Are spider multicellular

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Answer 1

Answer: Yes, the only single cell organisms that exist are the cells that make up an organism

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PLS ANSWER BEFORE MIDNIGHT 20 POINTS

This is a dumb question but does smelling shapies make you lose brain cells?

Answers

Yes, Sharpies contain volatile solvents—and when inhaled these solvents can produce a "high." The effects of inhalants (including Sharpies) can be similar to those of alcohol and include slurred speech, lack of coordination, euphoria, and dizziness.

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What is the concentration of O2(g), in parts per million, in a solution that contains 0.008 gram of O2(g) dissolved in 1000. grams of H2O(2)?Listen

1

0.8 ppm

8 ppm

80 ppm

800 ppm

Answers

Answer : The concentration of $O_2$ (g) in parts per million is, 8 ppm

Explanation : Given,

Mass of oxygen gas (solute) = 0.008 g

Mass of water (solvent) = 1000 g

First we have to calculate the mass of solution.

Mass of solution = Mass of solute + Mass of solvent = 0.008 + 1000 = 1000.008 g

Now we have to calculate the concentration of $O_2$ (g) in parts per million.

ppm : It is defined as the mass of solute present in one million $(10^6)$ parts by mass of the solution.

$ppm=\frac{\text{Mass of solute}}{\text{Mass of solution}}* 10^6$

Now put all the given values in this expression, we get

$ppm=(0.008g)/(1000.008g)* 10^6=7.99=8ppm$

Therefore, the concentration of $O_2$ (g) in parts per million is, 8 ppm

Classify the chemical equations as being balanced or not balanced

Answers

Answer: Two of them are balanced and two of them are unbalanced.

Explanation:

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on the product side. These equations follow law of conservation of mass.

An unbalanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is not equal to the total number of individual atoms on the product side. These equations does not follow law of conservation of mass.

For the given chemical equations:

Equation 1: $2CO+2NO\rightarrow 2CO_2+N_2$

As, number of carbon, nitrogen and oxygen atoms on the reactant side is equal to the number of carbon, nitrogen and oxygen atoms on the product side. Thus, this is a balanced chemical equation.

Equation 2: $6CO_2+6H_2O\rightarrow C_6H_(12)O_6+O_2$

As, number of oxygen atoms on the reactant side is not equal to the number of oxygen atoms on the product side. Thus, this is not a balanced chemical equation.

Equation 3: $H_2CO_3\rightarrow H_2O+CO_2$

As, number of carbon, nitrogen and oxygen atoms on the reactant side is equal to the number of carbon, nitrogen and oxygen atoms on the product side. Thus, this is a balanced chemical equation.

Equation 4: $2Cu+O_2\rightarrow CuO$

As, number of oxygen and copper atoms on the reactant side is not equal to the number of oxygen and copper atoms on the product side. Thus, this is not a balanced chemical equation

Hence, two of the equations are balanced and two are unbalanced.

1,2,4 are not balanced, 3 is balanced

Properties of water from a glacier and geyser

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Water has three phases: liquid, gas, and solids. Can be easily changed to phase in the temperature range that is in the earth's surface. Global water cycle is based on three phases of water.

Water in the solid phase (ice) is lighter than the liquid phase. This is an anomaly; in general, other compounds in the solid phase has a density greater than the liquid phase so that it will sink. The implication: If the ice is heavier than water, so we just have sedikiit sea! Thewater in the polar regions of seasonal frozen, but the ice sheets willmelt during the summer, or to shift to a more warm and melted there. If ice were heavier than water, it will sink to the bottom of the ocean and isolated from the hot sun. Thus,most of the ocean would be composed of a layer of ice underneath, just afew meters from the surface which is a layer of water during thesummer. Furthermore, it would be very limiting evaporation and cloud formation, which is a source of fresh water on land.

Water can dissolve the salt and gas but can be easily separated as a pure vapor. The sun's rays evaporate water from the ocean, but the salts remain in the sea. The result: water vapor (clouds) driven wind toward land, thencondenses into rain, which is a source of fresh water on land, then backagain to the sea.

Water easily dissolves CO2 and become effective acid solution. In addition to the atmosphere, the CO2 source is also present in the root zone of the soil. All rock will undergo interaction with acid water is and will be eroded and transported to the sea.

Water that has a low viscosity and not sticky. As a result: (1) to flow as surface water water efficiently. (2) Can penetrate (infiltration) into the ground. (3) Flow through permeable rocks.

Water weighs enough to be moved by the force of gravity. As a result: allowing the flow of groundwater and surface water runoff.

Water has a density that is appropriate. The result: no water vapor out of the Earth.

Water and water vapor through. As a result: sunlight can enter through the air and through tens of meters of depth of the sea and lakes, as energy requirements of life.

Water including greenhouse gases. As a result: maintaining water balance in the Earth's temperature.

A student is asked to draw an atom of sulfur on a board. the pictures below represents what the student drew. what is wrong with this sulfur atom plzzzz help i need to finish up

Answers

Ur momma eheheheheheh

Trichinella spiralis the worm that causes trichinosis is a what kind of worm

Answers

It's a parasite. Hope I helped!

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