Please help me with this Science Worksheet

Chemistry

1 answer:

s2008m [1.1K]3 years ago

4 0

I’m not 100% sure on the physical one but this is what I think

Physical
1- sunlight
2- sparks
3- burns
4- wood
5- light

Chemical
6- heat
7- ice
8- water
9- evaporates
10- vaper

Hope this helps :)

You might be interested in

A microwave works by focusing microwave light on the food inside of it. Which type of energy transformation takes place in a mic

nasty-shy [4]

Answer:

C is the answer

Explanation:

Heat energy is transformed into electrical energy.

3 0

3 years ago

Read 2 more answers

A student made the Lewis dot diagram of a compound as shown. Mg is written with two dots shown on its top. Cl is written on the

blsea [12.9K]

Answer:

The dots were not properly located and arrows are not used in Lewis structures

Explanation:

If we intend to write a Lewis structure for a compound, that lewis structure must consist of only dots. These dots actually show the valence electrons on the outermost shell of the molecule.

We do not involve arrows when writing dot electron structures for compounds. The valence electrons of magnesium ought not to be written together because they are not a lone pair, rather they are two unpaired electrons. The use of an arrow suggests a coordinate covalent bond which is not the case here.

The correct lewis structure for MgCl2 is shown in the image attached to this answer.

7 0

3 years ago

What would changing the number of electrons in a atom change

aksik [14]

Answer:

The mass of the atom will change

Explanation:

The mass of the atom will alter if the changing the amount of electrons in an atom charge would result in being positively or negatively charged (Correct me if I'm incorrect sorry If I got this wrong)

3 0

3 years ago

What is a compound in chemistry

erica [24]

Explanation:

Chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. methane moleculeMethane, in which four hydrogen atoms are bound to a single carbon atom, is an example of a basic chemical compound.....

Hope it helps..

8 0

3 years ago

Why is it that the north star is the only star in the night sky that seems to stay still

Masja [62]

I think it is because it is directly about the north or south pole (I forget) so while all the other stars seem to rotate around because the Earth is rotating but the North Star is directly in the center. Don't take my word though.

8 0

4 years ago