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Answer:

When a cold front approaches there can be a sudden drop in temperature, strong wind gusts, and heavy rain and thunderstorms.

Explanation:

Answer:

Indepent variable

Answer:

Scientific Question. A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.

Explanation:

Answer: The Computer: Similarities and Differences. Both use electrical signals to send messages. The brain uses chemicals to transmit information; the computer uses electricity. Even though electrical signals travel at high speeds in the nervous system, they travel even faster through the wires in a computer

Explanation: I hoped that helped. -wear,mask

Answer:

Explanation:

uestion

If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the

element?

Answer:

f = 0.6× 10¹⁶ Hz

Explanation:

Given data:

Wavelength of radiation = 5.00 × 10⁻⁸ m

Frequency of radiation = ?

Solution:

Formula:

Speed of light = wavelength × frequency

speed of light = 3 × 10⁸m/s

Now we will put he values in formula.

3 × 10⁸m/s = 5.00 × 10⁻⁸ m ×  f

f = 3 × 10⁸m/s / 5.00 × 10⁻⁸ m

f = 0.6× 10¹⁶ s⁻¹

s⁻¹ = Hz

f = 0.6× 10¹⁶ Hz

Answer:

22mL

Explanation:

Answer:

The formation of natural diamonds requires very high temperatures and pressures. These conditions occur in limited zones of Earth's mantle about 90 miles (150 kilometers) or more below the surface, where temperatures are at least 2000 degrees Fahrenheit (1050 degrees Celsius) [1].

Explanation:

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Answer:

Copper is symbol C because thats what it says according to the periodic table hope this helps :))))))))))))))))))))))))))))))))))))))))

Explanation:

Answer:

Sodium- 12 Neutrons

Explanation:

Sodium has 12 Neutrons

Answer:

3×6.022×1023 oxygen molicules

Hope it helps

Answer:

If the pH of a solution is less than 7, the solution is called acidic; if the pH is about 7, the solution is neutral; if the pH is greater than 7, the solution is is called basic. In an acidic solution, then, the concentration of hydrogen ions is greater than the concentration of hydroxide ions.

Explanation:

Not sure about the context of the question, but you can check with a ph scale tester.

Answer:

Atmosphere and Biosphere

Explanation:

Answer:

Cupric ions

Explanation:

In the single displacement reaction shown, the cupric ions lost two electrons.

    Cu²⁺  + 2e⁻ →  Cu

The replacement of a metallic ion in solution by a metal atom higher in the activity series than than the metal in solution falls into this category of reactions.

  Since Zn higher in the series, it displacements the cupric ions.

Answer: copper or copper ion

Explanation: The copper ions (Cu2+) gained 2 electrons to form copper atoms.

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 2 × 2

We have the final answer as

Hope this helps you

The statement accurately describes an object's weight and mass is option C.  Its weight changes with gravitational force, but its mass does not.

Gravitational force is the force by which an object attracts other objects into its center of mass.  Earth attracts every objects into the ground by gravitational pulling. That is why we are all standing on earth's surface.

The mass of an object is the total amount of it. It is fixed and does not change any where. However, the weight we experience on earth is  due to the gravity. The weight of object is the product of the mass and acceleration due to gravity of the planet.

Weight of an object will vary from planet to planet with the change in the acceleration due to gravity. The weight we experience in moon is very less compared to that in earth. However our mass is constant. Hence, option C is correct.

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Answer:

Calcium

Explanation:

It has the largest atom

Answer:

B

Explanation:

Answer:

B. Always add the acid to the water slowly, taking a moment to stir between drops

Answer:

Explanation:

Mitosis is crucial to this process. Mitosis is the reason we can grow, heal wounds, and replace damaged cells. Mitosis is also important in organisms which reproduce asexually: this is the only way that these cells can reproduce. This is the one key process that sustains populations of asexual organisms.Jul 22, 2020

Mitosis has an impact on life because it regulates the growth and regeneration of billions of cells within the body.

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Answer:

Selling price of watch A and watch B= Rs. 425

Let cost price of watch A=x

Profit =10%

∴

100

110

x=425

x=386.36

Let cost price of watch B=y

Loss =10%

∴

100

90

y=425

y=472.22

Net cost price =x+y=858.5858

Net selling price =850

Loss%=

858.58

858.5858−850

×100=1%

Explanation:

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Answer:

meters

Explanation:

Answer:

94.16g of N2O

50.88g of O2

Explanation:

O2 reacts with N2 as follows:

2N2 + O2 → 2N2O

To find moles of N2O produced we need to convert the mass of each gas to moles to find limiting reactant and the moles of N2O that could be produced:

Moles N2 (Molar mass: 28g/mol):

60g N2 * (1mol / 28g) = 2.14 moles N2

Moles O2 (Molar mass: 32g/mol):

85g O2 * (1mol / 32g) = 2.66 moles O2

For a complete reaction of 2.14 moles of N2 are needed:

2.14 mol N2 * (1mol O2 / 2 mol N2) = 1.07 moles of O2.

As there are 2.66 moles of O2, reactant in excess is O2 and will remain:

2.66 moles - 1.07 moles =

1.59 moles O2. The mass is:

1.59 moles O2 * (32g / mol) =

And there are produced:

2.14 mol N2 * (2 moles N2O / 2 moles N2) = 2.14 moles N2O.

The mass is (44g/mol for N2O):

2.14 moles N2O * (44g/mol) =

Answer:

I think that it might be cytoplasm

Explanation:

I got this from google

Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. 

Answer:

T₂  = 244.5 K

Explanation:

Given data:

Initial pressure = 3.90 atm

Initial temperature = 298 K

Final pressure = 3.20 atm

Final temperature = ?

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

3.90 atm / 298 K = 3.20 atm/T₂

T₂  =  3.20 atm × 298 K / 3.90 atm

T₂  = 953.6atm. K /3.90 atm

T₂  = 244.5 K

high frequency waves have short wavelengths

The process representing 6CO₂+6H₂O→C₆H₁₂O₆+6O₂.6CO₂+6H₂O→C₆H₁₂O₆+6O₂ is Option C , Photosynthesis.

Photosynthesis is a multi-step process that requires sunlight, carbon dioxide, and water as substrates.

It produces oxygen and glyceraldehyde-3-phosphate (G3P or GA3P), simple carbohydrate molecules that are high in energy and can subsequently be converted into glucose, sucrose, or other sugar molecules.

These sugar molecules contain covalent bonds that store energy.

Organisms break down these molecules to release energy for use in cellular work.

The energy from sunlight drives the reaction of carbon dioxide and water molecules to produce sugar and oxygen, as seen in the chemical equation for photosynthesis.

Though the equation looks simple, it is carried out through many complex steps.

The chemical equation for photosynthesis is  

6CO₂+6H₂O→C₆H₁₂O₆+6O₂.6CO₂+6H₂O→C₆H₁₂O₆+6O₂

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Answer:

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Answer:

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Explanation:

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