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2 years ago

Most chemical reactions take place in labs true or false

Chemistry

2 answers:

arsen [322]2 years ago

7 0

The answer would most likely be False

Vlada [557]2 years ago

3 0

False, chemical reactions can occur anywhere and anytime, most likely the majority are out of a lab.

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If two objects have the same mass, what must be true? choose the correct answer A. They have the same volume B. They are made of

Nataly_w [17]

C. Mass is kind of like a measurement of matter.

7 0

3 years ago

Read 2 more answers

Help help help help help help

natita [175]

Hey,

Answer:

AgCl (Silver Chloride)

Explanation:

sodium chloride + silver nitrate → sodium nitrate+ silver chloride

Hope it helps :)

Have a great day!

3 0

2 years ago

In general how are word equations written to describe chemical equations

Alexus [3.1K]

chemicals reacting are written on the left, what is formed is written on the right after the = sign

eg Copper + oxygen = copper oxide.
Hope this helps , mark as brainliest and say thanks THANKS..

5 0

2 years ago

Consider the nuclear equation below. Superscript 235 subscript 92 upper U right arrow superscript 4 subscript 2 upper H e. What

coldgirl [10]

Answer:

$\rm_{90}^{231}\text{Th}$

Explanation:

The unbalanced nuclear equation is

$\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} + X$

Let's write X as a nuclear symbol.

$\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} + _{Z}^{A}\text{X}$

The main point to remember in balancing nuclear equations is that the sums of the superscripts and of the subscripts must be the same on each side of the reaction arrow.

Then

235 = 4 + A , so A = 235 - 4 = 231, and

92 = 2 + Z , so Z = 92 - 2 = 90

And your nuclear equation becomes

$\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} +\, _{90}^{231}\text{X}$

Element 90 is thorium, so

$\rm X = _{90}^{231}\text{Th}$

7 0

3 years ago

The limiting reactant in a reaction a. is the reactant for which there is the least amount in grams b. is the reactant which has

Shalnov [3]

Actually the correct answer must be:

The limiting reactant in the reaction is the one which has the lowest ratio of moles available over coefficient in the balanced equation

This is because the actual mass or number of moles of the reactant does not directly dictate if it is a limiting reactant, this must be relative to the other reactants.

So the answer is:

e. none of the above

5 0

2 years ago