3 years ago

Which is an expression? A. 1 = 3 - 2 B. 2 + 5 = 5 + 2 C. 4+ 3 < 9 D. 26

Chemistry

2 answers:

Helga [31]3 years ago

3 0

Answer:

A. 1 = 3 - 2

Explanation:

What defines an expression?

expression - An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division.

So if we look at the letter options we can see that A is the best choice.

hram777 [196]3 years ago

3 0

A

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553.5 mL ?:cm^3<br> how do i get my answer? and what is the answer?

dmitriy555 [2]

Answer:

553.5 cm3

Reason:

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6 0

3 years ago

Give the answer to the problem below using the correct number of significant digits. (1.3 x 103) x (5.724 x 104)

Gemiola [76]

(133.9) x (595.296)= 79,710.1344
Answer with significant digits: 80,000
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6 0

4 years ago

Read 2 more answers

In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.68 moles of Mg react with 3.56 moles of I₂, and 1.76 moles of MgI₂ form, what

melomori [17]

Answer:

$Y=65.7\%$

Explanation:

Hello,

In this case, for the given chemical reaction, we first identify the limiting reactant by noticing that due to the 1:1 mole ratio for magnesium to iodine the reacting moles must the same, nevertheless, there are only 2.68 moles of magnesium versus 3.56 moles of iodine, for that reason, magnesium is the limiting reactant, so the theoretical turns out:

$n_{MgI_2}^{theoretical}=2.68molMg*\frac{1molMgI_2}{1molMg} =2.68molMgI_2$