Based on the physical appearance of the two crystal samples, which is a metal?

Explanation:

Obviously there's an exothermic reaction going on, which suggests a neutralisation reaction. A dark blue precipitate is formed, which could be a copper salt. So a new substance formed.

There is undoubtedly an exothermic reaction occurring, which denotes a neutralization reaction. A dark blue precipitate that could be a copper salt forms. Thus, a new material developed.

The average kinetic energy of the molecules rises as the reactants heat up. This indicates that more molecules are traveling more quickly and colliding more forcefully. The pace of the reaction rises as more molecules collide with one another with sufficient energy to cause a reaction.

Usually, a reaction's rate increases as temperature rises. As a result, a higher percentage of molecules will possess the minimal amount of energy required for a successful collision.

Endothermic reactions occur when two substances interact and the temperature of the resulting mixture drops.

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Answer: Measures the amount of space occupied by an object

Equals the displacement of an object in water Lacks physical dimension Can be measured in milliliters or cubic centimeters

Explanation:

The statements which are true about volume are;

Discussion:

The volume of an object is a measure of the space it occupies. On this basis is the definition of matter as an object that occupies space.

Additionally, when an object is immersed in water; it's volume equals the volume occupied by the water displaced by it.

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Answer: Because hydrogen is a gas.

Explanation: If children were running around with balloons filled with hydrogen gas, then they would catch fire. So the answer to your question is, its simply dangerous.

Answer:element x

Explanation:because element x is shiny and hard and that's a property of metals and metals are good conductors of heat and electricity

Answer:

Dominant traits are traits that more likely to be transferred from a parent to an offspring so scientist use this term dominant.

Answer:

Scientists use the word dominant for certain traits because they are more likely to show up. There are two different types of alleles for traits: dominant and recessive. Capital letters mean dominant and lowercase mean recessive. Scientists also use the word dominant for certain traits when certain traits stand out and are more prone to show up in offspring.

Answer:

5.12x10¹¹ millimeters

Explanation:

Milli is a prefix used in science and engineering to decribe the number as the exponent x10⁻³. In the prefix kilo, the number is at the exponent x10³.

5.12x10⁵ kilometers are:

5.12x10⁵ kilometers * (1000m / 1km) = 5.12x10⁸ meters

5.12x10² meters * (1m / 1000millimeters) = 5.12x10¹¹ millimeters

Explanation:

proton ..............

Answer:

liters

Explanation:

the answer is liters after searching and searching and searching i found it now i winnnn

Answer:

LITERS (B)

Explanation:

Answer:

Hypothesis, Prediction, Experiment, Analyze Data, and Draw a Conclusion.

Explanation:

Answer:

Experiments

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Answer:

experiments

Explanation:

...

Answer:

A significant quantity of natural benzaldehyde is produced from cinnamaldehyde obtained from cassia oil by the retro-aldol reaction: the cinnamaldehyde is heated in an aqueous/alcoholic solution between 90 °C and 150 °C with a base (most commonly sodium carbonate or bicarbonate) for 5 to 80 hours, followed by ...

Explanation:

The answer is System.

When a scientific investigation is in progress, its used to perform and understand the natural phenomenon that goes on using the scientific method. Since this is a descriptive investigation, it provides a descriptive account of any system by looking at it without any prior knowledge to that subject. This method of investigation does not use a hypothesis. Thus, proves our answer correct.

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Answer:

The answer is System.

Explanation:

When a scientific investigation is in progress, its used to perform and understand the natural phenomenon that goes on using the scientific method. Since this is a descriptive investigation, it provides a descriptive account of any system by looking at it without any prior knowledge to that subject. This method of investigation does not use a hypothesis. Thus, proves our answer correct.

Answer:

The answer is False.

Explanation:

To find which is the highest temperature we need to convert the °C and °F units to °C:

[tex] T_{1} = 100 K [/tex]

[tex] T_{2} = 100 ^{\circ} C + 273 = 373 K [/tex]

[tex] T_{3} = \frac{5}{9}*(100 ^{\circ} F - 32) = 37.78 ^{\circ} C [/tex]

[tex] T_{3} = 37.78 ^{\circ} C + 273 = 310.78 K [/tex]

Therefore, the answer is False, since the highest temperature is 100 °C.

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Answer:

The answer is False, or ¨F¨.

All we need to do is add.

45.1 + 33.46 = 1509.046

Therefore, the total weight of both objects is 1,509.046kg

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Answer:

7

Explanation:

2.524g(5.1)(106)g

(6.85)(103)g

=

1364.4744g2

705.55g

=

1364.4744g

705.55

=

1364.4744g

705.55

=1.933916g

Answer:

2

Explanation:

YES

Answer:

steam.

Explanation:

Gasses have the most kinetic energy compared to liquids and solids.

steam is the gaseous form of h2o

water is the liquid form and ice is the solid

Answer:

The sum of given measurements is 1007 L.

Explanation:

The given measurements are 28 L, 42 L, 6 L, and 931 L.

We need to find the total of these measurements.

Total = 28 L + 42 L + 6 L + 931 L

It can be written as

Total = ( 28 +42+6+931)

One simplification we get Total = 1007 L

Answer:

It will take 6,519.44 hours to empty the reservoir.

Explanation:

First of all, you should know that 1 gallon = 3.785 L

So, you can apply the following rule of three to know the amount of water in liters in the reservoir: if 1 gallon is 3.785 liters, 1.0500 * 10⁶ gallons of water, how many liters are they?

[tex]amount=\frac{1.0500*10^{6} gallons*3.785 liters}{1 gallon}[/tex]

amount= 3,974,250 liters

Knowing that water is pumped out of a reservoir at a rate of 2.54 liters every 15.0 seconds, you now want to pump 3,974,250 liters of water out of the reservoir. For that you apply the following rule of three: if 2.54 liters are pumped out every 15 seconds, how long does 3,974,250 liters take to be pumped out?

[tex]time=\frac{3,974,250 liters*15 seconds}{2.54 liters}[/tex]

time= 23,469,980.32 seconds

With 1 hour 60 minutes and 1 minute equal to 60 seconds, then 1 hour represents 3,600 seconds. So you apply the following rule of three: if 3,600 seconds is 1 hour, 23,469,980.32 seconds, how many hours are they?

[tex]time=\frac{23,469,980.32 seconds*1 hour}{3600 seconds}[/tex]

time=6,519.44 hours

It will take 6,519.44 hours to empty the reservoir.

Answer:

14

Explanation:

Answer:

symbol= F

proton= 9

neutron= 19 I understand this is it ok for you

.Explanation: ..............

The answer is same atomic number!