All categories

3 years ago

4.87 x 103 + 1.092 x 107 =

Chemistry

2 answers:

PolarNik [594]3 years ago

6 0

618.454. I just did the equation in a character oops.

White raven [17]3 years ago

6 0

You can cut it up into smaller parts and answer it:

(4.87x103) + (1.092x107) =

(501.61) + (116.844) =

618.454

You might be interested in

What two elements are present in the compounds in the last two rows of table 4

castortr0y [4]

Answer:could u expand on the question

Explanation:

8 0

2 years ago

What are molecules, and how are the properties of molecules different from the atoms they come from? Give an example.

goldenfox [79]

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

While Atoms are single neutral particles,

Molecules are neutral particles made of two or more atoms bonded together.

Exaplmes for molecules

H2O (water)

N2 (nitrogen)

O3 (ozone)

CaO (calcium oxide)

C6H12O6 (glucose, a type of sugar)

NaCl (table salt

And examples for atoms

Neon (Ne)

Hydrogen (H)

Argon (Ar)

Iron (Fe)

Calcium (Ca)

Deuterium, an isotope of hydrogen that has one proton and one neutron.

Plutonium (Pu)

F-, a fluorine anion.

3 0

3 years ago

What is the name of Se2Cl7?

Monica [59]

Answer:

diselenium heptachloride

Explanation:

Se2Cl7

Se = selenium

Cl = chlorine

Don't forget the "-ide"

Diselenium heptachloride

4 0

3 years ago

What two properties affect the<br> density of ocean water?

mihalych1998 [28]

Answer: temperature and salinity.

Explanation:

5 0

2 years ago

Some people must eat a low-sodium diet with no more than 2,000 mg of sodium per day. By eating 1 cracker, 1 pretzel, and 1 cooki

Leni [432]

Answer:

The amount of sodium is 32 mg per cracker, 49 mg per pretzel and 68 mg per cookie.

Explanation:

Let's assume amount of sodium is x mg per cracker, y mg per pretzel and z mg per cookie.

So, the following three equations can be written as per given information:

x+y+z = 149 ........(1)

8y+8z = 936 ........(2)

6x+7y = 535 .........(3)

From equation- (2), y+z = $\frac{936}{8}$ = 117

By substituting the value of (y+z) in equation- (1) we get,

x = 149-(y+z) = 149-117 = 32

By substituting the value of x into equation- (3) we get,

y = $\frac{535-(6\times 32)}{7}$ = 49

By substituting the value of y into equation- (2) we get,

z = (117-49) = 68

So, the amount of sodium is 32 mg per cracker, 49 mg per pretzel and 68 mg per cookie.

6 0

3 years ago