What is the relationship between heat and the state of matter of a substance? use the graph to answer the question

Answer:

The three main subatomic particles that form an atom are protons, neutrons, and electrons.

a)Green color appears.

Burning splint test tells us us that it is hydrogen gas.

b)[tex]Ni+ H_2SO_4 \longrightarrow NiSO_4 + H_2 \uparrow[/tex]

c)There would be an effervescence. Upon passing the gas through lime water it turns milky $\implies$ gas is Carbon Dioxide.

d)$\NiCO_3+ H_2SO_4 \longrightarrow NiSO_4 + CO_2 +H_2O$

Answer:

See explanation

Explanation:

Since baking soda is a solid, all we need is to have a spatula, a filter paper and a triple beam balance.

The triple beam balance is set at zero and the filter paper us placed on the triple beam balance. This is the ensure that the mass of the filter paper is recorded as zero gram.

The triple beam balance is now adjusted to 2.6 g and sodium bicarbonate is added to the filter paper on top of the beam balance using a spatula. The 2.6g mass is the point when the pointer of the triple beam balance focuses at the zero mark.

Answer:

Explanation:

Mixture can be easily separated by physical methods. Homogeneity and heterogeneity of a mixture is determined by whether the components there in are in a single phase and evenly distributed or not.

A solution has a solute evenly dissolved in  solvent to form a liquid substance.

An element is the basic form of  substance which cannot be broke down into any other simpler unit.  

I hope this was helpful.

Answer:

3

Explanation:

Balancing the equation:

Original equation: Al + H2SO4 → AL2(SO4)3 + H2

We see that in aluminum in AL2(SO4)3 there is a subscript 2.

We put a 2 in the front of the reactant Al.

We also see a subscript 3 behind (SO4).

We add a 3 in front of H2SO4.

Now we have to balance the H2 on both sides. We add a 3 in front of the H2 on the right as there is 3 H2 molecules on the left.

2Al + 3H2SO4 → AL2(SO4)3 + 3H2

I hope it helps :)

The coefficient of hydrogen is 3

The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula.

Balancing the equation:

Given, the equation: Al + H2SO4 → AL2(SO4)3 + H2

We see that in aluminum in AL2(SO4)3 there is a subscript 2.

We put a 2 in the front of the reactant Al.

We also see a subscript 3 behind (SO4).

We add a 3 in front of H2SO4.

Now we have to balance the H2 on both sides. We add a 3 in front of the H2 on the right as there are 3 H2 molecules on the left.

2Al + 3H2SO4 → AL2(SO4)3 + 3H2

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.

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Answer:

B.Metal B has higher density than metal A

Density is an intensive property as it does not depend on the quantity of the substances Whereas mass and volume are extensive property. Therefore, the correct option is option B that is  Metal B has higher density than metal A.

Density tells about the compactness of the substances, how much dense is the substances in other words. Object that is more denser than water they just sink in the water.

Mathematically, the formula for density can be given as

Density = Mass of the substance ÷volume marked on the graduated cylinder

From given graph we can see that Metal B has higher density than metal A since the mass of metal B is higher than mass of metal A.

Therefore, the correct option is option B that is  Metal B has higher density than metal A.

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Answer:

Nitrogen fixation is the process of converting nitrogen to a usable form.

Answer:

x = 56

relative atomic mass is 58.933

Explanation:

finding the relative molecular mass of x first...

x + (C ×1) + (O ×1) =84

x + (12 ×1) + ( 16 × 1) =84

x + 12 + 16 =84

collect like terms

x = 84-12+16

x= 56

now...

half of 56...

56÷2 =27

and 27 is the atomic number of cobalt...

so relative atomic mass of cobalt is 58.933.

Answer:

My answer is concentration.

Answer:

Explanation:

The density of a substance can be found by using the formula

From the question

mass of cube = 15 g

volume = 75 cm³

Substitute the values into the above formula and solve for the density

That's

Hope this helps you

Answer:

the correct answer is D

Explanation:

The density of gold is 19.4g/cm

The density of gold is found to be 19.32 g/[tex]cm^3[/tex] when it has a volume of 25.0 cm and a mass of 483 g.

Density may be defined as a type of physical quantity that describes the mass per unit volume of any substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. It is commonly expressed in units of grams per cubic centimeter.

It is a word we use to describe how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (it's mass).

Another way to put it is that density is the amount of mass per unit of volume. If an object is heavy and compact, it has a high density.

According to the context of this question,

The mass of gold = 483 g

The volume of a pure sample of gold = 25.0 cm.

The formula for calculating density is as follows:

                     = 483g/25.0 cm = 19.32 g/[tex]cm^3[/tex].

Therefore, the density of gold is found to be 19.32 g/[tex]cm^3[/tex] when it has a volume of 25.0 cm and a mass of 483 g.

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Answer:

Explanation:

The denisty of a substance can be found by using the formula

Making volume the subject we have

From the question

Density = 13.6 g/cm³

mass = 1.50 lbs

We must first convert the lbs to grams in order to solve

That's

if 2.2 lbs = 1 kg

Then 1.50 lbs = [tex] \frac{1.5}{2.2} [/tex]

= 0.681 kg

If 1 kg = 1000 g

Then 0.68 kg = 0.681 × 1000 = 681g

So the mass = 681 g

Substitute the values into the above formula and solve for the volume

That's

= 50.0735

We have the final answer as

Hope this helps you

Answer:

The term "three-dimensional learning" refers to the three pillars that support each standard, now called "performance expectations." These three dimensions are: Science and Engineering Practices, Crosscutting Concepts, and Disciplinary Core Ideas. You can use this rubric to evaluate your own curriculum for NGSS.

Explanation:I HOPE IT HELP

Answer:

When you eat the largest rice cake in the world, you increase how many kilograms and multiply by 7,700 will get the energy of the cake.

Explanation: one kilo=7.700 calories

Explanation:

Most of the carbon compound are convalent in nature and all of the electrons participates in bond formation as such there is no free electrons left to conduct electricity. Moreover carbon compound doesn't readily dissociates to form ions, which conduct electricity. Hence carbon compound are poor conductor of electricity.

Answer:

It is because all the valence electrons are used to form covalent bonds. So, there will be no electrons left to flow the electric current through them.

Explanation:

hope it helps

Answer:

Density = Mass / Volume

V = 1.00 * 4.00 * 2.50 = 10 cm³

22.57 g/cm³ = Mass / 10 cm³

M = 22.57 g/cm³ * 10 cm³

M = 225.7 g

Answer: The mass of the block of osmium is 225.7 g.

Explanation:

Thanks to:

HomertheGenius

The density of the osmium is 22.57 g/cm^3 the volume would be occupied by 1.50 kg of osmium will be 33.85 ml.

The density of a substance is the division of mass of the given substance and the volume of the given substance and its unit will be centimeter cube and it cannot be effect by the temperature.

The density can be calculated by the formula

                       Density = mass of substance / volume of substance in liter

                        Density = 22.57 g/cm³

                        mass = 1.50 kg

Substituting the value in the equation,

          22.57 g/cm³ =  1.50 kg / volume

          Volume = 22.75 g/cm³ × 1.50 kg

           volume = 33.85 ml

Therefore, density of the osmium is 22.57 g/cm^3 the volume would be occupied by 1.50 kg of osmium will be 33.85 ml.

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Answer:

The answer is A

Explanation:

Wavelength is the distnce between the peak or crests in a wave.

The distance from one peak to the next peak is the wavelength. The correct option is A.

A wave is a dynamic disturbance (change from equilibrium) of one or more quantities that propagates.

The distance between identical points in abutting cycles of a waveform signal propagated in space or along a wire is defined as the wavelength.

Thus, the correct option is A.

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Answer:

a. Bronze

b. Copper

Explanation:

a. The alloy formed from the mixture of molten tin and molten copper, with copper having the over triple of the quantity of tin, is bronze. Although, these two metals are often not the only metals present in bronze.

b. The solvent in this mixture is molten copper. This is because, it has the larger percentage of the constituents and hence can easily allow other constituents to be dissolved in it.

The characteristics of the mixtures allow to find the answers to this question about bronze are:

In chemistry when materials do not react with each other, a new compound is not formed, therefore there is a mixture of unreacted elements.

The mixture is the union of two or more components united, but that do not react chemically, we can have two types of mixture:

In mixtures, the material that is in less quantity is called solute and the material that is in greater quantity is called solvent.

In this case we have a combination of Tin and Copper, by heating when they are taken to the liquid state the mixture is formed, the result is a material where no phase or separation can be distinguished, therefore we are in the presence of a homogeneous solution, that cooling would be a solid solution.

Therefore, copper and tin maintain their chemical properties, but the physical properties are altered, this solution is widely used industrially and is called Bronze.

We have 1 mole of tin and 5 moles of Copper, so the solute is the material in the least amount of Tin and the solvent is the material in the greatest amount of Copper.

In conclusion, using the characteristics of the mixtures we can find the answer to this question about bronze:

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Answer:

2

Explanation:

cause it is what it is :> mark me brainlest

Answer:

A-two

Explanation:

Answer:

ZINC ALUMINATE

Answer:

Explanation:

SODIUM ATOM;

SODIUM ATOM IS NEUTRAL

SODIUM ION;

IT IS A CHARGED SPECIE WITH A CHARGE OF +1

SODIUM ATOM:

THE NUMBER OF PROTONS AND ELECTRONS ARE SAME ie:11

SODIUM ION:

NUMBER OF PROTONS AND ELECTRONS ARE NOT SAME ie. ELETRON: 10, PROTONS:11

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Answer:

The number of grams of sulfuric acid in 1 gallon of battery acid is 1909.4 g.

Explanation:

We have:

V = 1 gallon = 3785.4 mL

% m/m = 38.8 %    

The number of grams of sulfuric acid can be calculated as follows:

[tex] m = 1.30 \frac{g}{mL}*3785.4 mL*\frac{38.8}{100} = 1909.4 g [/tex]

Hence, the number of grams of sulfuric acid in 1 gallon of battery acid is 1909.4 g.

I  hope it helps you!

Answer:

80.00 mL

Explanation:

Let's consider the following addition.

22.33 mL  +  55.666 mL +  0.001 mL

22.33 mL has 4 significant figures.

55.666 mL has 5 significant figures.

0.001 mL  has 1 significant figure.

For addition and subtraction, we look at the places to the decimal point.  Add or subtract in the normal fashion, then round the answer to the least number of places to the decimal point of any number in the problem.

22.33 mL  +  55.666 mL +  0.001 mL

77.997 mL ≈ 80.00 mL

Explanation:

For 92.064 the rule that is applied is all digits between two non-zero digits are significant.

For 5, the rule is all non-zero digits are significant

Answer:

0.305556 m / s

Explanation:

Speed = distance / time

2 metres = 0.002 km

6.5 sec = 0.00180556 hrs

Therefore,

Speed = 0.002 / 0.00180556

           =  1.1 km / hr

           = 0.305556 m / s

≈ 0.31 m/s

v = d/t

= 2m/6.5s

= 0.3079 m/s

≈ 0.31 m/s

Answer:

The Doppler effect is a change in the frequency of sound waves that occurs when the source of the sound waves is moving relative to a stationary listener. As the source of sound waves approaches a listener, the sound waves get closer together, increasing their frequency and the pitch of the sound.

Explanation:

Answer:

The basketball has a constant negative acceleration due to gravity when it is thrown

Explanation:

Before the basket ball is thrown, and when the basket ball is in free fall flight it is always under and experiences an attractive force between the Earth and all objects on Earth known as gravitational force such that the direction of the acceleration of the gravitational force is always towards the Earth and therefore, downwards, resulting in an increasing decreased upward speed of the thrown ball in the projectile motion, equivalent to the ball having a negative acceleration, same as all objects in free fall.

Answer:

try use distillation

you also can get the salt by evaporate them under the sun

Answer:

Tell a teacher immediately