how many ML is this ?

Answer:

They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone.

Explanation:

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Answer:

B) Ammonia gas

Explanation:

Ammonia gas: It consists of only one molecule namely ammonia throughout the substance so it is a pure single substance.

Isotopes are members of an element family that have the same number of protons but differ in the number of neutrons.

Atomic mass of Iodine = 126.86 amu

The elements in nature have several types of isotopes

Atomic mass is the average atomic mass of all its isotopes

MassAtomic mass of Iodine = 126.86 amu atom X = mass isotope 1 . % + mass isotope 2.% + ... mass isotope n.%

Atomic mass of Iodine = 0.8 x 127 + 0.17 x 126 + 0.03 x 128

Atomic mass of Iodine = 101.6 + 21.42 + 3.84

Atomic mass of Iodine = 126.86 amu

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Answer:

Definition: a formal written request, typically one signed by many people, appealing to authority with respect to a particular cause.

name was: Olive Branch petition. Why? = The Olive Branch petition was signed on July 8, 1775, and dispatched to Great Britain on two ships. King George III refused to even accept or consider the Olive Branch petition sent by the Continental Congress.

Explanation:

Answer:

Explanation:

There is a fundamental length, the Planck length. It is the length that light (a photon) travels in a unit of time called the Planck time and conforms to the way to measure length in general, as given by the equation

L = ct

Where L is length (or distance), c the speed of light (3 X 10^8 meters/sec), and t the time the light travels in. The Planck length is exceedingly small (magnitude 10^-35 meters because the Planck time is short (10^-44 sec)

The Planck length, or any length based on the speed of light, is not subject to the imprecision we would find by measurement with a physical ruler, for example, because a ruler can expand or shrink or be bent or warped, etc.

Rather, length based on c (in a vacuum) is constant. This concept is another gift from Einstein’s theory of special relativity. It’s also the central concept in spacetime, though it would take some explaining for me to say why it is so.

Answer: You would write elements in period 1, 2, 3, and period 4 but you would stop at chromium

Explanation: It would have been too long for me to write every symbol

Answer: opaque means not able to see through. An example is that a window is not opaque because you can see through it, but a rock is opaque.

Answer:

Opaque Definition below:

Explanation:

not able to be seen through; not transparent.

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The reactions in which flow of heat takes place into the system is known as endothermic process.

Heat flow is a process in which transfer of heat takes place from one system to other or from outside to inside or vice-versa.

In in any chemical reaction for the completion of reaction if we have to absorb heat or flow of heat takes place from the outside into the system then that reaction is known as endothermic reaction.

Hence resultant process will be endothermic.

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Answer D. endothemic

Explanation: just took the quiz

Option B= Burning candle wax

Answer:buning candle wax B

Explanation:

A P E X

Answer:

it'll produce carbondioxide bubbles

Answer:

it would prevent the milk from curdling

Explanation:

baking soda is regularly added to milk, believe it or not

Answer:

308.15

Explanation:

308.15K − 273.15 = 35°C

Answer:

A) mass cannot enter or exit an isolated system

Explanation:

An Isolated system is both insulated and sealed. No matter or energy can neither escape into the surroundings nor enter from the surroundings

Answer: A. mass cannot enter and exit an isolated system

Explanation: just took the quiz

Answer:

60 grams NaCl

Explanation:

Because it is a complete reaction, the total mass of all the reactants is used. According to the law of conservation of mass, the same amount product should be produced as there was reactants. Add the mass together.

23+37= 60 g

Answer:

when the velocity of an object changes,it is acted upon by an external force

When the velocity of an object changes, it is acted upon by a force. Therefore, option D is correct.

Forces have an impact on how objects move. They can cause motion; they can also slow, stop, or change the direction of motion of an already moving object.

We can say that forces cause changes in velocity because they cause changes in an object's speed or direction. Keep in mind that acceleration is defined as a change in velocity.

Because velocity is a vector quantity, the given statement is correct. It is affected by both magnitude and direction. When one or both of them change, the velocity changes as well.

Thus, When the velocity of an object changes, it is acted upon by a force, option D is correct.

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Answer:

False

Explanation:

Atomic radius is defined as the distance between the nuclei of 2 identical atoms that are bonded together

Now, from periodic tables, chromium has a calculated atomic radius of 1.66 Å while iron has a calculated atomic radius of 1.56 Å

Thus, chromium has a bigger atomic radius than iron.

So the statement is false.

Answer:

116 km...

Explanation:

as mentioned in the question, speed is constant....as it is clearly given the speed is 116 km per hour....so it will go 116km in an hour.

Answer     Qualitative Observations: were you gather info using your senses EX:(listening, touching ect.

qantitative observations: is a collection fo data or useing statistical and numerical analysis methods.

Answer:

The heat absorbed by water is 39243.75 J.

Explanation:

Given data:

Mass of water = 375.0 g

Heat absorbed by water= ?

Initial temperature = 10.0°C

Final temperature = 35.0 °C

The specific heat capacity of water = 4.186 j/g.°C

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

ΔT = 35°C - 10°C

ΔT = 25°C

Q = m.c. ΔT

Q = 375.0 g× 4.186 j/g °C × 25°C

Q = 39243.75 J

The heat absorbed by water is 39243.75 J.

Answer:

1

Explanation:

2

Answer:

The noble gases (Group 18) are located in the right of the periodic table and were previously referred to as the "inert gases" due to the fact that their filled valence shells (octets) make them extremely nonreactivE

Explanation:

Answer:

so the chemical doesn't get in ur eyes  

Explanation:

Answer:

P4(s) + 5 O2 (g)→ P4O10

Explanation:

If we desire to write a balanced chemical reaction equation, the rule of thumb is simple; the number of atoms of each element on the right hand side of the reaction equation must be the same as the number of atoms of the same element on the left hand side of the reaction equation. Once this condition is satisfied, the reaction equation is said to be balanced.

As we can see, we need one mole of P4 and five moles of O2 to produce one mole of P4O10.

The balanced reaction for the combustion of phosphorus (P₄) to form phosphorus pentoxide (P₄O₁₀),

P₄(s) + 5O₂(g) → P₄O₁₀(s)

So, 1 P₄ molecule is needed to balance the number of phosphorus atoms for each P₄O₁₀ molecule.

A balanced equation is a chemical equation in which the number of atoms of each element on the reactant side is equal to the number of atoms of the same element on the product side. In other words, the law of conservation of mass is satisfied, meaning that no atoms are created or destroyed during the chemical reaction.

The coefficients (numbers in front of the chemical formulas) in a balanced equation represent the relative proportions of each reactant and product involved in the reaction. This ensures that the total mass of the reactants is equal to the total mass of the products in a chemical reaction.

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Answer:

It is ultracool dwarfs make up about 15% of the astronomical objects.................blah blah blah

Explanation:

took test

Answer:

Evaporation

Explanation:

Evaporation involves a liquid becoming a gas and sublimation is the change of a solid directly to a gas. Phase changes require either the addition of heat energy or subtraction of heat energy .

Answer:

you have to fill each boxes with upwards arrow first (↑) and followed by downwards arrow (↓) according to each element's atomic number