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Aleksandr-060686 [28]
3 years ago
8

What are some chemical changes in oxygen?

Chemistry
1 answer:
Zinaida [17]3 years ago
4 0

the oxidation reaction between oxygen and sodium produces sodium oxide. In many cases, an element may form more than one oxide.

Explanation:

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If you know the answer just answer it please :)
guapka [62]

Answer:

an apple resting on the teacher’s desk

Explanation:

I asked googole for an example and it gave me car resting on top of a hill so i figured it would be the apple

4 0
3 years ago
A package contains 1.33 lb of ground round. If there’s 29% fat, how many grams of fat are in the round?
OlgaM077 [116]

The answer is: 175 grams of fat are in the round.

m(ground round) = 1.33 ib.

First convert ib (pounds) to g (grams):

1 pound (lb) is equal to 453.592 grams (g).  

m(ground round) = 1.33 ib · 453.592 g/ib.

m(ground round) = 603.28 g.

ω(fat) = 29% ÷ 100%.

ω(fat) = 0.29; mass percentage of fat.

m(fat) = ω(fat) · m(ground round).

m(fat) = 0.29 · 603.28 g.

m(fat) = 175 g; mass of fat.

3 0
4 years ago
Determine the chemical formula of each compound and then use it to calculate the mass percent composition of each constituent el
algol [13]
For example
Na2CO3
[na=23 o=16c=12]
2x23+12
+16x3
46+12+48
106
%comp of Na=46/110x106=44%
%comp of C =12/110x106=12%
% comp o O=48/110x106= 46%
5 0
4 years ago
Which change would increase the pressure exerted by a gas?
Gelneren [198K]

Answer:

C - raising the temperature of a gas

Explanation:

as you raise temperature, kinetic energy rises, and so does pressure

7 0
3 years ago
Select all of the elements that are classified as metals.
ASHA 777 [7]

Answer:

Gold, sodium, aluminum

Explanation:

The metals are located on the left side of the periodic table

4 0
3 years ago
Read 2 more answers
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