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ANSWER:

I calculated it in g/cm^3, It equals 0.9982 g/cm^3

The density of water at 20°C is found to be 0.9982 g/mL.  

Density may be defined as the classical measurement of quantity or mass per unit of volume in a particular substance. According to mathematics, density is simply characterized as mass divided by volume. That is:

[tex]Density = \frac{Mass }{Volume }[/tex]

Density typically describes how much space an object or substance takes up in relation to the amount of matter in that object or substance.

Density only significantly depends on the mass of the body as well as the volume occupied by it. The SI unit of density is kg/[tex]m^3[/tex]. The density remarkably does not vary much with respect to the temperature.

Therefore, the density of water at 20°C is found to be 0.9982 g/mL.  

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Answer: The sum of an atom's protons, neutrons, and electrons, with protons equal to 1 AMU each, and electrons are 0 AMU each.

Explanation: By convention, atomic mass of an element is calculated by adding the masses of it's protons, neutons, and electrons. By definition, protons and neutrons are assigned values of 1 "atomic mass unit," or AMU, each, and electons are so small that they are assigned a value of 0 AMU each. Thus, a carbon 12 isotope atom (6 protons, 6 neutrons, and 6 electrons) would have a total of (6+6+0 =) 12 AMU. Carbon-13 has an additional neutron, so it's mass is (6+7+0)= 13 AMU. Molecules are the sum of each of it's individual atoms.

What is an AMU in actual mass? The definition states that 1 AMU is 1/12 the mass of a sinlge Carbon 12 isotope. By defining it in this manner, independent laboratories can calibrate their own instruments with a universal standard. Yes, even the Klingons can calibrate in their own galaxy, far, far away. For those physicists who know the value of even small amounts of mass, 1 AMU is equal to 1.66054x10^-24 grams. Before you scoff, just be reminded that E=mc^2, so while m, mass, may be small, c^2 (speed of light squared) is very large.

Answer:

  1. place the bunsen burner away from any overhead shelving, equipment or lights by at least 1 foot.

2.  remove all un-needed supplies and excess chemicals from the area.

3. tie-back any long hair, take off loose jewlery, or change out of loose clothing.

Answer:

Explanation:

I don't know how you want the conversion done. I use dimensional analysis.

Jane

12 miles / hour [1.6 km/1 mile][1000 m/1 km][1 hour / 3600 sec]

12 * [1.6 * 3600 / 1000  m/s] = 69.12 m/s

5.33 m/s      This answer is a bit shorter than using 5280 feet.

Using 5280 feet

12 miles / hour [5280 ft/1 mile] [1 m/3.281 feet] * [1 hr/3600 sec]

12 * 5280 / (3.281 * 3600)

12 *. 4470

5.36

Jack

330 feet / minute [ 1 meter / 3.281 feet] [1 minute / 60 seconds]

330 * 1/(3.281 * 60)

330 * 1/(196.86)

1.676 m/s

She's going faster than he is, no matter which method is used to do the calculation

Answer:

0.052

Explanation:

0.0702 / 1.35 = 0.052

Answer:

0.021 in scientific notation is 2.1 x 10^-2

Explanation:

Since there are two zeros before the non-zero digits, 10 should be raised to -2.

hope this helps

Using scientific notation, one can express extremely big or extremely small values. When a number between 1 and 10 is multiplied by a power of 10, the result is represented in scientific notation. 0.021 in scientific notation is 2.1 x 10⁻².

A way to express numbers that are either too large or too little to be conveniently stated in decimal form is through scientific notation. It is also known as "scientific form" in Britain, because scientists, mathematicians, and engineers frequently use it for intricate calculations involving large numbers.

A condensed manner of writing numbers is known as scientific notation (also known as standard form). A number is represented by a number from 1 to less than 10, multiplied by a power of 10, when it is written in scientific notation.

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Answer: B

Explanation: The engine cycle begins with the intake stroke as the piston is pulled towards the crankshaft (to the left in the figure). The intake valve is open, and fuel and air are drawn past the valve and into the combustion chamber and cylinder from the intake manifold located on top of the combustion chamber.

We have that this how they differ

Physical properties

Chemical Properties

From the Question we are told that

Silicon properties:

a. blue-gray color

b. brittle

c. doesn't dissolve in water

d. melts at 1410°C

e. reacts vigorously with fluorine

Physical properties

This Refer to Properties that can be seen and  Measured

While

Chemical Properties

This are Refers to the effect of the element in reactions

Therefore

Physical properties

Chemical Properties

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Answer:

The cause of periodicity in properties is the repetition of similar outer electronic configuration after certain regular intervals. For example, all the elements of group 1 i.e. alkali metals have a similar outer electronic configuration, ns1.

Non scientific careers are the careers that do not involve a person studying science courses or pursuing fields related to sciences.

Some of the nonscientific careers that use chemistry include:

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Aluminum is too high in the electrochemical series (reactivity series) to extract it from its ore using carbon reduction. The temperatures needed are too high to be economic. ... The aluminum oxide has too high a melting point to electrolyse on its own. The usual aluminum ore is bauxite.

Answer:

264.7

Explanation:

26470 cm = 264.7 m

just move the decimal over two spaces.

Answer:

climate change, dead zones, genetic engineering, pollutants, deforestation, soil degradation, waste, Over irrigation, salt buildup in soils, monoculture

Explanation:

Hopefully this'll help you!

Answer:

uvo 8hih8hjfiuwubosbwbhp0heg

Explanation:

1. neutrons

2. protons

3. protons and neutrons

4. neutrons

5. electrons

I'm not sure with 1 and 4, sorry :<

Answer:

[tex]\boxed {\boxed {\sf 5 \ m/s^2 }}[/tex]

Explanation:

We are asked to find the acceleration of a shopping cart, given the force and mass. According to Newton's Second Law of Motion, force is the product of mass and acceleration.

[tex]F= m \times a[/tex]

The mass of the shopping cart is 12 kilograms and the force is 60 Newtons. Let's convert the units for force. 1 Newton is equal to 1 kilogram meter per second squared, so the force of 60 Newtons is also 60 kilogram meters per second squared.

Substitute the values into the formula.

[tex]60 \ kg *m/s^2 = 12 \ kg \times a[/tex]

We are solving for the acceleration, so we must isolate the variable a. It is being multiplied by 12 kilograms. The inverse operation of multiplication is division, so we divide both sides by 12 kg.

[tex]\frac {60 \ kg *m/s^2 } { 12 \ kg}= \frac{12 \ kg \times a }{12 \ kg}[/tex]

[tex]\frac {60 \ kg *m/s^2 } { 12 \ kg}=a[/tex]

The units of kilograms cancel.

[tex]\frac {60 \ m/s^2 } { 12 }=a[/tex]

[tex]5 \ m/s^2 =a[/tex]

The acceleration of the shopping cart is 5 meters per second squared.

Answer:

carbon-14

Explanation:

becouse protons and neutrons are nagetivly charged

Answer:

i think it's B.

Explanation:

Answer:

so here is the answer (What kind of a question my freind

Explanation:

Graham crackers are a whole wheat sweet cookie used in baking and making S'mores. Did you know that Graham crackers are called that because they're made from Graham Flour? It's a flour similar to conventional whole wheat flour in that both are made from the whole grain, but Graham flour is ground more coarsely.

Answer:

El rendimiento de tubérculos de la papa es vulnerable a las altas temperaturas y se ve desafiado por el aumento asimétrico de las temperaturas diurnas y nocturnas. Este estudio tuvo como objetivo evaluar la fotosíntesis, el crecimiento de biomasa, la distribución de la masa de tubérculos y el rendimiento de tubérculo seco en papas cosechadas temprano que se cultivaron en el campo bajo condiciones de alta temperatura diurna y nocturna durante diferentes etapas de crecimiento.

The average speed of a body is the ratio of distance covered to time taken.

From the question, we have the following parameters;

Distance covered = 4.4 * 10^9 miles or 7081.1136 meters

Time taken = 2.0 years or 6.307 * 10^7 seconds

Average speed = Distance covered/ Time taken

Average speed = 7081.1136 meters/6.307 * 10^7 seconds

Average speed = 1.12 * 10^-4 m/s

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Answer:

Chemical Change

Explanation:

It is a chemical change because milk is a substance and if it changes its molecular structure ,so it is a chemical change.

Answer:

molecular formula = molar mass ÷ empirical formula

n = 142 ÷ 142

n = 1

molecular formula (P2O5)1 = P2O5

Answer:

Large-scale nuclear is fission a rare phenomenon on Earth because

atoms that undergo fission aren't concentrated enough to sustain a chain reaction.

Answer:

Atoms that undergo fission aren't concentrated enough to sustain a chain reaction. For example, the decay chain of U-238 is called the uranium series. ... Uranium is find in ores on Earth with very law mass percentage in it, so fission is not possible

Answer:

The study of properties for all things living and non-living

Answer:

A. The product formed have more energy than the reactants.

This is because it is an endothermic reaction.

[tex].[/tex]

Answer:

Claim: It is an answer to your question

Explanation:

Answer:

Liquor

Explanation: