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hammer [34]
3 years ago
6

Hecking skills activated

Chemistry
2 answers:
artcher [175]3 years ago
7 0

Answer:

yes 34

Explanation:

4/13 =0.307

diamong [38]3 years ago
6 0

Answer:

What a cute animal!

Explanation:

Well am sorry it isn't very familiar to me

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If the amount of atoms of each type on the left and right sides of a reaction differ, what must be done to balance it?
REY [17]
I think it's letter:
B.Coefficients are placed in front of the reactants and/or products
6 0
3 years ago
C3H2 + 502 + 3 CO2 + 4H20
nordsb [41]

Answer: 6.2 moles

Explanation:

C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g)

The balanced equation above shows the combustion of propane, C3H8 in oxygen, O2 to yield carbon dioxide, CO2 and water, H2O

The mole ratio of combustion are as follows:

1 mole of C3H8 react to produce 4 moles of H2O

1.55 mole of C3H8 will react to produce Z moles of H2O

To get the value of Z, cross multiply

Z x 1 mole = 1.55 mole x 4 mole

Z = 6.2 moles

Thus, 6.2 moles of water will be produced from 1.55 moles of propane

6 0
4 years ago
How many moles are in 2.10 grams of KCr(SO4)2 • 12H2O
mart [117]

Answer:

42996.19989

Explanation:

Molar mass of KCr(SO4)2 12h2o is 20474.3809 g/mol x 2.1 = 42996.19989

8 0
4 years ago
The lengthening of a transmitted signal's wavelength and/or a decrease in its frequency, which indicates that the object is movi
Alla [95]

B

Relative to the observer, the objected, emitting visible light will appear red in color because the wavelength of light is stretched hence acquiring longer wavelength in the visible electromagnetic spectrum (remember red light has the longest wavelength in the visible light spectrum).

Explanation:

Conversely, if the object was moving towards the observer, it would appear blue in color (blue shift) because the relative wavelength of the visible light would be ‘compressed’ (remember this is always relative to the observer) hence the wavelength would be shorter (and blue light has the shortest wavelength in the visible light spectrum).

Both these phenomenons are classified under Doppler shift effect of waves. It also occurs in our daily lives. When a wailing ambulance approaches you, the pitch of the wailing sounds is higher (relative to you). However, when the ambulance passes you and begins stretching away from you, the pitch of the wailing goes low.

Learn More:

For more on Doppler shift effect check out;

brainly.com/question/3841958

#LearnWithBrainly

4 0
3 years ago
Read 2 more answers
When Rutherford performed his experiment, only 1 in 20,000 alpha particles bounced straight back or were
Anna007 [38]

Answer:

when rutherford performed his experiment, only 1 in 20,000 alpha particles bounced straight back or were deflected greatly. the rest went straight through the gold foil. e) based on this evidence, what is in atom's center? positively charged particles.

Explanation:

7 0
3 years ago
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