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Verizon [17]
3 years ago
7

Perform the following calculation and report the answer with the correct number of significant figures.

Chemistry
1 answer:
jarptica [38.1K]3 years ago
8 0

Answer:

4.40 X 8.0 =35.2

Explanation:

multiply it

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PLS HELP!!! Science
Gekata [30.6K]
The answer would be
C) To reduce destruction by providing early warning of severe weather

This can help us because then we can plan our day-to-day activities better and can definitely help keep us out of danger.

7 0
3 years ago
Gasoline has a density of 0.7197 grams per milliliter. Calculate the mass, in grams, of a sample of gasoline with a volume of 48
barxatty [35]

Answer:

34.9103 or 34.9 g

Explanation:

Remember Density is a broken heart: m/v.

In this scenario (Let x = # of grams in the sample of gasoline),

D = 0.7198 g/mL = x g / 48.5 mL

So,

(0.7198 g/mL) * (48.5 mL) = x g

x g = 34.9103 = 34.9 g (Accounting for Significant Figures)

8 0
2 years ago
_____________ is a common and tasty compound made up of the elements carbon, hydrogen, and oxygen
ziro4ka [17]

Answer:

Glucose

Explanation:

Glucose, also called dextrose is one of a group of carbohydrates known as simple sugars or monosaccharides. Glucose is derived from the Greek word 'glykys' meaning “sweet”. It has the molecular formula C6H12O6. It is commonly found in fruits and honey and is the major free sugar circulating in the blood of higher animals. It is the source of energy in cell function, and the regulation of its metabolism is of great importance. Molecules of starch, the major energy-reserve of carbohydrate of plants, consist of thousands of linear glucose units. Another major compound composed of glucose is cellulose, which is also linear. Dextrose is the molecule D-glucose.

Glucose is composed of carbon hydrogen and oxygen in a ratio of 1:2:1 as typified by its formula. It is known for its sweet taste. It can be combined with fructose in table sugar.

8 0
3 years ago
If 9.0g of water contain 1.0 g of hydrogen what mass of oxygen is contained in 36 g of water
Mazyrski [523]
9/1 ratio so 9:1=36:x
X is your hydrogen in the 36g sample. To find the mass of Oxygen you subtract the mass of hydrogen from the total.
4 grams H
36-4=32 g h2o
4 0
3 years ago
What are the 3 common gases that give off reactions?
Serjik [45]

The 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.

<h3>What are off reactions</h3>

Off reactions are defined as chemical reactions that occurs when something burns or during combustion of materials which gives off energy.

Some gases that give off reaction are:

  1. Hydrogen sulfide
  2. Carbon monoxide
  3. Nitrogen oxides

Note that these gases are mostly poisonous.

Therefore, the 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.

Learn more about off reactions here:

brainly.com/question/16416932

#SPJ12

3 0
2 years ago
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