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svp [43]
4 years ago
7

Calculate the mass of oxygen needed to react 10.0g of calcium to form calcium oxide.

Chemistry
1 answer:
Ber [7]4 years ago
5 0

Answer:25

Explanation:

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What is made up of only one type of molecule
hjlf

Answer:

one molecule is made up of one type of molecule

Explanation:if it is one molecule it has to me made of other atoms and not of other molecules

7 0
3 years ago
Which of the following is/are true concerning a chemical reaction at equilibrium? 1. The system will be a mixture of reactant an
maks197457 [2]

Answer: Option (e) is the correct answer.

Explanation:

An equilibrium reaction is defined as the reaction where rate of forward reaction will be equal to the rate of backward reaction.

For example, N_{2}(g) + 3H_{2}(g) \rightleftharpoons 2NH_{3}(g)

So, here amount of reactants that is, nitrogen gas and hydrogen gas  will be constant along with constant amount of formation of product that is, ammonia here.

In an equilibrium reaction there is presence of both reactants and products and hence, both reactants and products constitute the system.

Thus, we can conclude that all the given statements are true.

5 0
3 years ago
Can anybody help??
kvv77 [185]

The amount of heat energy added to silver to heat it from 25°C to 100°C is :

8737.5 J

<u>Given data: </u>

mass of silver ( m ) = 500 g

T1 = 25°C

T2 = 100°C

s ( specific heat of silver ) = 0.233 J/g.c

<h3 /><h3>Determine the amount of heat required </h3>

Applying the formula below for heat ( Q )

Q = ms * ΔT

   = 500 * 0.233 * ( 100 - 25 )

   = 8737.5 J

Hence we can conclude that the The amount of heat energy added to silver to heat it from 25°C to 100°C is :  8737.5 J.

Learn more about heat energy : brainly.com/question/13439286

5 0
3 years ago
Never mind wrong question
Leokris [45]
Its okay my friend. you dont need to over stress it.
7 0
3 years ago
Read 2 more answers
that B) My color is sickle: I have a drop of water in my body when I was given heat, white powder was formed So who am i Lets id
kramer

Explanation:

i don't understood your question ⁉️

and what do u mean by my color is sickle

8 0
3 years ago
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