Ask question

Ask question

All categories

3 years ago

6

Question 5 What law states that energy can neither be created nor destroyed, but it is transformed? Question 5 options: Law of T

hermonuclear Energy Law of Kinetic Energy Law of Conservation of Energy Law of Thermal Energy

2 answers:

masya89 [10]3 years ago

3 0

It is the law of conservation of energy

zloy xaker [14]3 years ago

3 0

The answer is: LAW OF CONSERVATION OF ENERGY

Hope this helps!! :)

You might be interested in

5. A football field is about 100 meters long. If it takes a person 20 seconds to run its length, how fast (what speed) were they

EleoNora [17]

Answer:

Speed, v = 5 m/s

Explanation:

The length of the football field, l = 100 m

the person takes 20 seconds to run its length

v=

t

d

v=

20 s

100 m

v=5 m/s

7 0

3 years ago

Calculate how many moles of element Q are in 23.53 g of element Q.

pogonyaev

Answer:

0.579 moles

Explanation:

Moles = 23.53/40.64

= 0.5789 moles

7 0

3 years ago

8moles of Na2Cr2O2 is how much mass

Margaret [11]

$\boxed{\boxed{\mathfrak{ 1\: mole \:of \:Na_2Cr_2O_2\: = \:it's \:Gram\: Mol. \: mass}} }$

$\underline{ \mathfrak{ Gram \:molecular \:mass \:of \: \red{ Na_2Cr_2O_2}}}$

= 2 × 23 + 2 × 52 + 2 × 16

= 182 grams

1 mole of $Na_2Cr_2O_2$ weighs = 182 g

8 moles weigh = 8× 182

= $\mathfrak{\blue {\boxed{\underline {1456 \: grams}}}}$

or

$\mathfrak{\blue {\boxed{\underline {1. 46 \:kg }}}}$

5 0

3 years ago

3. You are asked to prepare an aqueous solution. What would be a better choice for a solute potassium nitrate or

liubo4ka [24]

Answer:

i do not knowwww

Explanation:

8 0

3 years ago

What is the difference between chemical and physical change with respect

kozerog [31]

Answer:

Physical changes are changes that do not alter the identity of a substance. Chemical changes are changes that occur when one substance is turned into another substance.

Explanation:

5 0

3 years ago

Read 2 more answers