Which value represents a car speeding to the right?

Chemistry

1 answer:

miss Akunina [59]3 years ago

7 0

Answer:

60 m/s

Explanation:

Meters per second (m/s) is the units for velocity/speed.

The positive magnitude, +60, indicates that the velocity is moving in the right direction.

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Another metal phosphate is cobalt phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net io

ryzh [129]

We are given with
Cobalt phosphate - CoPO4

We are asked for the net ionic equation for the phosphate dissolving in H3O+

The net ionic equation is
CoPO4 (s) + H3O+ (aq) -----> HPO42- (aq) + Co3+ (aq) + H2O *(l)

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3 years ago

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An analysis reveals that a substance consists of 26.7% of carbon, 2.24% of hydrogen and 71.1% of oxygen, If the molar mass of th

exis [7]

the molecular formula is calculated as follows
find the mole of each molecule
that is for carbon = 26.7/12= 2.23 moles
hydrogen= 2.24/1=2.24 moles
oxygen= 71.1/16=4.44 moles
find the mole ratio of each element
that is divide all moles by the smallest mole( 2.23)

for carbon=2.23/2.23=1,
hydrogen = 2.24/2,23=1
oxygen= 4.44/2.23= 2
the empirical formula = CHO2
therefore the molecular formula=(CHO2)n=270.1
{ ( 12x 1) + 1x1) +(16x2)}n=270.1
45n=270.1
n=6
molecular formula is therefore=(CHO2)6=C6H6O12

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3 years ago

Name four acids obtained from plants

olga55 [171]

Answer:

Formic acid H. COOH

Acetic acid CH3.COOH

Propionic acid CH3 . CH1 . COOH

Butyric acid CH3 . CH1 . CH1 . COOH

Explanation:

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Which of the following best describe the chronological way of specimen preparation?

nata0808 [166]

Answer:

There are many reasons to examine human cells and tissues under the microscope. Medical and biological research is underpinned by knowledge of the normal structure and function of cells and tissues and the organs and structures that they make up. In the normal healthy state, the cells and other tissue elements are arranged in regular, recognizable patterns. Changes induced by a wide range of chemical and physical influences are reflected by alterations in the structure at a microscopic level, and many diseases are characterized by typical structural and chemical abnormalities that differ from the normal state. Identifying these changes and linking them to particular diseases is the basis of histopathology and cytopathology, important specializations of modern medicine. Microscopy plays an important part in haematology (the study of blood), microbiology (the study of microorganisms including parasites and viruses), and more broadly in the areas of biology, zoology, and botany. In all these disciplines, specimens are examined under a microscope.

hope it helps 

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2 years ago

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For sediment to be transformed into rock, which set of procces must take place?

Burka [1]

Answer:

compaction and cementation.

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3 years ago