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Vilka [71]
3 years ago
13

The following is a sample question for brainliest. Brainliest will be given to the person who can answer the following question

with the most details and accuracy. I do have sample answers that I wrote to compare yours too, though answers obviously may vary.
What is Chemistry? (At least one paragraph.)
Chemistry
1 answer:
Amanda [17]3 years ago
8 0

Answer:

Chemistry is the branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change. Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic and Biochemistry. Chemistry is involved in everything we do. The reason why chemistry touches everything we do is because almost everything in existence can be broken down into chemical building blocks.

Explanation:

Hope this helps

You might be interested in
Classify the following compounds as ionic or covalent: a. MgCl2 b. Na2S c. H2O d. H2S
k0ka [10]
MgCl2 is ionic because it is a positive metal bonding with a negative nonmetal. Na2S is ionic for the same reason. H2O and H2S are both covalent because they are two nonmetals bonded together.
4 0
3 years ago
Read 2 more answers
In a double bond, two atoms share a total of _____ electrons. a two b three c four d six
MissTica

Answer:

C: 4

Explanation:

In every single covalent bond, each atom shares one electron. 1 + 1 = 2. A double bond is just two bonds so, 2 x 2 = 4.

3 0
3 years ago
How long it takes a 100 watt light bulb to use 10,000 J of electrical energy?​
vlabodo [156]

Answer:

A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.

Explanation:

Power refers to the amount of work done (or energy consumed) per unit of time. It is usually measured in watts (W), which is equal to 1 Joules per second (\frac{J}{s})

So, by definition, to calculate the power consumed or supplied in a time interval the following expression is used:

P=\frac{W}{t}

where P is the power measured in Watts, W is the work measured in Joules, and t is the time measured in seconds.

In this case:

  • P=100 Watt
  • W= 10,000 J
  • t= ?

Replacing:

100 Watt=\frac{10,000 J}{t}

Solving:

t=\frac{10,000 J}{100 Watt}

t=100 seconds

<u><em> A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.</em></u>

<u><em></em></u>

7 0
3 years ago
Select the objects that hold the same amount of liquid as a 160−fluid-ounce jug. Select all that apply. A four 1−quart bottles B
Finger [1]

B, D and E

Explanation:

conversion factors

1c = 8oz

1pt = 2c

1qt = 2pt

For A and B

ounces to cup  = 160/8 = 20c

cup to pints = 20c / 2c = 10pt

pint to quarts = 10pt/2pt = 5qt  

B applies as four 1-quart and two 1-pt  = 5 1-quart

Considering C

4 8oz = 32oz

160-32 = 128oz /8 = 16c/2 = 8pints C  does not apply

considering D

8 * 8 = 64oz

160 - 64 = 96oz/8 = 12c/2 = 6pt/2 = 3qt

So D applies

E applies

5 0
3 years ago
What is the molarity of a solution prepared by dissolving 8 grams of BaCl2 in enough
olga55 [171]

Answer:

Explanation:

molar mass of BaCl2 = 208.23

mol of BaCl2 = 8/208.22

mol of BaCl2 = 0.03841905

Molarity = 0.03841905/0.450

Molarity = 0.085 M

6 0
2 years ago
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