when a gas is dissolved in a liquid, what happens when the pressure
increases?
a. the gas begins to boil in the liquid.
b. the gas molecules decrease in size.
c. more gas dissolves into the liquid.
d. the gas is squeezed out of the liquid.

Answer:

39.2 g

Explanation:

because moles = mass / mr (mr of h is 1)

so 39.2/1= 39.2 moles

hope this helps you to understand :)

The correct statements are:

- The cake would be considered a product.

- Flour, sugar, eggs, and baking powder would be considered reactants.

In chemistry, a reactant is a substance that is used in a chemical reaction to produce another substance, known as a product. In the process of baking a cake, the flour, sugar, eggs, and baking powder are combined and undergo chemical reactions to produce the final product, which is the cake. Therefore, the flour, sugar, eggs, and baking powder would be considered the reactants, while the cake would be considered the product.

The ingredients in a cake are flour, sugar, eggs, and baking powder. The statements best describes the chemical process of baking a cake is The cake would be considered a product, Flour, sugar, eggs, and baking powder would be considered reactants. Therefore, option A and B are correct.

Baking is the process of cooking with dry heat, typically in an oven. It is most likely the oldest cooking method. Bakery products such as bread, rolls, cookies, pies, pastries, and muffins are typically made from flour or meal derived from grain.

When you bake a cake, the ingredients undergo a chemical transformation. When the molecules of two or more substances are rearranged to form a new substance, this is referred to as a chemical change.

The ingredients in a cake are flour, sugar, eggs, and baking powder. The statements best describes the chemical process of baking a cake is The cake would be considered a product, Flour, sugar, eggs, and baking powder would be considered reactants.

Thus, option A and B are correct.

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ANSWER

The formula of strontium oxide is SrO

EXPLANATION

Strontium oxide is formed when strontium reacts with oxygen

Below is the reaction between strontium and oxygen

Hence, the formula of strontium oxide is SrO

The percent by mass of NaCl in the solution is approximately 16.47%.

To calculate the percent by mass of a solution, you need to determine the mass of the solute (NaCl) and the mass of the entire solution (NaCl + water). Here's how you can calculate it:

Mass of NaCl = 14 g

Mass of water = 71 g

Total mass of the solution = Mass of NaCl + Mass of water = 14 g + 71 g = 85 g

Now, you can calculate the percent by mass of NaCl in the solution:

Percent by mass of NaCl = (Mass of NaCl / Total mass of the solution) * 100

Percent by mass of NaCl = (14 g / 85 g) * 100

Percent by mass of NaCl = 16.47%

Therefore, the percent by mass of NaCl in the solution is approximately 16.47%.

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Answer:

Explanation:

Here, we want to get the mass of the given atom

The atomic mass is simply the sum of the mass of the protons and neutrons

From the nucleus, we can see that we have 5 protons and 5 neutrons

Although they have different charges, they have roughly the same mass

The mass of each is approximately equal to 1

Thus, we have the mass of the atom as;

Answer:

5.00

Explanation:

because ignoring the pH solution part and doing the math it comes around to 1.0x5.0 which 1 times anything is itself so its 5

Answer and Explanation:

The freezing point of Titanium is 1668 C or 3034.4 F...

The freezing point of Titanium (Ti) is 1668°C.

Titanium is a chemical element. The symbol of titanium is Ti. Atomic number of Ti is 22. Electronic configuration of Titanium is [Ar] 3d² 4s².

The temperature of a liquid which changes its state and becomes a solid is called as Freezing point. The freezing point of Titanium is 1668°C.

Thus from the above conclusion we can say that The freezing point of Titanium (Ti) is 1668°C.

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The majority of the lead(II) iodide in the solution precipitates out as a yellow solid flag.

Define lead iodide?

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The empirical formula of Magnesium Fluoride is; MgF₂, Iron(II) Sulfide is  FeS,  Magnesium Sulfide will be MgS, and Iron(II) Fluoride is FeF₂ for four binary ionic compounds that can be formed using the given ions.

To determine the empirical formula of binary ionic compounds, we need to combine the cation (positive ion) with the anion (negative ion) in the lowest whole number ratio that results in a neutral compound. Here are four examples using the given ions;

Magnesium Fluoride;

Cation; Mg²⁺

Anion; F⁻

To achieve a neutral compound, we need two fluoride ions to balance the charge of one magnesium ion.

Empirical Formula; MgF₂

Iron(II) Sulfide;

Cation; Fe²⁺

Anion; S²⁻

To balance the charges, we need one iron ion to combine with one sulfide ion.

Empirical Formula: FeS

Magnesium Sulfide;

Cation; Mg²⁺

Anion; S²⁻

To achieve a neutral compound, we need one magnesium ion to combine with one sulfide ion.

Empirical Formula: MgS

Iron(II) Fluoride;

Cation; Fe²⁺

Anion; F⁻

To balance the charges, we need two fluoride ions to combine with one iron ion.

Empirical Formula; FeF₂

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Answer:

Regional metamorphism occurs at convergent plate boundaries, due to intense pressure. As two plates collide, the Earth's crust folds and faults. The intense pressure changes large areas of the Earth's crust into metamorphic rock. Mountain ranges are typically metamorphic rock, due to plate tectonic processes.

Explanation:

Hope this helps :D

Tectonic plate movement is responsible for forming regional metamorphic rock.

The tectonic plate movement involves the subsurface movement of formation caused by natural force of earth.  These movement can be uplifting, faulting or folding.

There are three main types of tectonic plate movement.

There are mainly three types of rock.

Thus, tectonic plate movement is responsible for forming regional metamorphic rock.

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Your question is incomplete but most probably your full question was

Tectonic plate movement is responsible for forming which type of rock? Choose all that apply

A. Igneous rock

B. Metamorphic rock

C. Sedimentary rock

D. None of the above

Answer:

of gravity

Explanation:

lmk if this is wrong

Multivalent ions are located in the right hand side of periodic table in a zig-zag order.

Multivalent ions are defined as the elements with more than one stable ion. Generally, Ionic compounds containing multivalent elements must have Roman numerals in their names in order to indicate which ions is forming that compound. Basically, the roman numeral is written in brackets after the element to indicate the charge

The Five Multivalent Metals present in the modern periodic table are copper. Cu 1+ copper(I) Cu 2+ copper(II) iron. Fe 2+ iron(II) Fe 3+ iron(III) mercury. Hg2 2+ mercury(I) Hg 2+ mercury(II) lead. Pb 2+ lead(II) Pb 4+ lead(IV) tin. Sn 2+ tin(II) sn 4+ tin(IV).

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The empirical formula for an ionic compound is typically written in the form of "AxBy," where "A" is the number of atoms of the "parent" element and "x" and "y" are the numbers of atoms of the "daughter" element.

The empirical formula for an ionic compound is a simplified formula that represents the simplest ratio of the number of atoms of each element in the compound. To determine the empirical formula for an ionic compound composed of calcium ions (Ca) and bromide ions (Br), you would need to know the molar mass of each ion and the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound.

The molar mass of calcium (Ca) is 40.08 g/mol, and the molar mass of bromide (Br) is 79.9 g/mol. Therefore, the molar mass of the compound is the sum of the molar masses of the ions:

Molar mass of compound = molar mass of Ca + molar mass of Br-

= 40.08 g/mol + 79.9 g/mol

= 119.98 g/mol

To determine the empirical formula, you would need to know the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound. For example, if there are 2 moles of calcium ions and 1 mole of bromide ions in the compound, the empirical formula would be "Ca, Br".

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To convert the displacement total volume of cylinders of the engine in a Ford Mustang from 5.0L to cubic inches, we need to use the conversion factor between liters and cubic inches.

One liter is equivalent to 61.0237 cubic inches. First, we can write the given displacement in cubic centimeters as follows:5.0 L = 5.0 x 1000 mL = 5000 mL1 mL = 0.0610237 cubic inches 5000 mL = 5000 x 0.0610237 cubic inches= 305.1185 cubic inches

Therefore, the displacement total volume of cylinders of the engine in a Ford Mustang is equivalent to 305.1185 cubic inches.

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As per given statement as follows:-

generally, independent variables are the one manipulated by investigators and study effects. Dependent variables are the measurements and observation by the data collected.

Experimental group are the participants exposed to the  independent variable and control group the participants treated same as experimental group but not  exposed to independent variables.

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Answer:

the called potential energy because the potential energy is the latentenergy in an object at rest

Human activities that disrupt the carbon cycle include the burning of fossil fuels. The statement that best summarizes the disruption of the carbon cycle due to the burning of fossil fuels is: b) Burning fossil fuels adds carbon compounds to all Earth systems.

When fossil fuels, such as coal, oil, and natural gas, are burned, carbon that has been stored in these fuels for millions of years is released into the atmosphere as carbon dioxide and other greenhouse gases. This process significantly increases the amount of carbon compounds in Earth’s systems, including the atmosphere.

The burning of fossil fuels contributes to the increase in atmospheric CO2 levels, which is a major driver of anthropogenic climate change. The additional carbon compounds released from burning fossil fuels disrupt the natural balance of the carbon cycle by adding more carbon to the atmosphere than can be naturally absorbed by Earth’s systems. This leads to an accumulation of greenhouse gases and contributes to global warming and associated climate impacts. While other statements may partially describe the effects of burning fossil fuels on the carbon cycle, option b provides the most accurate and comprehensive summary of the disruption caused by this activity.

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When a piece of hot Copper is added to 50 g of ethanol, causing its temperature to increase from 30ºC to 70ºC, the ethanol absorbs 1228 calories of heat.

To calculate the amount of heat absorbed by the ethanol, we can use the formula:

Heat absorbed = mass × heat capacity × change in temperature

Mass of ethanol = 50 g

Heat capacity of ethanol = 0.614 cal/g °C

Change in temperature = 70°C - 30°C = 40°C

Substituting these values into the formula:

Heat absorbed = 50 g × 0.614 cal/g °C × 40°C

Heat absorbed = 1228 cal

Therefore, the amount of heat absorbed by the ethanol is 1228 calories.

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Explanation:

Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These changes add more greenhouse gases in our atmosphere and this causes climate change.

Answer:

The atomic number is the number of protons in the nucleus of an atom . The number of protons define the identity of an element

Answer:

Wood burning would be a chemical change

Explanation:

You cannot undo the change, since the burn will be permanent.

(Hope this helps! If it does not try specifying)

Answer:

Combination reaction

Explanation:

In Chemistry, elements and compounds are involved in a process called chemical reactions, which are of different types namely: combination, decomposition, double replacement, combustion etc. A combination reaction is that reaction in which two or more substances called the REACTANTS combine together to form a single new substance called the PRODUCT.

In this case, a reaction is depicted as follows:

2SO2(g) + O2(g) --> 2SO3(g)

In this reaction, compound SO2 combines chemically with element O2 to form a single new compound SO3. Hence, this is a type of COMBINATION REACTION.

Calorimetry is the scientific study of the transformation of heat energy. A calorimeter is a device that is used to conduct these types of experiments. It is used to determine the heat transfer that occurs between two bodies that are at different temperatures.In the given problem, a piece of gold with a mass of 15.23 g and an initial temperature of 54 °C was dropped into a calorimeter that contains 28 g of water.

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Answer:

1. physical change

2. chemical change

3. physical change

4. physical change

5. physical change

6. chemical change

7. chemical change?

8. physical change

1. chemical property

2. physical property

3. chemical property

4. physical property

5. chemical property

6. chemical property

7. physical property

8. physical property

9. chemical property

10. physical property

11. chemical property

12. chemical property

13. physical property

Explanation:

pH is an important parameter in aquatic environments, and the relationship between pH and the mortality of minnows is a complex one.

Minnows are sensitive to pH, and changes in pH can cause mortality in these fish.

pH is a measure of the acidity or alkalinity of a solution. It is measured on a scale of 0 to 14, with 7 being neutral, values below 7 are acidic, and values above 7 are alkaline. Fish in freshwater ecosystems are sensitive to changes in pH, and changes in pH can cause mortality in these fish.

Minnows are among the fish species that are sensitive to pH changes and can die if pH conditions become too extreme.

Relationship between pH and mortality of minnows:

Minnows are more sensitive to acidic pH than alkaline pH. When the pH of water becomes too acidic, the fish may experience respiratory distress, which can lead to death.

Minnows can also die in water with alkaline pH, but this usually occurs at much higher pH levels. At high pH levels, fish can experience osmoregulatory failure and may not be able to maintain their internal balance. This can lead to death.

The ideal pH range for minnows is between 6.5 and 7.5, and maintaining the pH within this range is important for their survival. Changes in pH can occur due to a variety of factors, including acid rain, pollution, and changes in temperature.

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The laboratory that must have an effluent decontamination system to inactivate liquid wastes is BSL4 (Biosafety Level 4). BSL4 laboratories handle highly dangerous and exotic pathogens that pose a high risk of transmission and have no known treatment or vaccines. The effluent decontamination system is necessary in BSL4 labs to ensure that liquid wastes containing these pathogens are properly treated and inactivated before being discharged from the facility, minimizing the risk of environmental contamination and ensuring public safety.

Liquid is a chemical substance whose nature or form is in the form of a liquid substance. Therefore, every liquid substance will be included in the category of liquid substance form and is denoted or symbolized by the letter (l).

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The balanced chemical equation for the reaction of ammonia with water to form the ammonium ion and hydroxide ion is: NH3 (aq) + H2O (l) → NH4+ (aq) + OH- (aq)

In this equation, NH3 represents ammonia in an aqueous solution, H2O represents water, NH4+ represents the ammonium ion, and OH- represents the hydroxide ion. The state symbols (aq) represent aqueous solutions, (l) represents liquid. This process is called ammonium hydroxide and this reaction is an equilibrium reaction and the position of equilibrium is towards the right side, that's why it's considered as a weak electrolyte. The reaction is exothermic, and the NH3 molecule is the Bronsted-Lowry acid and the H2O molecule is a Bronsted-Lowry base, this reaction is an acid-base reaction.

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Answer:

below

Explanation:

Calculating the number of particles

1. The number of particles in a substance can be calculated using:

2. Number of particles = Avogadro constant × the amount of substance in mol.

3. Calculate the number of water molecules in 0.5 mol of water.

4. Number of water molecules = Avogadro constant x amount of substance in mol.