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3 years ago

Research Question: What is the relationship between honeybees and the agricultural economy?

Chemistry

1 answer:

uysha [10]3 years ago

8 0

Answer:

Honeybees are responsible for pollinating agricultural crops that make up one-third of our diet, including fruits and vegetables. ... Honeybees are essential for agricultural pollination because they can be housed in colonies, transported to fields at the right time to pollinate flowers, and released.

Honeybees are responsible for pollinating agriculture cops. These crops make up 1/3 of of our diets. Honeybees are essentail and we can use them to poolinate our crops.

Explanation:

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5 uL of a solution is equal to<br> how many nanoliters?

Ksju [112]

Answer:

5000 nL

Explanation:

4 0

3 years ago

Read 2 more answers

What is the electron configuration for potassium (K)?

Bond [772]

Answer:

1s2 2s2 2p6 3s2 3p6 4s1

Explanation:

Aufbau's principal of the arrangement of electronic configuration states that, electrons fill orbitals of lower energy first before the higher energy. 1s2 2s2 2p6 3s2 3p6 4s2 3d10...

This arrangement explains the Aufbau's principal, hence, or therefore, the 1s2 2s2 2p6 3s2 3p6 4s1 is the right answer for the representation of the electron configuration for potassium (K).

hope this was helpful!

3 0

3 years ago

A chemist carefully measures the amount of heat needed to raise the temperature of a 894.0 g sample of a pure substance from -5.

ValentinkaMS [17]

Answer : The specific heat of substance is $0.235J/g^oC$

Explanation :

Formula used :

$Q=m\times c\times \Delta T$

or,

$Q=m\times c\times (T_2-T_1)$

where,

Q = heat needed = 4.90 kJ = 4900 J

m = mass of sample = 894.0 g

c = specific heat of substance = ?

$T_1$ = initial temperature = $-5.8^oC$

$T_2$ = final temperature = $17.5^oC$

Now put all the given value in the above formula, we get:

$4900J=894.0g\times c\times [17.5-(-5.8)]^oC$

$c=0.235J/g^oC$

Therefore, the specific heat of substance is $0.235J/g^oC$

4 0

3 years ago

Define physical and chemical properties, provide three examples of each, discuss their reversibility, and explain the fundamenta

MakcuM [25]

Answer:

Physical properties are defined as the properties which can be observed without changing its chemical composition. For example: color, volume, and molecular weight. Chemical properties are defined as the properties which can be observed only after changing chemical identity of the substance.

<h3>Mark me a brainlist</h3>

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3 years ago

A sample of gas initially has a volume of 1.42 L at 293 K and 1.30 atm. What volume will the sample have if the pressure changes

34kurt

1.35 litres is the volume will the sample have if the pressure changes to 1.50 atm while the temperature is increased to 322 K.

Explanation:

Data given:

initial volume in the sample pf gas V1 = 1.42 L

initial temperature of the sample of gas T1 = 293 K

Initial pressure of the gas P1 = 1.30 atm

final pressure of the sample of gas P2= 1.50 atm