2. (10 Points) What is a calorimeter?

Answer:

2.4kg

Explanation:

Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for mass by rearranging algebraically:

m = F/a

So:

m = (12.0N)/(5.0m/s2) = 2.4kg

Answer:

i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all

Answer:

1.56g/L it will be as per my calculation if I am not wrong so

Answer: D: 1.43

The expected density of the given sample of oxygen gas at STP can be calculated using the ideal gas law equation:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

At STP, the pressure is 1 atm and the temperature is 273 K. We are given that the mass of the oxygen gas is 4.8 g. To find the number of moles of oxygen gas, we can use its molar mass, which is 32.00 g/mol:

n = mass / molar mass = 4.8 g / 32.00 g/mol = 0.15 mol

Using the molar volume of an ideal gas at STP, which is 22.4 L/mol, we can find the volume of the oxygen gas:

V = n × molar volume = 0.15 mol × 22.4 L/mol = 3.36 L

Therefore, the expected density of the given sample of oxygen gas at STP is:

density = mass / volume = 4.8 g / 3.36 L = 1.43 g/L

Therefore, the expected density of the given sample of oxygen gas at STP is 1.43 g/L.

Answer:

i dont know...

Explanation:

Answer:

a. triple bond

b.diatomic atom

c. covalent bond

d. non polar covalent bond

e. covalent bond

f. sigma bonds

Answer:

it's harmful

Explanation:

it's harmful to our environment it can endanger our planet and endangered animal species it can also kill lots of plants and we have a hard time burning fossil fuels with limited factories which costs a lot of money.

According to Boyle's law, temperature being constant the volume of the balloon at pressure 3.3 atmospheres is 138.18 ml.

Boyle's law is an experimental gas law which describes how the pressure of the gas decreases as the volume increases. It's statement can be stated as, the absolute pressure which is exerted by a given mass of an ideal gas is inversely proportional to its volume provided temperature and amount of gas remains unchanged.

Mathematically, it can be stated as,

P∝1/V or PV=K. The equation states that the product of of pressure and volume is constant for a given mass of gas and the equation holds true as long as temperature is maintained constant.

According to the equation the unknown pressure and volume of any one gas can be determined if two gases are to be considered.That is,

P₁V₁=P₂V₂

Substitution in above equation gives, V₂=1×456/3.3=138.18 ml.

Thus, the volume of balloon is 138.18 ml.

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Answer:

attractive smell and bright colours

Answer:

2.45 m/s2

Explanation:

Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for acceleration by rearranging algebraically:

a = F/m

So:

a = (4.9N)/(2.0kg) = 2.45 m/s2

Answer:

Multiply the element's atomic mass by the number of atoms of that element in the compound. This will give you the relative amount that each element contributes to the compound. For hydrogen chloride, HCl, the molar mass of each element is 1.007 grams per mole for hydrogen and 35.453 grams per mole for chlorine.

Answer:

The average mass of all the isotopes.

Option B.

Explanation:

Have a great rest of your day.

Answer:

I would say A but not sure

Explanation:

Answer:

D aka synthesis

Explanation:

Got question and got it right :) have a good rest of your day

Answer:

A

Explanation:

The statement best describes solvation " KCl is surrounded by the polar water molecule to form an electrolyte solution which can conduct electricity."

The act of attracting and associating particles of a solvent mostly with molecules as well as ions of a solute would be known as solvation.

A material that contains ions and has been electrically conducting due to the mobility of the ions but still doesn't conduct electrons was called an electrolyte.

Whenever the solvent would be in the water, the process is referred to as hydration. The process of solvation shows the combination of solvent and solute molecules. A solute molecule is usually surrounded with solvent molecules that are organized in a special manner during solvation.

Therefore, the correct answer will be an option (A)

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Answer:

Water is a human necessity. Therefore, it is one of the first things a human settlement would need to have. A community cannot thrive without a water source.

Answer:

Water is a basic need that is more than a necessity, humans can't survive without water for more than a period of three days, And thus having water as available, creates a tendency among humans as humans like to get everything at ease so they tend to settle near the water bodies if possible.

Answer:

coastal area with very high tides deep ocean water miles from a river's mouth

Explanation:

Marshes are a type of wetland ecosystem where water covers the ground for long periods of time. Marshes are dominated by herbaceous plants, such as grasses, reeds, and sedges(National Geographic Society).

Animals found in a marsh include;  frogs, toads, turtles, snakes, mammals, birds and insects. A marsh is a wetland that is dominated by herbaceous rather than woody plant species(Wikipedia). It is characterized by very high tides deep ocean water miles from a river's mouth.

Answer:

a shallow, sheltered area near an estuary

Explanation:

Answer: SnO2 + 2 H2 = Sn + 2 H2O

Explanation: I used a balance equation website. It's called WebQC if you want to check it out for future help.

lima ribu juta miliar triliun ......

Answer:

increase the temperature

Explanation:

if you increase the temperature, the dissolving rate time will decrease.

The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature. Therefore, the correct option is option D.

A solute dissolves together into solvent during the process of dissolution, creating a solution. We are aware that the collisions between the molecules of the solvent and the particles inside the solid crystal are what cause a solid to dissolve in water.

The pace of dissolution will rise if anything is done to make such collisions happen more frequently or with more energy. Consider attempting to dissolve little sugar in a cup of tea. A cube of sugar would dissolve more slowly than a packet of powdered sugar. Stirring or stirring the solution would speed up the rate of dissolution. The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature.

Therefore, the correct option is option D.

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Answer:

B

Explanation:

because sea water taste like Salt

Answer:

40.5 g/mL

Explanation:

Density is a measure of a substance's mass over its volume.

d = m/v

Therefore d = 255.15g/6.3mL = 40.5 g/mL

Answer:

ohh... it's time vs air that's all

Answer:

a) Van der Waals intermolecular forces

b) bonded

c) one pair

d) two pairs

e) three pairs

f) chemical bonds

g) two atoms

h) two or more covalently bonded atoms

Explanation:

(a) Covalent bonds are one type of Van der Waals intermolecular forces that are formed when two atoms share electron(s)

(b) Covalent compounds consists of two bonded atoms

(c) Single covalent bond: are formed when two atoms share one pair of electrons.

(d) Double covalent bond: are formed when two atoms share two pairs of electrons.

(e) Triple covalent bond: are formed when two atoms share three pairs of electrons.

(f) A molecule is a neutral groups of atoms that are held together by chemical bonds.

(g) Diatomic molecule consists of two atoms.

(h) Molecular compound is made of two or more covalently bonded atoms.

Answer:

Proton

Explanation:

It has a positive charge

Answer:

electron

Explanation:

Answer:

Explanation:

The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound