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Crazy boy [7]
3 years ago
12

Vinegar and baking soda are mixed together in a beaker. A thermometer is used to determine the temperature before and after the

reaction. If the temperature of the solution decreased, what kind of reaction took place?
Biology
2 answers:
Sophie [7]3 years ago
8 0

Answer:

endothermic reaction

Explanation:

Endothermic reactions involve heat energy from the surrounding thus decreasing the temperature.

valentina_108 [34]3 years ago
4 0

Endothermic change

Explanation:

Enthalpy changes are heat changes accompanying physical and chemical changes. There are two types of enthalpy changes: Endothermic change and exothermic change.

In an endothermic change, heat is absorbed from the surround and hence the surrounding becomes colder at the end of the change.

A change that leaves the reaction colder is an endothermic change.

Learn more:

Exothermic change brainly.com/question/10567109

#learnwithBrainly

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Each of two parents has the genotype green divided by brown​, which consists of the pair of alleles that determine eye color​, a
Liula [17]

Answer:

A)BB-Bg-Bg-GG

B)The probability is 25%

C)The probability is 75%

Explanation:

In order to solve this you just have to create a punnet square, where the parents are shown to both have brown and green coloured eyes genes, so it would be like this:

               Mother:      Brown                                 Green

Father↓  

Brown                      Brown-Brown                 Brown-Green

Green                      Brown-Green                  Green-Green

As the instructions say that if any kid had one green allele that would be the dominant, only the Brown-Brown will show the fenotype, so there´s 1/4 chance to happen, or 25%, the other probability of having green eyes is 3/4 or 75%

8 0
3 years ago
What is representative sample
Rina8888 [55]

Answer: A group that closet matches characteristics

Explanation:

A representative sample is a group that closely matches the characteristics of its population as a whole. In other words, the sample is a fairly accurate reflection of the population from which the sample is drawn.

4 0
4 years ago
(ii) Fish use their gills as a gas exchange surface.
maks197457 [2]
Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
4 0
3 years ago
Choose the law that BEST explains the example:
german

Answer:

3rd law

Explanation:

First law of Newtons :

 Newton's First Law states that, unless an external force acts on it, an object will remain in a straight line in rest or uniform motion.  

The second law of Newtons :

The second law states that an object's acceleration depends on two variables-the net force that acts on the object and the object's mass.

The change in the linear momentum of the object is equal to the force.

Third law of Newtons :

This law states that every action has its reaction with the same magnitude but in the opposite direction.

When we push the wall , then the wall does not move because the wall is fixed but we skid opposite to the direction of applied force because wall offers an opposite force on our body.

Therefore the answer is "third law".

5 0
4 years ago
Read 2 more answers
Which imaging techniques does not collect information about brain functioning
Dahasolnce [82]
There are various imaging techniques in collecting information about the brain and its adjacent structures. To enumerate, there are the cranial ultrasound (for children with cranial sutures that are not closed yet), cranial CT-scan, cranial MRI, brain PET scan, and cranial functional MRI. Only the brain PET scan and cranial functional MRI can collect information about the brain function by detecting fluorodeoxyglucose (FDG) in the brain as this lights up in functional areas of the brain in PET scan; and by detecting brain activity through changes in blood flow in cranial functional MRI. 

<em>While it is not an imaging technique, electroencephalogram or EEG can detect brain function.</em>
6 0
3 years ago
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