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fiasKO [112]
3 years ago
9

Which of the following describes what a scientist does?​

Chemistry
1 answer:
IRISSAK [1]3 years ago
4 0
Is there a photo that was supposed to be attached to this? If not, scientists gather research and take it into further knowledge.

Observations:

Scientists observe things and use their senses to help observe the world and what’s around us. They use their hearing, touch, and sense of taste to gather observations.

Measurements:

Scientists use measurements by using rulers, scales, thermometers, and many other tools.

Communication:

Scientists also use communication to communicate with others and to share with others about their discovery. They could share this discovery by sharing it in the local news or in a science book.

Different kinds of scientists:

Biologists - Scientists who learn and study about organisms.
Geologists - Scientists who learn and study rocks.
Zoologists - Scientists who learn and study about animals. Most likely animals in the zoo.

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In the formation of potassium chloride, the product, KCl, has less energy than the reactants, K and Cl2. This reaction is .
k0ka [10]

if the product has lesser energy than the reactants it means enthalpy change value is positive.so it is endothermic reaction where the heat is absorbed.so kcl will formation will have positive enthalpy change .

7 0
3 years ago
Liquid molecules also have a strong attraction to one another
cupoosta [38]

Answer:

yes that is true.Because they are ions.oppositely chared ions attract each other

7 0
4 years ago
What is the valency of oxygen??????
valina [46]

Answer:

the valency of oxygen is -2

7 0
3 years ago
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Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what
Bogdan [553]

Answer:-  0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = (\frac{mass of Ag}{mass of alloy})*100

Mass of Ag = 17.6 g

mass of Cu = 2.40 g

mass of alloy = 17.6 g + 2.40 g = 20.0 g

Let's plug in the values in the formula:

mass percentage of Ag = (\frac{17.6}{20.0})*100

mass percentage of Ag = 88%

So, the mass percentage of silver in sterling silver is 88% and in decimal form it is 0.88.

7 0
3 years ago
A piece of ice melts in one’s hand because heat moves from the hand into the ice. This is an example of heat transfer by .
SashulF [63]
Conduction which is a method of heat transfer where heat is transfer directly from one medium to another. 
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4 years ago
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