50 + 273  = 323K

Pressure  = 885torr;

               760torr  = 1atm

               885torr  = [tex]\frac{760}{885}[/tex]   = 0.86atm

Unknown:

Mass of the compound  = ?

Solution:

The mass of the compound can be derived using the expression below;

         Mass = number of moles x molar mass

molar mass of N₂H₄ = 2(14) + 4(1)  = 32g/mol

To find the number of moles;

       PV  = nRT

          n  = [tex]\frac{PV}{RT}[/tex]

P is the pressure

V is the volume

R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

         n  = [tex]\frac{0.86 x 0.35}{0.082 x 323}[/tex]   = 0.01mole

So,

    Mass  = 0.01 x 32  = 0.36g

Answer:

(4) a second set of chromosomes is produced

Explanation:

Answer:

It is D. a second set of chromosomes is produced

Explanation:

Hope this helped have an amazing day!

Answer: D- Increasing substrate concentration.

Explanation: Increasing substrate concentration could increase the rate of the reaction, as there would be more substrate to bind with the enzyme. Hope this helps have a great day :) btw i got it right on khan academy.

The option that could result in an increase in the reaction rate would be increasing substrate concentration.

For enzyme-catalyzed reactions, the substrates are the reactants of the reaction.

Generally for reactions, an increase in the concentration of reactants will increase the rate at which products are formed.

Thus, irrespective of the presence or otherwise of the amylase enzyme, increasing the substrate concentration would increase the rate of reaction.

Since the optimal pH and temperature remain 7 and 32 degrees Celsius respectively, changing these factors will only reduce the rate of reaction. Decreasing the concentration of the enzyme would also reduce the rate at which products are formed.

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