2 years ago

T or F? Sometimes energy is lost during a chemical reaction.

Chemistry

2 answers:

netineya [11]2 years ago

8 0

Answer:

True.

Energy can be sometimes lost in chemical reactions.

Explanation:

amid [387]2 years ago

6 0

Answer: True.

Explanation:

You might be interested in

Which substance cannot be separated physically or chemically? a solution an element a compound a mixture

Katena32 [7]

Answer:

An element

Explanation:

Elements are not able to be separated, but everything else can, whether that be physically or chemically.

8 0

2 years ago

Read 2 more answers

If the molecule C6H12 does not contain a double bond, and there are no branches in it, what will its structure look like?

NARA [144]

I have attached a photo of the structure.
You can get better at solving problems like this by practicing a lot!

5 0

3 years ago

I need help with this question

VARVARA [1.3K]

Answer:

2.25×10¯³ mm.

Explanation:

From the question given above, we obtained the following information:

Diameter in micrometer = 2.25 μm

Diameter in millimetre (mm) =?

Next we shall convert 2.25 μm to metre (m). This can be obtained as follow:

1 μm = 1×10¯⁶ m

Therefore,

2.25 μm = 2.25 μm / 1 μm × 1×10¯⁶ m

2.25 μm = 2.25×10¯⁶ m

Finally, we shall convert 2.25×10¯⁶ m to millimetre (mm) as follow:

1 m = 1000 mm

Therefore,

2.25×10¯⁶ m = 2.25×10¯⁶ m /1 m × 1000 mm

2.25×10¯⁶ m = 2.25×10¯³ mm

Therefore, 2.25 μm is equivalent to 2.25×10¯³ mm.

6 0

3 years ago

A balloon is filled to a volume of 1.50 L with 3.00 mol of gas at 25 C. with pressure and temperature held constant, what will b

bixtya [17]

Answer:

3.2L

Explanation:

PV=nRT

since pressure and temperature are held constant we have V=nR

R is a constant also,

Thus; $\frac{v1}{n1}=\frac{v2}{n2}$

v1=1.5L , n1=3mol, n2=1.4mol

$\frac{1.5}{3}=\frac{v2}{1.4}$

v2= $\frac{1.5}{3}*1.4$

v2=3.2L

7 0

3 years ago

Which diagram illustrates that matter is always conserved during a chemical reaction?

Alika [10]

Answer:

Explanation:

7 0

3 years ago

Read 2 more answers