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Ugo [173]
3 years ago
11

Which statement is true about elements?

Chemistry
2 answers:
vovikov84 [41]3 years ago
8 0

Answer: the answer would be C

Explanation: they combine to form atoms of example 2 hydrogen atoms and 1 oxygen atom would be a water molecule those three atoms are combining to a water molecule

also can i please have branlyest i never had it yet and i have been trying my best

LiRa [457]3 years ago
5 0
A or C are the best options
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what is the change in the velocity of the biker below as he travels from point b to point c ? ..... What is his acceleration fro
Furkat [3]

The change in the velocity = 4 m/s

Acceleration = 4 m/s²

<h3>Further explanation</h3>

Given

vo = initial velocity = 4 m/s

vf = final velocity = 8 m/s

t = 1 s

Required

The change in the velocity

Acceleration

Solution

the change in velocity =

\tt vf-vo=8-4=4~m/s

Acceleration = ratio of a change in velocity and the time

\tt a=\dfrac{\Delta v}{t}= \dfrac{vf-vo}{t}

Input the value :

\tt a=\dfrac{4~m/s}{1~s}=4~m/s^2

7 0
2 years ago
Someone please answer i’ll give you brainly.
lina2011 [118]
Let's hope she didn't watch it without me or i will never be speaking to her again :))
4 0
2 years ago
How many grams will be produced
Anni [7]

Answer:

\Large \boxed{\sf 34.2 \ g}

Explanation:

Mole ratio

9:4

1.75:x

Moles of CO₂

\displaystyle \frac{4 \times 1.75}{9} =0.78

Use formula to find mass

\displaystyle moles=\frac{mass}{M_r}

Relative molecular mass of CO₂ = 12 + 16 × 2 = 44

\displaystyle 0.78=\frac{mass}{44}

mass=34.2

4 0
2 years ago
Chemical formula name for V2(SO2)3 (aq) explain why​
goldenfox [79]

This is the chemical doula for salt which is a polyatomic anion very prevalent in out daily lives e.g.

Salts, acid derivatives, and peroxides of sulfate are widely used in industry.

3 0
3 years ago
Explain why the atomic number is called the fingerprint of element
Dovator [93]

Answer:

No element shares the same atomic number. The atomic number of every element is unique to itself, just like a fingerprint is unique to a human. The atomic number of element allows us to identify it, like how we can identify a person from their fingerprint.

Explanation:

7 0
2 years ago
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